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FEATURES
1
2
3
4
8
7
6
5
COMP
VFB
ISENSE
RT/CT
VREF
VCC
OUTPUT
GND
D (SOIC) OR P (PDIP) PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
14
13
12
11
10
9
8
COMP
NC
VFB
NC
ISENSE
NC
RT/CT
VREF
NC
VCC
VC
OUTPUT
GND
POWER GROUND
D (SOIC) PACKAGE
(TOP VIEW)
NC − No internal connection
DESCRIPTION/ORDERING INFORMATION
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
•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 CurrentLimiting
•Internally Trimmed Reference WithUndervoltage Lockout•High-Current Totem-Pole Output UndervoltageLockout With Hysteresis•Double-Pulse Suppression
The TL284xB and TL384xB series of control integrated circuits provide the features that are necessary toimplement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number ofexternal components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precisionreference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensurelatched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and atotem-pole output stage designed to source or sink high-peak current. The output stage, suitable for drivingN-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 followingimprovements. The start-up current is specified to be 0.5 mA (max), while the oscillator discharge current istrimmed to 8.3 mA (typ). In addition, during undervoltage lockout conditions, the output has a maximumsaturation voltage of 1.2 V while sinking 10 mA (V
CC
= 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 ideallysuited to off-line applications. The corresponding typical thresholds for the TLx843B and TLx845B devices are8.4 V (on) and 7.6 V (off). The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. Aduty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggleflip-flop, which blanks the output off every other clock cycle.The TL284xB-series devices are characterized foroperation from –40 °C to 85 °C. The TL384xB-series devices are characterized for operation from 0 °C to 70 °C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2007, Texas Instruments IncorporatedProducts conform to specifications per the terms of the TexasInstruments standard warranty. Production processing does notnecessarily include testing of all parameters.
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TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER TOP-SIDE MARKING
TL2842BP TL2842BPTL2843BP TL2843BPPDIP – P Tube of 50
TL2844BP TL2844BPTL2845BP TL2845BPTube of 75 TL2842BD-8
2842BReel of 2500 TL2842BDR-8Tube of 75 TL2843BD-8
2843BReel of 2500 TL2843BDR-8SOIC – D (8 pin)
Tube of 75 TL2844BD-8
2844BReel of 2500 TL2844BDR-8–40 °C to 85 °C
Tube of 75 TL2845BD-8
2845BReel of 2500 TL2845BDR-8Tube of 75 TL2842BD
TL2842BReel of 2500 TL2842BDRTube of 75 TL2843BD
TL2843BReel of 2500 TL2843BDRSOIC – D (14 pin)
Tube of 75 TL2844BD
TL2844BReel of 2500 TL2844BDRTube of 75 TL2845BD
TL2845BReel of 2500 TL2845BDR
TL3842BP TL3842BPTL3843BP TL3843BPPDIP – P Tube of 50
TL3844BP TL3844BPTL3845BP TL3845BPTube of 75 TL3842BD-8
3842BReel of 2500 TL3842BDR-8Tube of 75 TL3843BD-8
3843BReel of 2500 TL3843BDR-8SOIC – D (8 pin)
Tube of 75 TL3844BD-8
3844BReel of 2500 TL3844BDR-80°C to 70 °C
Tube of 75 TL3845BD-8
3845BReel of 2500 TL3845BDR-8Tube of 75 TL3842BD
TL3842BReel of 2500 TL3842BDRTube of 75 TL3843BD
TL3843BReel of 2500 TL3843BDRSOIC – D (14 pin)
Tube of 75 TL3844BD
TL3844BReel of 2500 TL3844BDRTube of 75 TL3845BD
TL3845BReel of 2500 TL3845BDR
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available atwww.ti.com/sc/package.
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Internal
Bias
VREF
Good
Logic
OSC
Error
Amplifier
PWM
Latch
Current-
Sense
Comparator
34 V NOM
VCC
GND
RT/CT
VFB
COMP
ISENSE
7
5
4
2
1
3
8
6
VREF
OUTPUT
+
−
UVLO
EN
2R
R1 V
S
R
T
+
−
5-V VREF
2.5 V
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
FUNCTIONAL BLOCK DIAGRAM
A. Pin numbers shown are for the 8-pin D package.
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Absolute Maximum Ratings
(1) (2)
Recommended Operating Conditions
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
Low impedance source 30V
CC
Supply voltage VSelfI
CC
< 30 mA
limitingV
I
Analog input voltage range VFB and I
SENSE
–0.3 6.3 VI
CC
Supply current 30 mAI
O
Output current ±1 AI
O(sink)
Error amplifier output sink current 10 mA8 pin 97D packageθ
JA
Package thermal impedance
(3) (4)
14 pin 86 °C/WP package 85Output energy Capacitive load 5 μJT
J
Virtual junction temperature 150 °CT
stg
Storage temperature range –65 150 °CT
lead
Lead temperature Soldering, 10 s 300 °C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratingsonly, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operatingconditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2) All voltages are with respect to the device GND terminal.(3) Maximum power dissipation is a function of T
J
(max), θ
JA
, and T
A
. The maximum allowable power dissipation at any allowable ambienttemperature is P
D
= (T
J
(max) – T
A
)/ θ
JA
. Operating at the absolute maximum T
J
of 150 °C can impact reliability.(4) The package thermal impedance is calculated in accordance with JESD 51-7.
