negativo primer tiempo D43 esta para no afectar a CS
vcc on = 8v vcc off = 6v vcc max 24v
SENSOR CORRIENTE
vcc on = 10.5v version A (ojo version B 17v) vcc off = 9v vcc max =35v vcc reset 4v con baja carga opera en 20khz
134K
12V
PFC modo critico drenaje
gate
surtidor
>1v on 1.8v reduce gain pin 3
DESMAGNETIZACION 750mv - 250mv
V SENSE
CAP BOOSTRAP
15VCC
PFC OK
vcc on 10.5v
SALIDA FET ALTA
FB = 2.50V soft ovp 2.55v (102% de 2.50v) UVP 1 = 0.3V (12% 2.50V Fast ovp 2.675v (107% 2.5V) LATCH BUP =1.9V (76% 2.50V) pfc ok cero UVP2= 0.3V
121K
VCC ON =13.3V ver A VCC ON =10.5V ver B VCC OFF =9.5V VCC MAX=20V VCC RESET= 6.5V
0,5v max
FB
(sal amp error)
V CONTROL
GND
PFC OK pin 10 esta conectado a masa hasta alcanzar la tension nominal.si detecta falla se pone en bajo. si aplicamos 7.5v externos el ic entra en modo cerrojo(latch).
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