Preliminary

WS2803

18-Channel Constant Current LED Driver

With Programmable PWM Outputs

7/8

The Connection and Driving of Cascading Operation

The transmit the data over long distance by cascading, the WS2803 integrates push-pull output stage with strong

driving capability which enables the data and clock can be transmitted up to 6 meters at 2MHz clock frequency.

To prevent the reflection, it is necessary to connect a 50Ω resistor at the data input or output port for impedance match.

Package Information

SOP-28 package (Unit:mm)

Fig 6.a SOP-28

WS-Preliminary-V0.1

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