ICN2053(Constant Current Driver)

2020-03-25 09:15:54 Deanled 456


16-Channel PWM Constant Current LED Sink Driver


The ICN2053 is a 16-channel PWM constant current sink LED driver for 1:32 time multiplexing applications. The constant-current value of all 16 channels is set by a single external resistor.

ICN2053 converts serial input date into the gray scale of each pixel by a 16-bit shift register.ICN2053 detects individual LED open errors without extra components. ICN2053 also integrated pre-charge circuit for ghosting reduction.

The ICN2053 exploits precise current regulation technology, with both channel-to-channel error and chip-to-chip error less than ±2.0%.


  •  16 constant-current output channels

  Support time-multiplexing for 1~32 scans

  Output current setting range:

 0.5~25mA×16@VDD=5V constant current output

 0.5~18mA×16@VDD=4.2V constant current output

 0.5~10mA×16@VDD=3.3V constant current output

  Current accuracy

    Between channel :< ±2.0 %(Max.)

    Between ICs :< ±2.0 % (Max.)

  8 bit current gain:12.5%~200%

  Fast response of output current:

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  •  Data transfer frequency: fMAX=35MHz(Max)

  Power supply voltage: VDD=3.3~5V

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

  Output current equation

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  Pre-charge for ghosting reduction

  LED open detection

  Enhanced Circuit for Caterpillar Cancelling

  Low-gray scale enhancement

  Integrating LED protection circuit


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