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    Reference designs
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    Interactive application notes
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    • IAN50001 - Reverse battery protection in automotive applications
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    • IAN50003 - Driving solenoids in automotive applications
    • IAN50004 - Using power MOSFETs in DC motor control applications
    • IAN50005 - Paralleling power MOSFETs in high power applications
    • IAN50006 - Power MOSFETs in linear mode
    • IAN50007 - Conducted battery line transients
    • IAN50009 - Power MOSFET applications in automotive BLDC and PMSM drives
    • IAN50016 - MOSFETs for airbag applications
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LED driver / Constant current source

Cost-efficient, reliable and easy to use

Our linear constant current LED drivers are a simple and robust solution to drive low- and medium-power LEDs up to 250 mA – making up the vast majority of applications in the growing LED market. The AEC-Q101 qualified NCR devices are easy-to-use, reliable, cost efficient, and do not affect EMC. Reducing board space and component count, they provide stabilized output currents of 10-50 mA. The LED driver / constant current source are available in five package options: SOT23, SOT353, SOT457, SOT223 and DFN2020D-6.

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Features

  • High current accuracy
  • High power capability (up to 1250mW) for increased robustness
  • Supply voltage up to 75V
  • Parallel drivers can be used to increase the current capability
  • AEC-Q101 qualified
  • Tj = 150°
  • Leadless package option with sidewettable flanks for automatic optical inspection (AOI)
  • Space-saving and future proof
  • Easy to implement 
  • Multi-sourcing capable

Applications

  • Constant current source
  • General & Industrial Lighting
  • Consumer Electronics
  • Automotive interior and exterior lighting
    (Door handles, Dashboard, Number plate light, Indicators, Rear lights)

Latest news and blogs

  • Press release
Oct 12, 2020

Nexperia launches industry-first LED drivers in DFN ...

  • Press release
Mar 26, 2019

New automotive qualified constant current LED ...

Latest videos

Introducing Nexperia LED drivers (bipolar constant current source)

Introducing Nexperia LED drivers (bipolar constant current ...

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LED driver / Constant current source
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  • The common characteristics are parameters with the same value for all type numbers.
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Products

Type number Description Status Quick access
NCR320PAS 250 mA LED driver in DFN2020D-6 Production
  • Download datasheet
NCR320U 250 mA LED driver in SOT457 Production
  • Download datasheet
NCR320Z 250 mA LED driver in SOT223 Production
  • Download datasheet
NCR321PAS 250 mA LED driver in DFN2020D-6 Production
  • Download datasheet
NCR321U 250 mA LED driver in SOT457 Production
  • Download datasheet
NCR321Z 250 mA LED driver in SOT223 Production
  • Download datasheet
NCR401T 10 mA LED driver in SOT23 Production
  • Download datasheet
  • Samples
NCR401U 10 mA LED driver in SOT457 Production
  • Download datasheet
  • Samples
NCR402T 20 mA LED driver in SOT23 Production
  • Download datasheet
  • Samples
NCR402U 20 mA LED driver in SOT457 Production
  • Download datasheet
  • Samples
NCR405U 50 mA LED driver in SOT457 Production
  • Download datasheet
  • Samples
NCR420PAS 150 mA LED driver in DFN2020D-6 Production
  • Download datasheet
NCR420U 150 mA LED driver in SOT457 Production
  • Download datasheet
NCR420Z 150 mA LED driver in SOT223 Production
  • Download datasheet
NCR421PAS 150 mA LED driver in DFN2020D-6 Production
  • Download datasheet
NCR421U 150 mA LED driver in SOT457 Production
  • Download datasheet
NCR421Z 150 mA LED driver in SOT223 Production
  • Download datasheet
PSSI2021SAY Constant current source in SOT353 package Production
  • Download datasheet
  • Samples
Visit our documentation center for all documentation

Application note (1)

File name Title Type Date
AN90026 LED drivers Application note 2021-02-12

Leaflet (2)

File name Title Type Date
Nexperia_document_factsheet_LED_Driver_2020_CHN LED Driver Factsheet CHN Leaflet 2020-08-20
Nexperia_document_factsheet_LED_Driver_2020 Constant current LED Drivers Leaflet 2020-08-18

Marcom graphics (1)

File name Title Type Date
SOT457_mk plastic, surface-mounted package (SC-74) Marcom graphics 2018-11-26

Selection guide (1)

File name Title Type Date
Nexperia_Selection_guide_2022 Nexperia Selection Guide 2022 Selection guide 2022-01-05

White paper (1)

File name Title Type Date
Nexperia_document_whitepaper_Constant-current-LED-drivers_201911 Constant current LED drivers - Cost efficient, reliable, and easy to use White paper 2019-11-13

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