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 Click picture to enlarge |
General Description:
The WD310, 3-channel constant current 12-bit grayscale APDM (Adaptive Pulse Density Modulation) control LED driver. The current is programmable by one external current-sensing resistor and each output can be adjusted by 7-bit dot correction. The WD310 also offers a 2-wire serial interface to send the grayscale data, dot correction data, grayscale clock frequency division selection, output polarity selection for high power LED driving and to realize the auto-latch function. Moreover, WD310 utilizes clock duty recovery technique to help long distance and multiple cascading applications.
Features:
● 12-bit grayscale APDM control
● 5V/12V Operating supply voltage
● 2-wire serial interface
● Clock duty recovery for cascading application
● 50mA (max.) Constant current output
● 17V Rated output channels for long LED strings
● 20KHz (min.)~10MHz(max.) clock frequency for EMI reduction data transfer
● Built-in grayscale clock: 8.6MHz (max.)
● Grayscale clock frequency selection for High Power LED driving
● Built-in internal grayscale clock supports refresh rate > 1000Hz
● Current setting by one external resistor
● 7-bit dot correction
● ±1% (typ.) LED Current accuracy between channels
● ±1% (typ.) LED Current accuracy between chips
● -40°C to +85°C Ambient temperature range
Applications:
● Indoor and Outdoor LED Video Displays
● Full Color Mesh Display
● R/G/B Channel Letter
● Architectural and Decorative Lighting
WD310 Application: (Click picture to enlarge)
 Download detailed specifications
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