NXP has just released the first 20 mA and 50 mA LED drivers, NCR402U and NCR405U. These devices consist of a resistor-equipped PNP transistor with two diodes on one chip, housed in an SOT457 (SC-74) plastic package. Our new automotive qualified products offer an efficient solution for constant current supply in LEDs ranging from 20 mA to 50 mA (up to 65 mA when an external resistor is used).
LED lighting is already widely used in diverse automotive, white good and consumer applications. And the market is expected to grow even further with LED lights offering long-term reliability, improved brightness and lower power consumption compared to other alternative lighting solutions.
Features and benefits
- Stabilized output current of 20 mA and 50 mA
- High current accuracy at supply voltage variation
- Low voltage overhead of 1.4 V
- Qualified according to AEC-Q101
- Reduces component count and board space
- High power dissipation of 750 mW
- Stabilized output current adjustable up to 65 mA when an external resistor is used
Applications
- Constant current LED driver
- Generic constant current source
- Automotive applications
