TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com FEATURES * * * * * * * * Low Start-Up Current (<0.5 mA) Trimmed Oscillator Discharge Current Current Mode Operation to 500 kHz Automatic Feed-Forward Compensation Latching PWM for Cycle-by-Cycle Current Limiting Internally Trimmed Reference With Undervoltage Lockout High-Current Totem-Pole Output Undervoltage Lockout With Hysteresis Double-Pulse Suppression SLVS610B - AUGUST 2006 - REVISED JULY 2007 D (SOIC) OR P (PDIP) PACKAGE (TOP VIEW) COMP VFB ISENSE RT/CT 1 8 2 7 3 6 4 5 VREF VCC OUTPUT GND D (SOIC) PACKAGE (TOP VIEW) COMP NC VFB NC ISENSE NC RT/CT 1 14 2 13 3 12 4 11 5 10 6 7 9 8 VREF NC VCC VC OUTPUT GND POWER GROUND NC - No internal connection DESCRIPTION/ORDERING INFORMATION The TL284xB and TL384xB series of control integrated circuits provide the features that are necessary to implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of external components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state. The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following improvements. The start-up current is specified to be 0.5 mA (max), while the oscillator discharge current is trimmed to 8.3 mA (typ). In addition, during undervoltage lockout conditions, the output has a maximum saturation voltage of 1.2 V while sinking 10 mA (VCC = 5 V). Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. Typical UVLO thresholds of 16 V (on) and 10 V (off) on the TLx842B and TLx844B devices make them ideally suited to off-line applications. The corresponding typical thresholds for the TLx843B and TLx845B devices are 8.4 V (on) and 7.6 V (off). The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A duty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle.The TL284xB-series devices are characterized for operation from -40C to 85C. The TL384xB-series devices are characterized for operation from 0C to 70C. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright (c) 2006-2007, Texas Instruments Incorporated TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 ORDERING INFORMATION TA PACKAGE PDIP - P SOIC - D (8 pin) -40C to 85C SOIC - D (14 pin) PDIP - P SOIC - D (8 pin) 0C to 70C SOIC - D (14 pin) (1) 2 (1) ORDERABLE PART NUMBER Tube of 50 TL2842BP TL2842BP TL2843BP TL2843BP TL2844BP TL2844BP TL2845BP TL2845BP Tube of 75 TL2842BD-8 Reel of 2500 TL2842BDR-8 Tube of 75 TL2843BD-8 Reel of 2500 TL2843BDR-8 Tube of 75 TL2844BD-8 Reel of 2500 TL2844BDR-8 Tube of 75 TL2845BD-8 Reel of 2500 TL2845BDR-8 Tube of 75 TL2842BD Reel of 2500 TL2842BDR Tube of 75 TL2843BD Reel of 2500 TL2843BDR Tube of 75 TL2844BD Reel of 2500 TL2844BDR Tube of 75 TL2845BD Reel of 2500 TL2845BDR Tube of 50 TOP-SIDE MARKING 2842B 2843B 2844B 2845B TL2842B TL2843B TL2844B TL2845B TL3842BP TL3842BP TL3843BP TL3843BP TL3844BP TL3844BP TL3845BP TL3845BP Tube of 75 TL3842BD-8 Reel of 2500 TL3842BDR-8 Tube of 75 TL3843BD-8 Reel of 2500 TL3843BDR-8 Tube of 75 TL3844BD-8 Reel of 2500 TL3844BDR-8 Tube of 75 TL3845BD-8 Reel of 2500 TL3845BDR-8 Tube of 75 TL3842BD Reel of 2500 TL3842BDR Tube of 75 TL3843BD Reel of 2500 TL3843BDR Tube of 75 TL3844BD Reel of 2500 TL3844BDR Tube of 75 TL3845BD Reel of 2500 TL3845BDR 3842B 3843B 3844B 3845B TL3842B TL3843B TL3844B TL3845B Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Submit Documentation Feedback TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 FUNCTIONAL BLOCK DIAGRAM VCC 7 34 V NOM GND UVLO 5 - 5-V VREF 8 EN + VREF Internal Bias 2.5 V VREF Good Logic RT/CT 4 6 OSC OUTPUT T Error Amplifier VFB COMP ISENSE A. 2 1 + - S 2R R R 3 1V PWM Latch CurrentSense Comparator Pin numbers shown are for the 8-pin D package. Submit Documentation Feedback 3 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 Absolute Maximum Ratings (1) (2) over operating free-air temperature range (unless otherwise noted) MIN Low impedance source MAX UNIT 30 VCC Supply voltage VI Analog input voltage range 6.3 V ICC Supply current 30 mA IO Output current 1 A IO(sink) Error amplifier output sink current 10 mA JA Package thermal impedance (3) (4) Self limiting ICC < 30 mA VFB and ISENSE D package -0.3 8 pin 97 14 pin 86 P package Output energy TJ Virtual junction temperature Tstg Storage temperature range Tlead Lead temperature (1) (2) (3) (4) V C/W 85 Capacitive load -65 Soldering, 10 s 5 J 150 C 150 C 300 C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to the device GND terminal. Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) - TA)/JA. Operating at the absolute maximum TJ of 150C can impact reliability. The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions MIN VCC Supply voltage VI Input voltage VO Output voltage ICC Supply current, externally limited IO IO(ref) fosc Oscillator frequency TJ Operating free-air temperature (1) 4 NOM MAX VCC 30 VC (1) 30 RT/CT 0 5.5 VFB and ISENSE 0 5.5 0 30 -0.1 1 OUTPUT POWER GROUND (1) UNIT V V V 25 mA Average output current 200 mA Reference output current -20 mA 500 kHz 100 TL284xB -40 85 TL384xB 0 70 The recommended voltages for VC and POWER GROUND apply only to the 14-pin D package. Submit Documentation Feedback C TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 Reference Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER TEST CONDITIONS TL284xB TL384xB UNIT MIN TYP (2) MAX MIN TYP (2) MAX 4.95 5 5.05 4.9 5 5.1 V Output voltage IO = 1 mA, TJ = 25C Line regulation VCC = 12 V to 25 V 6 20 6 20 mV Load regulation IO = 1 mA to 20 mA 6 25 6 25 mV 0.2 0.4 0.2 0.4 mV/C 5.18 V Average temperature coefficient of output voltage Output voltage, worst-case variation VCC = 12 V to 25 V, IO = 1 mA to 20 mA Output noise voltage f = 10 Hz to 10 kHz, TJ = 25C 4.9 5.1 50 Output-voltage long-term drift After 1000 h at TJ = 25C Short-circuit output current (1) (2) 4.82 -30 V 50 5 25 -100 -180 -30 5 25 mV -100 -180 mA Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Oscillator Section (1) Electrical Characteristics VCC = 15 V (2), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER Initial accuracy TEST CONDITIONS MIN TJ = 25C 49 TA = Tlow to Thigh 48 TJ = 25C, RT = 6.2 k, CT = 1 nF Voltage stability TL284xB 225 VCC = 12 V to 25 V Temperature stability Amplitude Discharge current (1) (2) (3) TL384xB (3) MAX MIN TYP (3) MAX 52 55 49 52 55 56 48 250 275 225 0.2 1 TYP 5 Peak to peak 7.8 RT/CT = 2 V 7.5 8.3 250 275 0.2 1 5 1.7 TJ = 25C, RT/CT = 2 V 56 7.8 8.8 7.6 8.3 kHz % % 1.7 8.8 UNIT V 8.8 8.8 mA Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for the TL3844B and TL3845B. Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Submit Documentation Feedback 5 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 Error-Amplifier Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER Feedback input voltage TEST CONDITIONS COMP = 2.5 V TL284xB UNIT TYP (2) MAX MIN TYP (2) MAX 2.45 2.5 2.55 2.42 2.5 2.58 V -0.3 -1 -0.3 -2 A Input bias current Open-loop voltage amplification TL384xB MIN VO = 2 V to 4 V 65 90 65 90 dB MHz Gain-bandwidth product 0.7 1 0.7 1 Supply-voltage rejection ratio VCC = 12 V to 25 V 60 70 60 70 dB 2 6 2 6 mA -0.5 -0.8 -0.5 -0.8 mA 5 6 5 6 Output sink current VFB = 2.7 V, COMP = 1.1 V Output source current VFB = 2.3 V, COMP = 5 V High-level output voltage VFB = 2.3 V, RL = 15 k to GND Low-level output voltage VFB = 2.7 V, RL = 15 k to GND (1) (2) 0.7 1.1 0.7 V 1.1 V Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Current-Sense Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER TEST CONDITIONS Voltage amplification (3) (4) Current-sense comparator threshold (3) COMP = 5 V Supply-voltage rejection ratio (3) VCC = 12 V to 25 V Input bias current Delay time to output (1) (2) (3) (4) 6 VFB = 0 V to 2 V TL284xB TL384xB UNIT MIN TYP (2) MAX MIN TYP (2) MAX 2.85 3 3.15 2.85 3 3.15 V/V 0.9 1 1.1 0.9 1 1.1 V 70 70 dB -2 -10 -2 -10 A 150 300 150 300 ns Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Measured at the trip point of the latch, with VFB at 0 V. Measured between ISENSE and COMP, with the input changing from 0 V to 0.8 V. Submit Documentation Feedback TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 Output Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER High-level output voltage TEST CONDITIONS TL284xB MIN TYP (2) IOH = -20 mA 13 IOH = -200 mA 12 TL384xB MIN TYP (2) 13.5 13 13.5 13.5 12 13.5 MAX MAX UNIT V IOL = 20 mA 0.1 0.4 0.1 0.4 IOL = 200 mA 1.5 2.2 1.5 2.2 Rise time CL = 1 nF, TJ = 25C 50 150 50 150 ns Fall time CL = 1 nF, TJ = 25C 50 150 50 150 ns UVLO saturation VCC = 5 V, IOL = 1 mA 0.7 1.2 0.7 1.2 V Low-level output voltage (1) (2) V Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Undervoltage-Lockout Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER Start threshold voltage Minimum operating voltage after start-up (1) (2) TEST CONDITIONS TL284xB TL384xB MIN TYP (2) MAX MIN TYP (2) MAX TLx842B, TLx844B 15 16 17 14.5 16 17.5 TLx843B, TLx845B 7.8 8.4 9 7.8 8.4 9 TLx842B, TLx844B 9 10 11 8.5 10 11.5 TLx843B, TLx845B 7 7.6 8.2 7 7.6 8.2 UNIT V V Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Pulse-Width Modulator Section Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER Maximum duty cycle TEST CONDITIONS TL284xB TYP (2) MAX MIN TYP (2) MAX TL3842B, TL3843B 94 96 100 94 96 100 TL3844B, TL3845B 47 48 50 47 48 50 Minimum duty cycle (1) (2) TL384xB MIN 0 0 UNIT % % Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Supply Voltage Electrical Characteristics VCC = 15 V (1), RT = 10 k, CT = 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified) PARAMETER TEST CONDITIONS TL284xB MIN Start-up current Operating supply current VFB and ISENSE at 0 V Limiting voltage ICC = 25 mA (1) (2) 30 TL384xB TYP (2) MAX 0.3 11 34 UNIT TYP (2) MAX 0.5 0.3 0.5 mA 17 11 17 mA MIN 30 34 V Adjust VCC above the start threshold before setting it to 15 V. All typical values are at TJ = 25C. Submit Documentation Feedback 7 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 TYPICAL CHARACTERISTICS AVOL - Open-Loop Voltage Gain - dB 25 15 5 TL2842 10 TL2845 ICC - Supply Current - mA 20 100 200 80 150 60 Phase 40 50 20 0 Gain VCC = 15 V 0 -50 k RL = 100 kX TA = 25C -20 0 1 . E +0 1 0 5 10 15 20 25 30 35 100 Phase Margin - deg ERROR AMPLIFIER OPEN-LOOP GAIN AND PHASE vs FREQUENCY SUPPLY CURRENT vs SUPPLY VOLTAGE 10 40 1 . E +0 2 100 1 . E +0 3 1 . E +0 4 1 . E +0 5 10k 100k 1k f - Frequency - Hz 1 . E +0 6 1M -100 10M 1 . E +0 7 VCC - Supply Voltage - V CURRENT-SENSE INPUT THRESHOLD vs ERROR AMPLIFIER OUTPUT VOLTAGE OSCILLATOR DISCHARGE CURRENT vs TEMPERATURE 9.2 VIN = 15 V Idisharge - Oscillator Discharge Current - mA Vth - Current-Sense Input Threshold - V 1.2 1 0.8 TA = 125C 0.6 TA = 25C 0.4 TA = -55C 0.2 0 0 1 2 3 4 5 6 7 8 VOSC = 2 V 8.8 8.6 8.4 8.2 8 7.8 7.6 7.4 -55 -35 -15 VO - Error Amplifier Output Voltage - V 8 VIN = 15 V 9 Submit Documentation Feedback 5 25 45 65 85 105 125 145 TA - Temperature - C TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 TYPICAL CHARACTERISTICS (continued) REFERENCE VOLTAGE vs SOURCE CURRENT REFERENCE VOLTAGE vs TEMPERATURE 5.2 0 5.15 Vref - Reference Voltage - V Reference Voltage Delta - mV -10 -20 TA = -40C -30 TA = 125C -40 TA = 25C -50 5.1 5.05 5 4.95 4.9 4.85 -60 0 20 40 60 80 100 120 140 4.8 -55 160 -30 -5 Isrc - Source Current - mA 20 45 70 95 120 145 TA - Temperature - C REFERENCE SHORT-CIRCUIT CURRENT vs TEMPERATURE OUTPUT SATURATION VOLTAGE vs LOAD CURRENT 10 180 VIN = 15 V 0 Source Saturation TA = 25C 9 -1 8 Sink Saturation Voltage - V ISC - Short-Circuit Current - mA 160 140 120 100 80 -2 TA = -55C 7 -3 6 -4 5 -5 4 -6 Sink Saturation 3 2 -8 60 TA = 25C 1 40 -55 -7 TA = -55C -9 0 -30 -5 20 45 70 95 120 145 0 100 200 300 400 500 600 700 -10 800 IO - Output Load Current - mA TA - Temperature - C Submit Documentation Feedback 9 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 TYPICAL CHARACTERISTICS (continued) MAXIMUM OUTPUT DUTY CYCLE vs TIMING RESISTOR 100 Dmax - Maximum Duty Cycle - % VCC = 15 V CT = 3.3 nF 90 TA = 25C 80 70 60 50 40 0.1 1 k RT - Timing Resistor - k OUTPUT WAVEFORM 10 Submit Documentation Feedback 10 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 APPLICATION INFORMATION The error-amplifier configuation circuit is shown in Figure 1. 2.5 V 0.5 mA Error Amplifier VFB Zi COMP Zf A. + - Error amplifier can source or sink up to 0.5 mA. Figure 1. Error-Amplifier Configuration The current-sense circuit is shown in Figure 2. Error Amplifier IS (see Note A) 2R + - R COMP Rf RS 1V Current-Sense Comparator ISENSE Cf GND A. Peak current (IS) is determined by the formula: IS(max) = 1 V/RS B. A small RC filter formed by resistor Rf and capacitor Cf may be required to suppress switch transients. Figure 2. Current-Sense Circuit The oscillator frequency is set using the circuit shown in Figure 3. The frequency is calculated as: f = 1 / RTCT For RT > 5 k: f 1.72 / RTCT VREF RT RT/CT CT GND Figure 3. Oscillator Section Submit Documentation Feedback 11 TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 APPLICATION INFORMATION (continued) TIMING RESISTANCE vs FREQUENCY DEAD TIME vs TIMING CAPACITANCE 100 100 CT = 10 nF VCC = 15 V RT 5 k TA = 25C 40 CT = 4.7 nF CT = 2.2 nF R T - Timing Resistance - k Dead Time - s 40 10 4 1 CT = 1 nF CT = 22 nF 10 CT = 47 nF CT = 100 nF 4 0.4 VCC = 15 V TA = 25C 1 100 0.1 1 4 10 40 100 1k 10k 100k 1M f - Frequency - Hz CT - Timing Capacitance - nF Open-Loop Laboratory Test Fixture In the open-loop laboratory test fixture (see Figure 4), high peak currents associated with loads necessitate careful grounding techniques. Timing and bypass capacitors should be connected close to the GND terminal in a single-point ground. The transistor and 5-k potentiometer sample the