MIN NOM MAX UNIT
V
CC
30V
CC
Supply voltage VVC
(1)
30R
T
/C
T
0 5.5V
I
Input voltage VVFB and I
SENSE
0 5.5OUTPUT 0 30V
O
Output voltage VPOWER GROUND
(1)
–0.1 1I
CC
Supply current, externally limited 25 mAI
O
Average output current 200 mAI
O(ref)
Reference output current –20 mAf
osc
Oscillator frequency 100 500 kHzTL284xB –40 85T
J
Operating free-air temperature °CTL384xB 0 70
(1) The recommended voltages for VC and POWER GROUND apply only to the 14-pin D package.
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Reference Section Electrical Characteristics
Oscillator Section
(1)
Electrical Characteristics
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
Output voltage I
O
= 1 mA, T
J
= 25 °C 4.95 5 5.05 4.9 5 5.1 VLine regulation V
CC
= 12 V to 25 V 6 20 6 20 mVLoad regulation I
O
= 1 mA to 20 mA 6 25 6 25 mVAverage temperature
0.2 0.4 0.2 0.4 mV/ °Ccoefficient of output voltageOutput voltage, worst-case V
CC
= 12 V to 25 V,
4.9 5.1 4.82 5.18 Vvariation I
O
= 1 mA to 20 mAOutput noise voltage f = 10 Hz to 10 kHz, T
J
= 25 °C 50 50 μVOutput-voltage long-term drift After 1000 h at T
J
= 25 °C 5 25 5 25 mVShort-circuit output current –30 –100 –180 –30 –100 –180 mA
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
V
CC
= 15 V
(2)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(3)
MAX MIN TYP
(3)
MAX
T
J
= 25 °C 49 52 55 49 52 55T
A
= T
low
to T
high
48 56 48 56Initial accuracy kHzT
J
= 25 °C, R
T
= 6.2 k Ω,
225 250 275 225 250 275C
T
= 1 nFVoltage stability V
CC
= 12 V to 25 V 0.2 1 0.2 1 %Temperature stability 5 5 %Amplitude Peak to peak 1.7 1.7 VT
J
= 25 °C, R
T
/C
T
= 2 V 7.8 8.3 8.8 7.8 8.3 8.8Discharge current mAR
T
/C
T
= 2 V 7.5 8.8 7.6 8.8
(1) Output frequency equals oscillator frequency for the TL3842B and TL3843B. Output frequency is one-half the oscillator frequency for theTL3844B and TL3845B.(2) Adjust V
CC
above the start threshold before setting it to 15 V.(3) All typical values are at T
J
= 25 °C.
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Error-Amplifier Section Electrical Characteristics
Current-Sense Section Electrical Characteristics
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
Feedback input voltage COMP = 2.5 V 2.45 2.5 2.55 2.42 2.5 2.58 VInput bias current –0.3 –1 –0.3 –2 μAOpen-loop voltage
V
O
= 2 V to 4 V 65 90 65 90 dBamplification
Gain-bandwidth product 0.7 1 0.7 1 MHzSupply-voltage rejection ratio V
CC
= 12 V to 25 V 60 70 60 70 dBOutput sink current VFB = 2.7 V, COMP = 1.1 V 2 6 2 6 mAOutput source current VFB = 2.3 V, COMP = 5 V –0.5 –0.8 –0.5 –0.8 mAVFB = 2.3 V,High-level output voltage 5 6 5 6 VR
L
= 15 k Ωto GNDVFB = 2.7 V,Low-level output voltage 0.7 1.1 0.7 1.1 VR
L
= 15 k Ωto GND
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
Voltage amplification
(3) (4)
2.85 3 3.15 2.85 3 3.15 V/VCurrent-sense comparator
COMP = 5 V 0.9 1 1.1 0.9 1 1.1 Vthreshold
(3)
Supply-voltage rejection
V
CC
= 12 V to 25 V 70 70 dBratio
(3)
Input bias current –2 –10 –2 –10 μADelay time to output VFB = 0 V to 2 V 150 300 150 300 ns
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.(3) Measured at the trip point of the latch, with VFB at 0 V.(4) Measured between I
SENSE
and COMP, with the input changing from 0 V to 0.8 V.
