NCR320U / NCR321U
250 mA LED driver in SOT457
Rev. 1 — 11 December 2018
Product data sheet
1. Product profile
1.1. Ge...
NCR320U / NCR321U
250 mA LED driver in SOT457
Rev. 1 — 11 December 2018
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 an SOT457 (SC-74; TSOP6) plastic package.
Table 1. Product overview Type number
NCR320U NCR321U
Package Nexperia SOT457 SOT457
JEITA SC-74; TSOP6 SC-74; TSOP6
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 750 mW Supply voltage up to 16 V Digital PWM input up to 10 kHz frequency for NCR321U AEC-Q101 qualified
1.3. Applications
Constant current LED driver Generic constant current source Automotive applications (for example: interior lighting, ...