oscillator waveform and apply an adjustable ramp to the ISENSE terminal. REF RT A 4.7 k VCC 2N2222 100 k 1-k Error Amplifier Adjust VFB 5 k VREF COMP TL284xB TL384xB 0.1 F VCC 0.1 F ISENSE OUTPUT 1 k, 1 W OUTPUT 4.7 k ISENSE Adjust RT/CT GND GND CT Figure 4. Open-Loop Laboratory Test Fixture 12 Submit Documentation Feedback TL284xB, TL384xB HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS www.ti.com SLVS610B - AUGUST 2006 - REVISED JULY 2007 APPLICATION INFORMATION (continued) Shutdown Technique The PWM controller (see Figure 5) can be shut down by two methods: either raise the voltage at ISENSE above 1 V or pull the COMP terminal below a voltage two diode drops above ground. Either method causes the output of the PWM comparator to be high (refer to block diagram). The PWM latch is reset dominant so that the output remains low until the next clock cycle after the shutdown condition at the COMP or ISENSE terminal is removed. In one example, an externally latched shutdown can be accomplished by adding an SCR that resets by cycling VCC below the lower UVLO threshold. At this point, the reference turns off, allowing the SCR to reset. 1 k VREF COMP Shutdown 330 ISENSE 500 Shutdown To Current-Sense Resistor Figure 5. Shutdown Techniques A fraction of the oscillator ramp can be summed resistively with the current-sense signal to provide slope compensation for converters requiring duty cycles over 50% (see Figure 6). Note that capacitor C forms a filter with R2 to suppress the leading-edge switch spikes. VREF 0.1 F RT RT/CT CT R1 ISENSE R2 ISENSE C RSENSE Figure 6. Slope Compensation Submit Documentation Feedback 13 PACKAGE OPTION ADDENDUM www.ti.com 11-Jun-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TL2842BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2842BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2842BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2842BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2842BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2842BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2842BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2842BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2842BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2842BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2843BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2843BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2843BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2843BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2843BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2843BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2843BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples Addendum-Page 1 PACKAGE OPTION ADDENDUM www.ti.com 11-Jun-2010 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TL2843BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) TL2843BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2843BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2843BPG4 ACTIVE PDIP P 8 Call TI Purchase Samples TL2844BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2844BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2844BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2844BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2844BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2844BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2844BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2844BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2844BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2844BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2845BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2845BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL2845BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL2845BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TBD Addendum-Page 2 CU NIPDAU Level-1-260C-UNLIM Call TI Request Free Samples PACKAGE OPTION ADDENDUM www.ti.com 11-Jun-2010 