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Output Section Electrical Characteristics
Undervoltage-Lockout Section Electrical Characteristics
Pulse-Width Modulator Section Electrical Characteristics
Supply Voltage Electrical Characteristics
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
I
OH
= –20 mA 13 13.5 13 13.5High-level output voltage VI
OH
= –200 mA 12 13.5 12 13.5I
OL
= 20 mA 0.1 0.4 0.1 0.4Low-level output voltage VI
OL
= 200 mA 1.5 2.2 1.5 2.2Rise time C
L
= 1 nF, T
J
= 25 °C 50 150 50 150 nsFall time C
L
= 1 nF, T
J
= 25 °C 50 150 50 150 nsUVLO saturation V
CC
= 5 V, I
OL
= 1 mA 0.7 1.2 0.7 1.2 V
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
TLx842B, TLx844B 15 16 17 14.5 16 17.5Start threshold voltage VTLx843B, TLx845B 7.8 8.4 9 7.8 8.4 9TLx842B, TLx844B 9 10 11 8.5 10 11.5Minimum operating voltage
Vafter start-up
TLx843B, TLx845B 7 7.6 8.2 7 7.6 8.2
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
TL3842B, TL3843B 94 96 100 94 96 100Maximum duty cycle %TL3844B, TL3845B 47 48 50 47 48 50Minimum duty cycle 0 0 %
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
V
CC
= 15 V
(1)
, R
T
= 10 k Ω, C
T
= 3.3 nF, over recommended operating free-air temperature range (unless otherwise specified)
TL284xB TL384xBPARAMETER TEST CONDITIONS UNITMIN TYP
(2)
MAX MIN TYP
(2)
MAX
Start-up current 0.3 0.5 0.3 0.5 mAOperating supply current VFB and I
SENSE
at 0 V 11 17 11 17 mALimiting voltage I
CC
= 25 mA 30 34 30 34 V
(1) Adjust V
CC
above the start threshold before setting it to 15 V.(2) All typical values are at T
J
= 25 °C.
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TYPICAL CHARACTERISTICS
-20
0
20
40
60
80
100
1 . E +0 1 1 . E +0 2 1 . E +0 3 1 . E +0 4 1 . E +0 5 1 . E +0 6 1 . E +0 7
f – Frequency – Hz
AVOL – Open-Loop Voltage Gain – dB
-100
-50
0
50
100
150
200
Phase Margin – deg
VCC = 15 V
RL= 100 kX
TA= 25°C
Phase
Gain
kΩ
10 100 1k 10k 100k 1M 10M
0
5
10
15
20
25
0 5 10 15 20 25 30 35 40
VCC – Supply Voltage – V
ICC – Supply Current – mA
TL2842
0
0.2
0.4
0.6
0.8
1
1.2
012345678
VO– Error Amplifier Output Voltage – V
Vth – Current-Sense Input Threshold – V
TA= 125°C
TA= 25°C
TA= -55°C
7.4
7.6
7.8
8
8.2
8.4
8.6
8.8
9
9.2
-55 -35 -15 5 25 45 65 85 105 125 145
TA– Temperature – °C
Idisharge – Oscillator Discharge Current – mA
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
ERROR AMPLIFIER OPEN-LOOPSUPPLY CURRENT GAIN AND PHASEvs vsSUPPLY VOLTAGE FREQUENCY
CURRENT-SENSE INPUT THRESHOLD OSCILLATOR DISCHARGE CURRENTvs vsERROR AMPLIFIER OUTPUT VOLTAGE TEMPERATURE
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-60
-50
-40
-30
-20
-10
0
0 20 40 60 80 100 120 140 160
Isrc – Source Current – mA
Reference Voltage Delta – mV
TA= -40°C
TA= 25°C
TA= 125°C
4.8
4.85
4.9
4.95
5
5.05
5.1
5.15
5.2
-55 -30 -5 20 45 70 95 120 145
TA– Temperature – °C
Vref – Reference Voltage – V
40
60
80
100
120
140
160
180
-55 -30 -5 20 45 70 95 120 145
TA– Temperature – °C
ISC – Short-Circuit Current – mA
0
1
2
3
4
5
6
7
8
9
10
0 100 200 300 400 500 600 700 800
IO– Output Load Current – mA
Sink Saturation Voltage – V
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
Sink Saturation
TA= 25°C
TA= -55°C
TA= -55°C
TA= 25°C
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
TYPICAL CHARACTERISTICS (continued)
REFERENCE VOLTAGE REFERENCE VOLTAGEvs vsSOURCE CURRENT TEMPERATURE
REFERENCE SHORT-CIRCUIT CURRENT OUTPUT SATURATION VOLTAGEvs vsTEMPERATURE LOAD CURRENT
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40
50
60
70
80
90
100
0.1 1 10
RT– Timing Resistor – k€
Dmax – Maximum Duty Cycle – %
kΩ
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
TYPICAL CHARACTERISTICS (continued)
MAXIMUM OUTPUT DUTY CYCLEvsTIMING RESISTOR
OUTPUT WAVEFORM
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APPLICATION INFORMATION
Zi
Zf
VFB
COMP
2.5 V 0.5 mA
Error
Amplifier
+
−
RSCf
Rf
Error
Amplifier 2R
R1 V Current-Sense
Comparator
IS
(see Note A) +
−
ISENSE
COMP
GND
CT
RT
VREF
RT/CT
GND
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
The error-amplifier configuation circuit is shown in Figure 1 .
