ICN2037(Constant Current Driver)

2020-03-25 09:16:36 Deanled 432


16-Channel Constant Current LED Sink Driver with Dual Latch


The ICN2037 is a 16-channel constant current sink output LED driver. All 16-channels constant current can be set by a single external resistor, which provides users flexibility in controlling the light intensity of LEDs.

The ICN2037 exploits current precision controlling technology,which makes error between ICs less than ±2.5%, and error between channels less than ±3.0%. At ICN2037 output stage16-regulated output ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of forward voltage(VF) variations.

ICN2037 contains two 16-bit shift registers and latches which convert serial input data into parallel output format. For integrated dual latch, ICN2037 could get higher refresh rate.


•  16-channel constant current output

•  Output current setting range:

          3~45mA×16@VDD=5V constant current output

          3~30mA×16@VDD=3.3Vconstant current output

  Current accuracy

          Between channel :< ±3.0%

          Between ICs :< ± 2.5%

  Fast response of output current,

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  I/O: Schmitt trigger input

  Data transfer frequency:fMAX=30MHz(Max)

  Power supply voltage: VDD=3.3~5V

  Operating Temperature: –40°C to +85°C

  Pre-Charge for Ghosting Reduction

  LED Protection

  Enhanced Circuit for Caterpillar Cancelling

  Low-Gray Scale Enhancement

  Integrated Dual Latch for higher refresh rate


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