BA9785FS ic equivalent, transformer inverter control ic.
Equivalent circuit
VCC VREG
ON/OFF 1
1k 110k 120k
PCH_GATE
100k
100k GND1
2 3 4
GND1 I_CFL DET_CR
GND
5
LOOP_C 0.5V 2.0V 0.5V
2.0V 0.5V
VREG
VREF VREF 60µA I_CFL 3 30k 5k 20k
VCC
VCO 60k 3µA 3µA 60k
20k
500
VCC VCC
GND1
4
DET_CR
5.
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