NCR420PAS / NCR421PAS

150 mA LED driver in DFN2020D-6

Rev. 1 — 13 May 2020

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 leadless

medium power DFN2020D-6 (SOT1118D) Surface-Mounted Device (SMD) plastic package with

visible and solderable side pads.

Table 1. Product overview

Package

Type number

Name

Version

NCR420PAS

NCR421PAS

DFN2020D-6

SOT1118D

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 530 mW

• Supply voltage up to 40 V

• Digital PWM input up to 10 kHz frequency for NCR421PAS

• 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