16-Channel LED Driver With 16bits grayscale Adaptive Pulse Density Modulation & Power Saving Control
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The MY9262, 16-channel constant current LED driver with 16bits grayscale Adaptive Pulse Density Modulation (APDM) and power saving control, supports high quality LED video display applications. This distinctive APDM technology abates the non-ideal IOUT distortion due to non-symmetric transient responses and enhances the refresh rate by separating efficiently the frame waveform.
The MY9262 features a fast 30MHz DCK input, allowing a wide LED dimming (on/off) range to be implemented. This 4-wire serial interface allows a microcontroller to configure the output channels using four inputs (DI, DCK, LAT, and GCK) and a data output (DO). DO allows multiple drivers to be cascaded and operated together.
The device operates over a 3V to 5.5V input voltage range and provides 16 open-drain constant current sinking outputs that are rated to 17V and delivers up to 45mA of high accuracy current to each string of LED. The current at each output is programmable by means of an external current-sensing resistor and could be adjusted by 6bits global current control. Furthermore, the MY9262 also supports the grayscale synchronization by two functions of counter reset and data synchronization. And the sleep mode could efficiently lower down the supply current in power saving applications.
The MY9262 is available in a 24-pin SOP/SSOP/TSSOP/ QFN package and specified over the -40°C to +85°C ambient temperature range.
|Sales Manager||Josef Röger|