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NCR420Z

nexperia
Part Number NCR420Z
Manufacturer nexperia
Description 150mA LED driver
Published Jul 20, 2019
Detailed Description NCR420Z / NCR421Z 150 mA LED driver in SOT223 Rev. 1 — 4 February 2019 Product data sheet 1. Product profile 1.1. Gen...
Datasheet PDF File NCR420Z PDF File

NCR420Z
NCR420Z

Overview
NCR420Z / NCR421Z 150 mA LED driver in SOT223 Rev.
1 — 4 February 2019 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 a medium power SOT223 (SC73) plastic package.
Table 1.
Product overview Type number Package Nexperia NCR420Z SOT223 NCR421Z SOT223 JEITA SC-73 SC-73 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 1250 mW • Supply voltage up to 40 V • Digital PWM input up to 10 kHz frequency for NCR421Z • 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 Nexperia NCR420Z / NCR421Z 150 mA LED driver in SOT223 1.
4.
Quick reference data Table 2.
Quick reference data Symbol Parameter VEN enable voltage NCR420Z NCR421Z Vout output voltage Iout stabilized output current NCR420Z NCR421Z [1] Pulse test: tp ≤ 300 µs; δ ≤ 0.
02 Conditions Vout= 1.
4 V; VEN= 24 V Vout= 1.
4 V; VEN= 3.
3 V Min Typ Max Unit - - 40 V - - 4.
5 V - - 40 V [1] 9 [1] 9 10 11 mA 10 11 mA 2.
Pinning information Table 3.
Pinning Pin Symbol 1 VEN 2 REXT 3 GND 4 IOUT Description enable voltage external resistor ground output current Simplified outline 4 123 Symbol IOUT VEN REXT GND aaa-029430 3.
Ordering information Table 4.
Ordering information Type number Package Name Description NCR420Z SC-73 plastic surface-mounted package with increased heatsink; 4 leads NCR421Z SC-73 plastic surface-mounted package with increased heatsink; 4 leads Version SOT223 SOT223 4.
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