NCR421UX

NCR420U / NCR421U 150 mA LED driver in SOT457 Rev. 1 — 10 December 2018 Product data sheet 1. Product profile 1.1. General description LED driver consisting of resistor-equipped NPN transistor with two diodes on one chip in an SOT457 (SC-74; TSOP6) plastic package. Table 1. Product overview Type number Package Nexperia JEITA NCR420U SOT457 SC-74; TSOP6 NCR421U SOT457 SC-74; TSOP6 1.2. Features and benefits • • • • • • • • • Stabilized output current of 10 mA without external resistor Stabilized output current adjustable up to 150 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 750 mW Supply voltage up to 40 V Digital PWM input up to 10 kHz frequency for NCR421U 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 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 1.4. Quick reference data Table 2. Quick reference data Symbol Parameter Min Typ Max Unit NCR420U - - 40 V NCR421U - - 4.5 V Vout output voltage - - 40 V Iout stabilized output current VEN [1] Conditions enable voltage NCR420U Vout= 1.4 V; VEN= 24 V [1] 9 10 11 mA NCR421U Vout= 1.4 V; VEN= 3.3 V [1] 9 10 11 mA Pulse test: tp ≤ 300 µs; δ ≤ 0.02 2. Pinning information Table 3. Pinning Pin Symbol Description 1 VEN enable voltage 2 IOUT output current 3 IOUT output current 4 GND ground 5 IOUT output current 6 REXT external resistor Simplified outline 6 5 4 1 2 3 Symbol REXT IOUT GND VEN IOUT IOUT SC-74; TSOP6 (SOT457) aaa-029361 3. Ordering information Table 4. Ordering information Type Package number Name Description Version NCR420U SC-74; TSOP6 plastic surface-mounted package; 6 leads SOT457 NCR421U SC-74; TSOP6 plastic surface-mounted package; 6 leads SOT457 4. Marking NCR420U_NCR421U Product data sheet Table 5. Marking codes Type number Marking code NCR420U L6 NCR421U L7 All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 2 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 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 - 200 mA VEN enable voltage NCR420U - 40 V NCR421U - 4.5 V Vout output voltage - 40 V VR reverse voltage [1] - 0.5 V Ptot total power dissipation [2] - 475 mW [3] - 650 mW [4] - 750 mW [5] - 1100 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 (35 µm), tin-plated and standard footprint. Device mounted on an FR4 Printed-Circuit Board (PCB), single-side copper (35 µm), 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 . 1.2 Ptot (W) aaa-029338 (1) 0.9 (2) (3) 0.6 (4) 0.3 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 (35 µm), 1 cm (4) FR4 PCB, single-sided copper (35 µm), standard footprint Fig. 1. NCR420U_NCR421U Product data sheet Power derating curve All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 3 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 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] - - 265 K/W [2] - - 190 K/W [3] - - 165 K/W [4] - - 115 K/W - - 50 K/W thermal resistance from junction to solder point Device mounted on an FR4 PCB, single-sided copper (35 µm), tin-plated and standard footprint. Device mounted on an FR4 PCB, single-sided copper (35 µm), 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-010054 103 Zth(j-a) (K/W) 102 duty cycle = 1 0.75 0.5 0.33 0.2 0.1 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-010055 103 Zth(j-a) (K/W) 102 duty cycle = 1 0.75 0.5 0.33 0.2 0.1 10 0.05 0.02 0.01 1 10-5 0 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. 3. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 4 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 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 40 - - V hFE DC current gain VCE =1 V; IC = 50 mA 350 - Rint internal resistor IRint = 10 mA 95 105 Ω VRint voltage drop at internal resistor Rint Iout = 10 mA [1] 0.85 0.95 1.05 V IEN enable current NCR420U VEN = 24 V [1] - 1.2 - mA NCR421U VEN =3.3 V [1] - 1.2 - mA NCR420U - 20 - kΩ NCR421U - 1.5 - kΩ RB 85 bias resistor Iout stabilized output current Iout NCR420U VEN = 24 V; Vout = 1.4 V [1] 9 10 11 mA NCR421U VEN = 3.3 V; Vout = 1.4 V [1] 9 10 11 mA NCR420U at Rext = 5.1 Ω VEN = 24 V; Vout > 2 V [1] - 150 - mA NCR421U at Rext = 5.1 Ω VEN = 3.3 V; Vout > 2 V [1] - 150 - mA - 1.4 - V stabilized output current Vout, min lowest sufficient output voltage overhead: Vout = VCC - VLED ΔIout/(Iout x ΔTamb) stabilized output current change over ambient temperature ΔIout/(Iout x ΔVCC) [1] [1] 200 Iout> 10 mA NCR420U VEN = 24 V; Vout > 2 V [1] - -0.27 - %/K NCR421U VEN = 3.3 V; Vout > 2 V [1] - -0.27 - %/K stabilized output current change over supply voltage NCR420U VEN = 24 V; Vout > 2 V [1] - 1 - %/V NCR421U VEN = 3.3 V; Vout > 2 V [1] - 1 - %/V Pulse test: tp ≤ 300 μs; δ ≤ 0.02. NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 5 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 aaa-029339 0.20 aaa-029436 0.25 Iout (A) Iout (A) (2) 0.20 0.15 (1) (1) 0.15 (2) 0.10 (3) 0.10 (4) 0.05 (5) 0.05 (6) 0 0 4 8 Vout (V) 1 10 Rext 102 VEN = 40 V; Tamb = 25 °C (1) Vout = 1.4 V (2) Vout = 5.4 V VEN = 40 V; Tamb = 25 °C (1) Rext = 6 Ω (2) Rext = 8 Ω (3) Rext = 10 Ω (4) Rext = 15 Ω (5) Rext = 30 Ω (6) Rext = open Fig. 4. 