Overview: NSL21630/1
3 Channel 200mA/CH Automotive Linear LED
Driver with Thermal Balancing
Datasheet (EN) 1.0 Product Overview
The NSL21630/1 is an automotive-grade three-channel linear constant current LED driver, with up to 200mA current capability per channel. Wide supply voltage up to 40V enables NSL21630/1 a good fit for automotive battery directly powered application. For linear-type constant current LED driver, thermal dissipation limit is a mon issue to prevent it to be applicable for larger current or more channel-counts conditions. By implementing a unique thermal balancing design, the NSL21630/1 device is able to enlarge the output current capability with an automatic power balancing loop between the output channel and the external shunt resistor. It can address the thermal dissipation limit issue effectively with the majority of power conducted on the external shunt resistor, instead of the device itself. The NSL21630/1 is able to support full diagnostics including the LED open-load and short-to-GND detection. With different FAULT bus connections, the NSL21630/1 can realize either “all off if one fails” or “others remain on if one fails”.
