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PT6955 V1.5

- 8 -

June, 2005

LED Driver IC

PT6955

COMMAND 4: DISPLAY CONTROL COMMANDS

The Display Control Commands are used to turn ON or OFF a display. It also used to set the pulse

width. Please refer to the diagram below. When the power is turned ON, a 1/16 pulse width is selected

and the displayed is turned OFF.

MSB

LSB

1

0

-

-

b3 b2 b1 b0

Not Relevant

Dimming Quantity Settings:

000: Pulse width = 1/16

001: Pulse width = 2/16

010: Pulse width = 4/16

011: Pulse width = 10/16

100: Pulse width – 11/16

101: Pulse width = 12/16

110: Pulse width = 13/16

111: Pulse width = 14/16

Display Settings:

0: Display Off

1: Display On