NCR320Z / NCR321Z 250 mA LED driver in SOT223 Rev. 1 -- 4 February 2019 Product data sheet 1. Product profile 1.1. General description LED driver consisting of a resistor-equipped NPN transistor with two diodes on one chip in a medium power SOT223 (SC-73) Surface-Mounted Device (SMD) plastic package. Table 1. Product overview Type number Package Nexperia JEITA NCR320Z SOT223 SC-73 NCR321Z SOT223 SC-73 1.2. Features and benefits * * * * * * * * * Stabilized output current of 10 mA without external resistor Stabilized output current adjustable up to 250 mA when an external resistor is used High current accuracy at supply voltage variation Low voltage overhead of 1.4 V Reduces component count and board space High power dissipation of 1250 mW Supply voltage up to 16 V Digital PWM input up to 10 kHz frequency for NCR321Z AEC-Q101 qualified 1.3. Applications * * * * Constant current LED driver Generic constant current source Automotive applications (for example: interior lighting, dash board, instrumentation, number plate light) Increase stabilized output current by paralleling drivers NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 1.4. Quick reference data Table 2. Quick reference data Symbol Parameter Min Typ Max Unit NCR320Z - - 25 V NCR321Z - - 4.5 V Vout output voltage - - 16 V Iout stabilized output current VEN [1] Conditions enable voltage NCR320Z Vout= 1.4 V; VEN= 12 V [1] 9 10 11 mA NCR321Z Vout= 1.4 V; VEN= 3.3 V [1] 9 10 11 mA Pulse test: tp 300 s; 0.02 2. Pinning information Table 3. Pinning Pin Symbol Description 1 VEN enable voltage 2 REXT external resistor 3 GND ground 4 IOUT output current Simplified outline Symbol IOUT 4 1 2 3 VEN REXT GND aaa-029430 3. Ordering information Table 4. Ordering information Type number Package Name Description Version NCR320Z SC-73 plastic surface-mounted package with increased heatsink; 4 leads SOT223 NCR321Z SC-73 plastic surface-mounted package with increased heatsink; 4 leads SOT223 4. Marking NCR320Z_NCR321Z Product data sheet Table 5. Marking codes Type number Marking code NCR320Z CR320Z NCR321Z CR321Z All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 2 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 5. Limiting values Table 6. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit Iout stabilized output current if external resistor is used - 300 mA VEN enable voltage NCR320Z - 25 V NCR321Z - 4.5 V Vout output voltage - 16 V VR reverse voltage [1] - 0.5 V Ptot total power dissipation [2] - 765 mW [3] - 1160 mW [4] - 1250 mW [5] - 1800 mW Tamb 25 C Tj junction temperature - 150 C Tamb ambient temperature -55 150 C Tstg storage temperature -65 150 C [1] [2] [3] [4] [5] Between all terminals. Device mounted on an FR4 Printed-Circuit Board (PCB), single-side copper (70 m), tin-plated and standard footprint. Device mounted on an FR4 Printed-Circuit Board (PCB), single-side copper (70 m), tin-plated; mounting 2 pad for collector 1 cm . Device mounted on an FR4 Printed-Circuit Board (PCB), 4-layer copper, tin-plated and standard footprint. Device mounted on an FR4 Printed-Circuit Board (PCB), 4-layer copper, tin-plated; mounting pad for 2 collector 1 cm . aaa.029431 2.0 Ptot (W) (1) 1.6 1.2 (2) (3) 0.8 (4) 0.4 0 -75 -25 25 75 125 175 Tamb (C) 2 (1) FR4 PCB, 4-layer copper, 1 cm (2) FR4 PCB, 4-layer copper, standard footprint 2 (3) FR4 PCB, single sided copper (70 m), 1 cm (4) FR4 PCB, single-sided copper (70 m), standard footprint Fig. 1. NCR320Z_NCR321Z Product data sheet Power derating curve All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 3 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 6. Thermal characteristics Table 7. Thermal characteristics Symbol Parameter Conditions Rth(j-a) in free air Rth(j-sp) [1] [2] [3] [4] thermal resistance from junction to ambient Min Typ Max Unit [1] - - 164 K/W [2] - - 108 K/W [3] - - 100 K/W [4] - - 70 K/W - - 27 K/W thermal resistance from junction to solder point Device mounted on an FR4 PCB, single-sided copper (70 m), tin-plated and standard footprint. Device mounted on an FR4 PCB, single-sided copper (70 m), tin-plated; mounting pad 2 for collector 1 cm . Device mounted on an FR4 PCB, 4-layer copper, tin-plated and standard footprint. 