BD9285F ROHM [Rohm], BD9285F Datasheet - Page 30

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

Datasheet
BD9285F
3.7.5 the OVP detection
(*1)…As OVP is detected, the output GATE=L, DIMOUT=L, and the CP counter starts
(*2)…If OVP is released within 4 clock of CP counter of the GATE pin frequency, the boost operation restarts.
(*3)…As the OVP is detected again, the boost operation is stopped .
(*4)…As the OVP detection continues up to 4 count by the CP counter, IC will be latched off.
(*5)…As the latched off, the boost operation doesn't restart even if OVP is released.
(*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 OVP detection is not related to the logic of PWM.
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