Constant current source for interior LED lighting | Nexperia

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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
Design resources
Product listing
Support

Block diagram

Highlighted components are Nexperia focus products.

LED driver / Constant current source

Recommended products (1)

NCR family

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

Design resources

Evaluation boards

NEX13120FPC Q100 evaluation board

NEX13120FPC Q100 evaluation board

NEX13120PC Q100 evaluation board

NEX13120PC Q100 evaluation board

NEX40400EVM 12-4-5v to 40v 600ma evaluation board

NEX40400EVM 12-4-5v to 40v 600ma evaluation board

NEVB Logic 01 footprint adapter board

NEVB Logic 01 footprint adapter board

NEVB Logic 02 footprint adapter board

NEVB Logic 02 footprint adapter board

NEVB Logic 03 footprint adapter board

NEVB Logic 03 footprint adapter board

All evaluation boards

Reference designs

ASLxxxxSHN Headlight

ASLxxxxSHN Headlight

All reference designs

Product listing

LED driver / Constant current source

NCR family

Support

Design handbooks

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