Product Descriptions

DM412 is a PWM enabled LED driver specifically designed for LED video display or lighting applications.  Each  channel  has  linear  adjustable  16-bits  (65536  steps)  grayscale  PWM  control  current outputs. It incorporates shift registers, data latches, 3-channel constant current circuitry with current  value  set  by  3  external  resistors,  and  built-in  oscillator  for  PWM  functioning.  Data,  clock,  and latch buffer outputs are designed for cascading another chip. Its built-in open detection function help  users  locate  LED  failures  without  additional  circuits.  The  output  polarity  reverse  function  is  designed for more high power LED applications.

Product Features

z Maximum constant current outputs: 200mA determined by three external resistors

z Maximum sinking output voltage: 17V

z Maximum serial-in clock frequency: 20 MHz

z 16-bit linear PWM control current outputs

z Built-in buffers for cascading clock, data, and strobe to next driver

z PWM free-running capability (refresh rate (~ 267Hz) with internal oscillator (~ 17.5 MHz))

z Selectable auto/manual strobe (Patent pending)

z LED open detection

z Output polarity reverse function

z Power supply voltage: 4V ~ 5.5V

Product Applications

z LED Decorative Lighting

z Indoor/Outdoor LED Video or Message Display

z PWM Signal Generator

Specifications

Actual product photos

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Official Certificate&Certificate

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