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DM132
16-Channel PWM-Controlled Constant Current Driver
for LED Displays
General Description
The DM132 is a LED driver incorporating shift registers, data latches, 16-channel constant current circuitry with current value set by an external resistor, 1024 gray level PWM (Pulse Width Modulation) functional unit and time division capability. Each channel can provide a maximum current of 60 mA. Time division operation allows driving up to 1 or 2 LEDs with a single output channel (mode-1 and mode-2 respectively).
Features
˙Constant current outputs with current value settings by an external resistor
˙ Maximum output current: 60 mA
˙ Time division output allows the driving of 1 or 2 LEDs with a single output
˙ Maximum / minimum output voltage: 20V / 1.1V
˙ 10 bits luminance data with PWM current outputs
˙ Serial shift-in architecture for luminance data in time division Mode 1 and Mode 2