2 Device mounted on an FR4 PCB, 4-layer copper, tin-plated; mounting pad for collector 1 cm . aaa-029432 103 Zth(j-a) (K/W) duty cycle = 1 102 0.75 0.50 0.33 0.20 0.10 10 0.05 0.02 0.01 0 1 10-5 10-4 10-3 10-2 10-1 1 10 102 tp (s) 103 FR4 PCB; single-sided copper; tin-plated and standard footprint Fig. 2. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values aaa-029433 103 Zth(j-a) (K/W) 102 duty cycle = 1 0.75 0.50 0.33 0.20 0.10 10 0.05 0.02 0.01 0 1 -5 10 10-4 10-3 10-2 10-1 1 FR4 PCB; single-sided copper, tin-plated; mounting pad for collector 1 cm Fig. 3. 10 102 tp (s) 103 2 Transient thermal impedance from junction to ambient as a function of pulse duration; typical values NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 4 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029434 103 Zth(j-a) (K/W) 102 duty cycle = 1 0.75 0.50 0.33 0.20 0.10 10 0.05 0.02 0.01 0 1 -5 10 10-4 10-3 10-2 10-1 1 10 102 tp (s) 103 FR4 PCB; 4-layer copper; tin-plated and standard footprint Fig. 4. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values aaa-029435 103 Zth(j-a) (K/W) 102 duty cycle = 1 0.50 0.75 0.33 10 0.20 0.10 0.05 0.02 0.01 0 1 10-5 10-4 10-3 10-2 10-1 1 FR4 PCB; 4-layer copper, tin-plated; mounting pad for collector 1 cm Fig. 5. 10 102 tp (s) 103 2 Transient thermal impedance from junction to ambient as a function of pulse duration; typical values NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 5 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 7. Characteristics Table 8. Characteristics Tamb = 25 C unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit V(BR)CEO collector-emitter breakdown voltage IC = 1 mA; IB = 0 A 16 - - V hFE DC current gain VCE =1 V; IC = 50 mA 350 - Rint internal resistor IRint = 10 mA 95 105 VRint voltage drop at internal resistor Rint Iout = 10 mA [1] 0.85 0.95 1.05 V IEN enable current NCR320Z VEN = 12 V [1] - 1.2 - mA NCR321Z VEN =3.3 V [1] - 1.2 - mA NCR320Z - 10 - k NCR321Z - 1.5 - k RB [1] 200 85 bias resistor Iout stabilized output current NCR320Z VEN = 12 V; Vout = 1.4 V [1] 9 10 11 mA NCR321Z VEN = 3.3 V; Vout = 1.4 V [1] 9 10 11 mA NCR320Z at Rext = 3 VEN = 12 V; Vout > 1.4 V [1] - 250 - mA NCR321Z at Rext = 3 VEN = 3.3 V; Vout > 1.4 V [1] - 250 - mA Vout, min lowest sufficient output voltage overhead: Vout = VCC - VLED Iout> 10 mA - 1.4 - V Iout/(Iout x Tamb) stabilized output current change over ambient temperature Iout stabilized output current Iout/(Iout x VCC) [1] NCR320Z VEN = 12 V; Vout > 2 V [1] - -0.27 - %/K NCR321Z VEN = 3.3 V; Vout > 2 V [1] - -0.27 - %/K stabilized output current change over supply voltage NCR320Z VEN = 12 V; Vout > 2 V [1] - 1 - %/V NCR321Z VEN = 3.3 V; Vout > 2 V [1] - 1 - %/V Pulse test: tp 300 s; 0.02. NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 6 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029390 0.3 aaa-029444 0.4 Iout (A) Iout (A) (1) (2) 0.3 (1) 0.2 (2) 0.2 (3) 0.1 (4) 0.1 (5) 0 (6) 0 4 8 Vout (V) VEN = 12 V; Tamb = 25 C (1) Rext = 3 (2) Rext = 4 (3) Rext = 6 (4) Rext = 10 (5) Rext = 20 (6) Rext = open Fig. 6. 0 12 1 10 Rext 102 VEN = 12 V; Tamb = 25 C (1) Vout = 1.4 V (2) Vout = 5.4 V Fig. 7. NCR320Z: Output current as a function of external resistor; typical values NCR320Z: Output current as a function of output voltage; typical values aaa-029392 0.015 Iout (A) aaa-029393 0.07 Iout (A) 0.06 (3) (2) (3) 0.05 0.010 (1) (2) 0.04 (1) 0.03 0.005 0.02 0.01 0 0 4 8 Vout (V) 0 12 VEN = 12 V; Rext = open (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Fig. 8. Product data sheet 4 8 Vout (V) 12 VEN = 12 V; Rext = 20 (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C NCR320Z: Output current as a function of output voltage; typical values NCR320Z_NCR321Z 0 Fig. 9. NCR320Z: Output current as a function of output voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 7 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029394 0.3 Iout (A) (3) (2) (1) 0.2 aaa-029395 0.015 Iout (A) (3) 0.010 (2) (1) 0.1 0 0.005 0 4 8 Vout (V) 0 12 VEN = 12 V; Rext = 3 (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C 0 5 10 15 20 25 VEN (V) Vout = 2 V; Rext = open (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Fig. 10. NCR320Z: Output current as a function of output voltage; typical values aaa-029396 0.07 Iout (A) 0.06 Fig. 11. NCR320Z: Output current as a function of enable voltage; typical values aaa-029397 0.3 (3) Iout (A) (3) (2) (1) 0.05 (2) (1) 0.2 0.04 0.03 0.1 0.02 0.01 0 0 5 10 15 20 25 VEN (V) Vout = 2 V; Rext = 20 (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Product data sheet 0 5 10 15 20 25 VEN (V) Vout = 2 V; Rext = 3 (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Fig. 12. NCR320Z: Output current as a function of enable voltage; typical values NCR320Z_NCR321Z 0 Fig. 13. NCR320Z: Output current as a function of enable voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 8 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029398 0.3 Iout (A) (1) IEN (mA) (1) 0.2 aaa-029399 3 (2) 2 (2) (3) (3) 0.1 1 (4) (5) 0 (6) 0 5 10 15 0 20 25 VEN (V) Vout = 2 V; Tamb = 25 C (1) Rext = 3 (2) Rext = 4 (3) Rext = 6 (4) Rext = 10 (5) Rext = 20 (6) Rext = open 0 5 10 15 20 25 VEN (V) Iout = 0 A; Rext = open (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Fig. 15. NCR320Z: Enable current as a function of enable voltage; typical values Fig. 14. NCR320Z: Output current as a function of enable voltage; typical values aaa-029400 0.3 Iout (A) Iout (A) (1) 0.2 aaa-029445 0.4 (2) 0.3 (1) (2) 0.2 (3) 0.1 (4) 0.1 (5) 0 (6) 0 4 8 Vout (V) 12 VEN = 3.3 V; Tamb = 25 C (1) Rext = 3 (2) Rext = 4 (3) Rext = 6 (4) Rext = 10 (5) Rext = 20 (6) Rext = open 0 1 10 Rext 102 VEN = 3.3 V; Tamb = 25 C (1) Vout = 1.4 V (2) Vout = 5.4 V Fig. 17. NCR321Z: Output current as a function of external resistor; typical values Fig. 16. NCR321Z: Output current as a function of output voltage; typical values NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 9 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029402 0.015 Iout (A) aaa-029403 0.07 Iout (A) 0.06 (3) (2) (1) (3) 0.010 0.05 (2) 0.04 (1) 0.03 0.005 0.02 0.01 0 0 4 8 Vout (V) 0 12 VEN = 3.3 V; Rext = open (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C 0 4 8 12 Vout (V) VEN = 3.3 V; Rext = 20 (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C Fig. 18. NCR321Z: Output current as a function of output voltage; typical values aaa-029404 0.3 (3) (2) Iout (A) (1) 0.2 Fig. 19. NCR321Z: Output current as a function of output voltage; typical values aaa-029405 0.015 Iout (A) (3) (2) 0.010 (1) 0.1 0 0.005 0 4 8 Vout (V) 12 VEN = 3.3 V; Rext = 3 (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C Product data sheet 0 1 2 3 4 VEN (V) 5 Vout = 2 V; Rext = open (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C Fig. 20. NCR321Z: Output current as a function of output voltage; typical values NCR320Z_NCR321Z 0 Fig. 21. NCR321Z: Output current as a function of enable voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 10 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 aaa-029406 0.07 Iout (A) 0.06 (3) (2) Iout (A) (3) (2) (1) 0.05 aaa-029407 0.3 (1) 0.2 0.04 0.03 0.1 0.02 0.01 0 0 1 2 3 4 VEN (V) 0 5 Vout = 2 V; Rext = 20 (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C 0 1 2 3 4 VEN (V) 5 Vout = 2 V; Rext = 3 (1) Rext = 85 C (2) Rext = 25 C (3) Rext = -40 C Fig. 22. NCR321Z: Output current as a function of enable voltage; typical values Fig. 23. NCR321Z: Output current as a function of enable voltage; typical values aaa-029408 0.3 Iout (A) aaa-029409 4 IEN (mA) (1) (1) 3 (2) (2) 0.2 (3) 2 (3) 0.1 (4) 1 (5) 0 (6) 0 2 4 VEN (V) 6 Vout = 2 V; Tamb = 25 C (1) Rext = 3 (2) Rext = 4 (3) Rext = 6 (4) Rext = 10 (5) Rext = 20 (6) Rext = open 0 0 2 4 VEN (V) 6 Iout = 0 A; Rext = open (1) Tamb = 85 C (2) Tamb = 25 C (3) Tamb = -40 C Fig. 25. NCR321Z: Enable current as a function of enable voltage; typical values Fig. 24. NCR321Z: Output current as a function of enable voltage; typical values NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 11 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 8. Application information Figure 26 shows a typical