BD9285F ROHM [Rohm], BD9285F Datasheet - Page 31

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BD9285F

Manufacturer Part Number
BD9285F
Description
Boost 1channel white LED driver For large LCDs
Manufacturer
ROHM [Rohm]
Datasheet

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Datasheet
BD9285F
3.7.6 the SCP detection
(*1)…During the soft start, the detection of SCP is masked.
(*2)…As SCP is detected, the output GATE=L, DIMOUT=L, and the CP counter starts
(*3)…If SCP is released within 4096 clock of CP counter of the GATE pin frequency, the boost operation restarts.
(*4)…As the SCP is detected again, the boost operation is stopped .
(*5)…As the SCP detection continues up to 4096 count by the CP counter, IC will be latched off.
(*6)…The STB=L input can make IC reset. In this chart, DIMOUT asserts high by the discharge function in the paragraph 3.7.3.
(*7)…It normally starts as STB turns L to H.
(*8)…The operation of the SCP detection is not related to the logic of PWM.
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TSZ02201-0F1F0C100030-1-2
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11.Jul.2012 Rev.001
TSZ22111・15・001

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