双极性晶体管

二极管

ESD保护、TVS、滤波和信号调节ESD保护

MOSFET

氮化镓场效应晶体管(GaN FET)

绝缘栅双极晶体管(IGBTs)

模拟和逻辑IC

汽车应用认证产品(AEC-Q100/Q101)

Constant current source for interior LED lighting

Highly efficient and compact, LEDs have become the de-facto choice for interior lighting applications, from cluster backlighting to mood lighting. However, LEDs are sensitive to operating current so, for any single or string system, a constant steady state current is vital. That’s why constant current source devices make the ideal solution for driving LEDs in the electrically noisy environment of vehicles. Our space-saving NCR series complements the efficiency of LEDs perfectly with accurate and stable outputs.

  • Block diagram
  • Design considerations
  • Product listing
  • Support

Block diagram

V+ aaa-026474 Highlighted components are Nexperia focus products.

LED driver / Constant current source

Select a component

To view more information about the Nexperia components used in this application, please select a component above or click on a component (highlighted in blue) in the block diagram.

Design considerations

  • Individually dimmable LED control
  • Accurate LED current control
  • Compact package (SOT23 / SOT457)
  • High efficiency driver design
  • Low EMI solution using small scale highly integrated package technology
  • Maximum drain current: 10 to 50 mA

Product listing

LED driver / Constant current source