CXA3810M
Pin Table
Pin
No.
Symbol
Description
1 PFC_OUT
PFC MOSFET gate driver output
2 MODE1
Mode determination pin1 (Active STBY when MODE1 = Low,
MODE2 = High)
3 AC_DETIN
AC voltage sense input
4 AC_VRMS
AC peak voltage sense and PFC enable
5 PFC_ZCD
PFC zero current detect input
6 PFC_CS
PFC current sense input
7 PFC_VAO
PFC voltage control error amplifier output
8 PFC_VSENSE PFC output voltage sense input
9 PFC_OVP
PFC output overvoltage sense input
10 PFC_TONMAX PFC maximum ON time control
11 RM_OFFADJ
Resonant controller stop voltage adjustment and abnormal latch
input
12 RM_FMIN
Resonant controller minimum frequency setting
13 RM_SS
Resonant controller soft start and overcurrent timer-latch setting
14 RM_CS2
Resonant controller overcurrent sense input (continuous
overcurrent)
15 RM_CS1
Resonant controller overcurrent sense input (pulse by pulse
overcurrent)
16 RM_RT
Resonant controller frequency control
17 VREF
Internal supply voltage
18 GND
GND
19 VCC
Power supply input
20 B_OK
PFC-OK signal output
21 RM_OUTN
Resonant controller Low-side MOSFET driver output
22 AC_DETOUT AC off detect signal output
23 RM_OUTP
Resonant controller High-side MOSFET driver output
24 MODE2
Mode determination pin2 (SEQ mode when MODE1 = Low,
MODE2 = Low)
Connection
end of
protection
diode
-
VCC, GND
VCC, GND
VCC, GND
VCC, GND
VREF, GND
VREF, GND
VREF, GND
VREF, GND
VREF, GND
VREF, GND
VREF, GND
VREF, GND
VREF
VREF
VREF, GND
VCC, GND
—
GND
—
—
—
—
VCC, GND
-5-