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| BD9422EFV Datasheet, PDF (23/28 Pages) Rohm – White LED Driver for large LCD panel | |||
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BD9422EFV
Datasheet
â3.8.4 About LED SHORT detection
LED SHORT detection donât work by individual ch. The followings are needed for detection.
ã»Detection channel is PWM=H and LED terminal voltage is over LED SHORT detection threshold voltage.
ã»Except for detection ch, any 1ch is PWM=H and LED terminal voltage is under 3V.
ã»The above-mentioned 2 states continue over 4clk of DCDC oscillation frequency.
Detection sequence is the followings.(omit 4clk mask)
Figure 31.
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TSZ02201-0F1F0C100210-1-2
31.May.2013 Rev.003
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