NSV45090JDT4G

• Single-Channel Adjustable Constant Current Regulator for LED Strings
• Maximum DC Input Voltage of 45V
• Output Current Regulated to a Maximum of 160mA
• Power Dissipation Rating of 2.713W
• Wide Operating Temperature Range of -55°C to 150°C
• Surface-Mount 3-Pin TO-252 Package on Tape and reel, 2500 Pieces per reel, Lead Free and RoHS Compliant

The onsemi NSV45090JDT4G is a single-channel adjustable constant current regulator for driving LEDs, from the NSV45090JD series. It accepts a DC input up to 45V and regulates output current to a maximum of 160mA, with its product title giving an adjustable range of 90mA to 160mA. The NSV45090JDT4G is supplied in a surface-mount 3-pin TO-252 package on tape and reel in 2500-piece quantities and operates from -55°C to 150°C.

LEDs need constant current rather than constant voltage, because their forward voltage shifts with temperature and between production lots, so a fixed drive voltage would let the current drift and the brightness with it. A linear constant current regulator such as the NSV45090JDT4G does the job with one external resistor and no inductor or switching node, so it generates no switching interference, which is why it is favoured in automotive lighting and in any design sitting near a radio receiver. Its 45V input ceiling suits series LED strings on 12V, 24V, and 48V rails, covering automotive exterior and interior lighting, signage and channel letters, architectural and industrial fixtures, and appliance indicators. Typical buyers are automotive lighting suppliers and LED fixture and signage manufacturers.