application circuit for an LED driver. The constant current ensures a constant brightness in all LEDs. The output current can be adjusted between 10 mA and 250 mA by connecting resistor Rext. Figures 7 and 17 give a first indication for choosing the external resitor Rext. The minimum input voltage is given by voltage drop at the LED's VLED and the maximum is governed by the maximum power dissipation VLED + Vout, min < VCC < Ptot /Iout + VLED VCC IEN VEN Iout IOUT REXT Rext GND aaa-029337 Fig. 26. LED driver application diagram NCR321Z can be used for PWM dimming or on/off function by driving the VEN pin. The enable voltage depends on the drive current, see Figure 23. Figure 27 shows a typical application where VEN is driven via a micro directly. To control more than one NCR321Z devices by one microcontroller output, a shift register (for example 74AHC(T)594PW) can be used. VCC C / Logic IEN VEN Iout IOUT REXT Rext GND aaa-029336 Fig. 27. Application diagram: PWM dimming function NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 12 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 To savely drive currents that are above the limits of the NCR32xZ, two or more devices can be parallel connected as illustrated in Figure 28. When choosing the same values for the external resistors, the drive current splits equally and the capability of handling excess power is doubled. Both, NCR320Z and NCR321Z can be used in this configuration. VCC IEN VEN Iout IEN IOUT VEN Iout IOUT REXT REXT Rext GND Rext GND aaa-029364 Fig. 28. Application diagram: Parallelization NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 13 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 9. Package outline Table 9. Package outline Plastic surface-mounted package with increased heatsink; 4 leads D SOT223 E B A X c y HE v M A b1 4 Q A A1 1 2 e1 3 Lp bp w M B detail X e 0 2 4 mm scale DIMENSIONS (mm are the original dimensions) UNIT A A1 bp b1 c D E e e1 HE Lp Q v w y mm 1.8 1.5 0.10 0.01 0.80 0.60 3.1 2.9 0.32 0.22 6.7 6.3 3.7 3.3 4.6 2.3 7.3 6.7 1.1 0.7 0.95 0.85 0.2 0.1 0.1 OUTLINE VERSION REFERENCES IEC JEDEC SOT223 JEITA EUROPEAN PROJECTION ISSUE DATE 04-11-10 06-03-16 SC-73 Fig. 29. Package outline SC-73 (SOT223) NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 14 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 10. Soldering Table 10. Soldering 7 3.85 3.6 3.5 0.3 1.3 1.2 (4x) (4x) solder lands 4 solder resist 3.9 6.1 7.65 solder paste occupied area 1 2 3 Dimensions in mm 2.3 2.3 1.2 (3x) 1.3 (3x) 6.15 sot223_fr Fig. 30. Reflow soldering footprint for SC-73 (SOT223) 8.9 6.7 1.9 solder lands 4 solder resist 6.2 1 2 8.7 Dimensions in mm 3 1.9 (3x) 2.7 occupied area preferred transport direction during soldering 2.7 1.1 1.9 (2x) sot223_fw Fig. 31. Wave soldering footprint for SC-73 (SOT223) NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 15 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 11. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes NCR320Z_NCR321Z v.1 20190204 Product data sheet - - NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 16 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 equipment, nor in applications where failure or malfunction of an Nexperia product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Nexperia and its suppliers accept no liability for inclusion and/or use of Nexperia products in such equipment or applications and therefore such inclusion and/or use is at the customer's own risk. 12. Legal information Data sheet status Document status [1][2] Product status [3] Definition Quick reference data -- The Quick reference data is an extract of the product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Applications -- Applications that are described herein for any of these products are for illustrative purposes only. Nexperia makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Product [short] data sheet Production This document contains the product specification. [1] [2] [3] Please consult the most recently issued document before initiating or completing a design. The term 'short data sheet' is explained in section "Definitions". The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the internet at https://www.nexperia.com. Definitions Draft -- The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Nexperia does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet -- A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. 