0 12 Fig. 5. NCR420U: Output current as a function of external resistor; typical values NCR420U: Output current as a function of output voltage; typical values aaa-029341 0.015 Iout (A) (3) (3) (2) (1) 0.05 (2) 0.010 aaa-029342 0.07 Iout (A) 0.06 0.04 (1) 0.03 0.005 0.02 0.01 0 0 4 8 Vout (V) 0 12 VEN = 40 V; Rext = open (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Fig. 6. Product data sheet 4 8 Vout (V) 12 VEN = 40 V; Rext = 20 Ω (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C NCR420U: Output current as a function of output voltage; typical values NCR420U_NCR421U 0 Fig. 7. NCR420U: Output current as a function of output voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 6 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 aaa-029343 0.20 Iout (A) aaa-029344 0.015 Iout (A) 0.15 (3) (2) (1) (3) 0.010 (2) (1) 0.10 0.005 0.05 0 0 4 8 Vout (V) 0 12 VEN = 40 V; Rext = 6 Ω (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Fig. 8. aaa-029345 20 VEN (V) 30 Fig. 9. NCR420U: Output current as a function of enable voltage; typical values aaa-029346 0.20 Iout (A) (3) 0.15 (2) 0.05 10 Vout = 2 V; Rext = open (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C NCR420U: Output current as a function of output voltage; typical values 0.07 Iout (A) 0.06 0 (3) (2) (1) (1) 0.04 0.10 0.03 0.02 0.05 0.01 0 0 10 20 VEN (V) 30 Vout = 2 V; Rext = 20 Ω (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Product data sheet 0 10 20 VEN (V) 30 Vout = 2 V; Rext = 6 Ω (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Fig. 10. NCR420U: Output current as a function of enable voltage; typical values NCR420U_NCR421U 0 Fig. 11. NCR420U: Output current as a function of enable voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 7 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 aaa-029347 0.15 (1) Iout (A) IEN (mA) (2) 0.10 aaa-029348 3 2 (3) (1) (2) (3) 0.05 1 (4) (5) (6) 0 0 10 20 VEN (V) 0 30 Vout = 2 V; Tamb = 25 °C (1) Rext = 6 Ω (2) Rext = 8 Ω (3) Rext = 10 Ω (4) Rext = 30 Ω (5) Rext = 60 Ω (6) Rext = open 0 10 20 30 VEN (V) 40 Iout = 0 A; Rext = open (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Fig. 13. NCR420U: Enable current as a function of enable voltage; typical values Fig. 12. NCR420U: Output current as a function of enable voltage; typical values aaa-029349 0.20 Iout (A) aaa-029437 0.20 (2) Iout (A) 0.15 (1) 0.15 (1) (2) 0.10 0.10 (3) (4) 0.05 0 0.05 (5) (6) 0 4 8 Vout (V) 12 VEN = 3.3 V; Tamb = 25 °C (1) Rext = 6 Ω (2) Rext = 8 Ω (3) Rext = 10 Ω (4) Rext = 15 Ω (5) Rext = 30 Ω (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. 15. NCR421U: Output current as a function of external resistor; typical values Fig. 14. NCR421U: Output current as a function of output voltage; typical values NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 8 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 aaa-029351 0.015 Iout (A) (3) 0.010 (2) aaa-029352 0.06 (3) (2) (1) Iout (A) 0.04 (1) 0.005 0 0.02 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 VEN = 3.3 V; Rext = 20 Ω (1) Rext = 85 °C (2) Rext = 25 °C (3) Rext = -40 °C Fig. 16. NCR421U: Output current as a function of output voltage; typical values aaa-029353 0.20 Iout (A) Fig. 17. NCR421U: Output current as a function of output voltage; typical values aaa-029354 0.015 Iout (A) 0.15 Vout (V) (3) (2) (1) (3) 0.010 (2) (1) 0.10 0.005 0.05 0 0 4 8 Vout (V) 12 VEN = 3.3 V; Rext = 6 Ω (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. 18. NCR421U: Output current as a function of output voltage; typical values NCR420U_NCR421U 0 Fig. 19. NCR421U: Output current as a function of enable voltage; typical values All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 9 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 aaa-029355 0.06 (3) (2) (1) Iout (A) aaa-029356 0.20 Iout (A) 0.15 (3) (2) (1) 0.04 0.10 0.02 0.05 0 0 1 2 3 4 VEN (V) 0 5 Vout = 2 V; Rext = 20 Ω (1) Rext = 85 °C (2) Rext = 25 °C (3) Rext = -40 °C 0 1 2 3 4 VEN (V) 5 Vout = 2 V; Rext = 6 Ω (1) Rext = 85 °C (2) Rext = 25 °C (3) Rext = -40 °C Fig. 20. NCR421U: Output current as a function of enable voltage; typical values Fig. 21. NCR421U: Output current as a function of enable voltage; typical values aaa-029357 0.15 (1) Iout (A) aaa-029358 3 IEN (mA) (2) 0.10 (1) 2 (3) (2) (3) 0.05 1 (4) (5) (6) 0 0 1 2 3 4 VEN (V) 5 Vout = 2 V; Tamb = 25 °C (1) Rext = 6 Ω (2) Rext = 8 Ω (3) Rext = 10 Ω (4) Rext = 30 Ω (5) Rext = 60 Ω (6) Rext = open 0 0 1 2 3 4 VEN (V) 5 Iout = 0 A; Rext = open (1) Tamb = 85 °C (2) Tamb = 25 °C (3) Tamb = -40 °C Fig. 23. NCR421U: Enable current as a function of enable voltage; typical values Fig. 22. NCR421U: Output current as a function of enable voltage; typical values NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 10 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 8. Application information Figure 24 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 150 mA by connecting resistor Rext. Figures 5 and 15 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. 