BD9890F Datasheet - Rohm

BD9890F DC-AC Inverter Controller

UVLO NA1 NB1 NA2 NB2 PGND FAIL Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name DUTY BRT BCT RT SRT CT GND FB1 IS1 VS1 FB2 IS2 VS2 VREF FAIL STB COMP1 COMP2 UVLO REG SS SCP NA2 NB2 PGND NB1 NA1 Vcc Function Control PWM mode and BURST mode External resis.

1/4 STRUCTURE NAME OF PRODUCT TYPE FUNCTION Silicon Monolithic Integrated Circuit DC-AC Inverter Control IC ＢＤ９８９０Ｆ 2ch control with Push-Pull Lamp current and voltage sense feed back control Sequencing easily achieved with Soft Start Control Short circuit protection with Timer Latch Under Voltage Lock Out Short circuit protection with over voltage Mode-selectable the operating or stand-by mode by stand-by pin Synchronous operating the other BD9890F or BD9890FV IC’s BURST mode controlled by PW.

BD9890F_Rohm.pdf