BD9890F

The BD9890F has 10 functions.The first one is 2ch control with push-pull.The second one is lamp current and voltage sense feed back control.The third one is sequencing easily achieved with soft start control.The fourth one is short circuit protection with timer latch.The fifth one is under voltage lock out.The sixth one is short circuit protect with over voltage.The seventh one is mode-selectable the operating or stand-by mode by stand-by pin.The eighth one is synchronous operating the other BD9890F or BD9890FV IC's.The ninth one is BURST mode controlled by PWM and DC input.The tenth one is 2ch in-phase in BURST mode.

The BD9890F has some absolute maximum ratings (Ta = 25).When parameter is supply voltage,the symbol is VCC,the limits is 15,the unit is V.When parameter is operating temperature range,the symbol is Topr,the limits is -40 to +90,the unit is .When parameter is storage temperature range,the symbol is Tstg,the limits is -55 to +125,the unit is .When parameter is power dissipation,the symbol is Pd,the limits is 600 (BD9890F),the unit is mW.When parameter is power dissipation,the symbol is Pd,the limits is 850 (BD9890FV),the unit is mW.When parameter is maximum junction temperature,the symbol is Tjmax,the limits is +125,the unit is .

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