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AC-DC Controller
CXA3810M
Description
The CXA3810M has optimum configuration to realize various power supply circuits easily and compactly by
including Power-factor correction, resonant controller and various protection function in one package.
(Applications: Power supply circuit, etc.)
Features
 Power-factor correction





Critical conduction mode PFC control
Supports W/W input
Start timer
Maximum frequency limit (During overcurrent detection)
Continuous overcurrent detection protection function
 Resonant controller




Timer-latch over current protection
Soft start function
Adjustment minimum frequency limit
Pulse over current load detection
 Common




Adjacent 2-pin short protection
Various protection functions including overvoltage and overcurrent
AC off detection
PFC-OK signal output
Structure
BiCMOS silicon monolithic IC
Package
24-pin SOP
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license
by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating
the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
-1-
E10629
CXA3810M
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Remarks
24.0
V
VCC
Maximum supply voltage
VCC
Pin voltage which operates
with VCC as power supply
VCCIN
–0.3 to VCC + 0.3
V
AC_DETIN, AC_DETOUT,
AC_VRMS, B_OK, MODE1, MODE2
Driver output pin voltage
VOUT
–0.3 to VCC + 0.3
V
PFC_OUT, RM_OUTP, RM_OUTN
Power supply pin voltage
for internal circuit
VREF
–0.3 to +7.0
V
VREF
–0.3 to +7.0
V
PFC_OVP, PFC_CS, PFC_VAO,
PFC_TONMAX, PFC_VSENSE,
RM_OFFADJ, RM_RT, RM_SS,
RM_CS1, RM_CS2, RM_FMIN
Pin voltage which operates
with VREF as power supply
VREFIN
ZCD current
Izcd
7
mA
PFC_ZCD
Allowable power
dissipation
PD
*1
mW
(See the thermal derating curve.)
Operating ambient
temperature range
Topt
–30 to +125
C