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 .
A. Peak current (I
S
) is determined by the formula: I
S(max)
= 1 V/R
S
B. A small RC filter formed by resistor R
f
and capacitor C
f
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 / R
T
C
T
For R
T
> 5 k Ω:f≈1.72 / R
T
C
T
Figure 3. Oscillator Section
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TIMING RESISTANCE
vs
FREQUENCY
Ω
100 1k 10k 100k 1M
f − Frequency − Hz
RT− Timing Resistance − k
100
40
10
4
1
VCC = 15 V
TA = 25°C
CT = 22 nF
CT = 47 nF
CT = 100 nF
CT = 10 nF
CT = 4.7 nF
CT = 2.2 nF
CT = 1 nF
DEAD TIME
vs
TIMING CAPACITANCE
sµ
100401041
CT − T iming Capacitance − nF
100
40
10
4
1
0.4
0.1
Dead Time −
VCC = 15 V
RT ≥ 5 kΩ
TA = 25°C
Open-Loop Laboratory Test Fixture
2N2222
4.7 kΩ
1-kΩ
Error Amplifier Adjust
4.7 kΩ5 kΩ
ISENSE
Adjust
RT
100 kΩ
VCC
0.1 µF
0.1 µF
REF
VCC
OUTPUT
GND
1 kΩ, 1 W
A
CT
TL284xB
TL384xB
ISENSE
VREF
RT/CT
VFB
COMP
OUTPUT
GND
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
APPLICATION INFORMATION (continued)
In the open-loop laboratory test fixture (see Figure 4 ), high peak currents associated with loads necessitatecareful grounding techniques. Timing and bypass capacitors should be connected close to the GND terminal in asingle-point ground. The transistor and 5-k Ωpotentiometer sample the oscillator waveform and apply anadjustable ramp to the I
SENSE
terminal.
Figure 4. Open-Loop Laboratory Test Fixture
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Shutdown Technique
330 Ω
1 kΩ
500 Ω
To Current-Sense
Resistor
Shutdown
Shutdown
COMP
VREF
ISENSE
RT
0.1 µF
CT
R1
R2
ISENSE
RSENSE
C
VREF
RT/CT
ISENSE
TL284xB , TL384xBHIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
SLVS610B – AUGUST 2006 – REVISED JULY 2007
APPLICATION INFORMATION (continued)
The PWM controller (see Figure 5 ) can be shut down by two methods: either raise the voltage at I
SENSE
above1 V or pull the COMP terminal below a voltage two diode drops above ground. Either method causes the outputof the PWM comparator to be high (refer to block diagram). The PWM latch is reset dominant so that the outputremains low until the next clock cycle after the shutdown condition at the COMP or I
SENSE
terminal is removed.In one example, an externally latched shutdown can be accomplished by adding an SCR that resets by cyclingV
CC
below the lower UVLO threshold. At this point, the reference turns off, allowing the SCR to reset.
Figure 5. Shutdown Techniques
A fraction of the oscillator ramp can be summed resistively with the current-sense signal to provide slopecompensation for converters requiring duty cycles over 50% (see Figure 6 ). Note that capacitor C forms a filterwith R2 to suppress the leading-edge switch spikes.
Figure 6. Slope Compensation
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PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 1
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
PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 2
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) CU NIPDAU Level-1-260C-UNLIM Request Free Samples
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 TBD Call TI 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
PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 3
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
PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 4
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
PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 5
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)
PACKAGE OPTION ADDENDUM
www.ti.com 11-Jun-2010
Addendum-Page 6
(3) 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.
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
TL2842BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1
TL2842BDR-8 SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1
TL2843BDR SOIC D 14 2500 330.0 16.4 6.5 9.0 2.1 8.0 16.0 Q1
TL2843BDR-8 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
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 1
*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
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 2
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