MOSDESIGN SEMICONDUCTOR CORP.
4-CHANNEL LED DIMMER DRIVER
The M1357 is a monolithic, 4-channel NMOS PWM LED drivers Controller can also be directly programmed through an Serial
Bus Micro-Processor Interface for applications where user defined LED pattern, color, and intensity programmability is a priority.
Optimized for dimming LEDs in 256 discrete steps for Red/Green/Blue (RGB) color mixing and back light applications.
The M1357 includes an internal oscillator , four individual PWM color LED drivers and The open drain outputs directly drive
the LEDs with constant sink current of 15mA per bit.
‧ 4 open drain outputs directly drive LEDs
‧ Constant sink current of 15mA per bit
‧ 256 brightness steps
‧ A0~A3 is External address selection.
‧ Internal oscillator requires no external components
‧ Controlled by Serial Bus Micro-Processor Interface
‧ Internal power-on reset
‧ Noise filter on SCL/SDA inputs
‧ True color LED display driver
8-bit PWM 8-bit PWM 8-bit PWM
Serial Bus Decoder & Latch
A0 A1 A2 A3