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Nexperia takes no responsibility for the content in this document if provided by an information source outside of Nexperia. In no event shall Nexperia be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Customers are responsible for the design and operation of their applications and products using Nexperia products, and Nexperia accepts no liability for any assistance with applications or customer product design. It is customer's sole responsibility to determine whether the Nexperia product is suitable and fit for the customer's applications and products planned, as well as for the planned application and use of customer's third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. Nexperia does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer's applications or products, or the application or use by customer's third party customer(s). Customer is responsible for doing all necessary testing for the customer's applications and products using Nexperia products in order to avoid a default of the applications and the products or of the application or use by customer's third party customer(s). Nexperia does not accept any liability in this respect. Limiting values -- Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale -- Nexperia products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nexperia.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Nexperia hereby expressly objects to applying the customer's general terms and conditions with regard to the purchase of Nexperia products by customer. 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Notwithstanding any damages that customer might incur for any reason whatsoever, Nexperia's aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of Nexperia. Right to make changes -- Nexperia reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use in automotive applications -- This Nexperia product has been qualified for use in automotive applications. Unless otherwise agreed in writing, the product is not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 17 / 18 NCR320Z / NCR321Z Nexperia 250 mA LED driver in SOT223 Contents 1. Product profile.............................................................. 1 1.1. General description......................................................1 1.2. Features and benefits..................................................1 1.3. Applications................................................................. 1 1.4. Quick reference data................................................... 2 2. Pinning information......................................................2 3. Ordering information....................................................2 4. Marking.......................................................................... 2 5. Limiting values............................................................. 3 6. Thermal characteristics............................................... 4 7. Characteristics.............................................................. 6 8. Application information............................................. 12 9. Package outline.......................................................... 14 10. Soldering................................................................... 15 11. Revision history........................................................ 16 12. Legal information......................................................17 (c) Nexperia B.V. 2019. All rights reserved For more information, please visit: http://www.nexperia.com For sales office addresses, please send an email to: salesaddresses@nexperia.com Date of release: 4 February 2019 NCR320Z_NCR321Z Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 -- 4 February 2019 (c) Nexperia B.V. 2019. All rights reserved 18 / 18