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TL2845BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2845BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2845BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2845BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL2845BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL2845BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3842BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL3842BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3842BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL3842BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3842BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3842BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3842BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3842BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3842BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3842BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3843BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL3843BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office Addendum-Page 3 PACKAGE OPTION ADDENDUM www.ti.com 11-Jun-2010 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TL3843BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples TL3843BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3843BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3843BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3843BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3843BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3843BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3843BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3844BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3844BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3844BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3844BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3844BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3844BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3844BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3844BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3844BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3844BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office Addendum-Page 4 PACKAGE OPTION ADDENDUM www.ti.com 11-Jun-2010 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TL3845BD ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3845BD-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3845BDG4 ACTIVE SOIC D 14 50 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3845BDG4-8 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Contact TI Distributor or Sales Office TL3845BDR ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3845BDR-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3845BDRG4 ACTIVE SOIC D 14 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3845BDRG4-8 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples TL3845BP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office TL3845BPE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Contact TI Distributor or Sales Office (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) Addendum-Page 5 PACKAGE OPTION ADDENDUM www.ti.com (3) 11-Jun-2010 MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 6 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TL2842BDR SOIC D TL2842BDR-8 SOIC TL2843BDR SOIC TL2843BDR-8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL2844BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL2844BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL2845BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL2845BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL3842BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL3842BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL3843BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL3843BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL3844BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL3844BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 TL3845BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1 TL3845BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TL2842BDR SOIC D 14 2500 367.0 367.0 38.0 TL2842BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL2843BDR SOIC D 14 2500 367.0 367.0 38.0 TL2843BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL2844BDR SOIC D 14 2500 367.0 367.0 38.0 TL2844BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL2845BDR SOIC D 14 2500 367.0 367.0 38.0 TL2845BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL3842BDR SOIC D 14 2500 367.0 367.0 38.0 TL3842BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL3843BDR SOIC D 14 2500 367.0 367.0 38.0 TL3843BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL3844BDR SOIC D 14 2500 367.0 367.0 38.0 TL3844BDR-8 SOIC D 8 2500 340.5 338.1 20.6 TL3845BDR SOIC D 14 2500 367.0 367.0 38.0 TL3845BDR-8 SOIC D 8 2500 340.5 338.1 20.6 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. 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