24. LED driver application diagram NCR421U 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 21. Figure 25 shows a typical application where VEN is driven via a micro directly. To control more than one NCR421U devices by one microcontroller output, a shift register (for example 74AHC(T)594PW) can be used. VCC µC / Logic IEN VEN Iout IOUT REXT Rext GND aaa-029336 Fig. 25. Application diagram: PWM dimming function NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 11 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 To savely drive currents that are above the limits of the NCR42xU, two or more devices can be parallel connected as illustrated in Figure 26. When choosing the same values for the external resistors, the drive current splits equally and the capability of handling excess power is doubled. Both, NCR420U and NCR421U can be used in this configuration. VCC IEN VEN Iout IEN IOUT VEN Iout IOUT REXT REXT Rext GND Rext GND aaa-029364 Fig. 26. Application diagram: Parallelization NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 12 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 9. Package outline Table 9. Package outline Plastic surface-mounted package (TSOP6); 6 leads D SOT457 B E y A X HE 6 5 v M A 4 Q pin 1 index A A1 1 2 c 3 Lp e bp w M B detail X 0 1 2 mm scale DIMENSIONS (mm are the original dimensions) UNIT A A1 bp c D E e HE Lp Q v w y mm 1.1 0.9 0.1 0.013 0.40 0.25 0.26 0.10 3.1 2.7 1.7 1.3 0.95 3.0 2.5 0.6 0.2 0.33 0.23 0.2 0.2 0.1 OUTLINE VERSION REFERENCES IEC JEDEC JEITA SOT457 EUROPEAN PROJECTION ISSUE DATE 05-11-07 06-03-16 SC-74 Fig. 27. Package outline SC-74; TSOP6 (SOT457) NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 13 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 10. Soldering Table 10. Soldering 3.45 1.95 0.45 0.55 (6×) (6×) 0.95 solder lands solder resist 3.3 2.825 0.95 solder paste occupied area 0.7 (6×) Dimensions in mm 0.8 (6×) 2.4 sot457_fr Fig. 28. Reflow soldering footprint for SC-74; TSOP6 (SOT457) 5.3 1.5 (4×) solder lands 1.475 0.45 (2×) 5.05 1.475 solder resist occupied area Dimensions in mm preferred transport direction during soldering 1.45 (6×) 2.85 sot457_fw Fig. 29. Wave soldering footprint for SC-74; TSOP6 (SOT457) NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 14 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 11. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes NCR420U_NCR421U v.1 20181210 Product data sheet - - NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 15 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 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. For detailed and full information see the relevant full data sheet, which is available on request via the local Nexperia sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between Nexperia and its customer, unless Nexperia and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the Nexperia product is deemed to offer functions and qualities beyond those described in the Product data sheet. Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, Nexperia does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. 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. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities. Translations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions. Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 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 NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 16 / 17 NCR420U / NCR421U Nexperia 150 mA LED driver in SOT457 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.............................................................. 5 8. Application information............................................. 11 9. Package outline.......................................................... 13 10. Soldering................................................................... 14 11. Revision history........................................................ 15 12. Legal information......................................................16 © Nexperia B.V. 2018. 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: 10 December 2018 NCR420U_NCR421U Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 10 December 2018 © Nexperia B.V. 2018. All rights reserved 17 / 17