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Review 16-Channel Constant Current LED Driver With Ghost Image Abatement

16-Channel Constant Current LED Driver With Ghost Image Abatement

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The MY9168 16-channel constant current LED driver with ghost image abatement is suitable for multiplexing display system. The device has wide supply voltage range (3.3V ~ 5.0V) and provides 16 open-drain constant current sinking outputs that are rated to
Nicht auf Lager (kurzfristig lieferbar)
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Beschreibung

The MY9168 16-channel constant current LED driver with ghost image abatement is suitable for multiplexing display system. The device has wide supply voltage range (3.3V ~ 5.0V) and provides 16 open-drain constant current sinking outputs that are rated to 16V and delivers up to 55mA of high accuracy current to each string of LED. The current at each output is programmable by means of an external current-sensing resistor. The MY9168 features a fast 30MHz DCK input, allowing a wide LED dimming (on/off) range to be implemented. The MY9168 offers a 4-wire serial interface, a 16-bit shift register, and a 16-bit transparent latch. The serial interface allows a micro-controller to configure the output channels using four inputs (DI, DCK, LAT, and ENB) and a data output (DO). DO allows multiple drivers to be cascaded and operated together.

The MY9168’s on-board pass elements minimize the need for external components, while at the same time, providing ±3%(max.) LED current accuracy. Additional features include a ±0.1% regulated output current capability and fast output transient response.

The MY9168 is available in a 24-pin SOP/SSOP/QFN package and specified over the -40°C to +85°C ambient temperature range.