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PDF CXA3810M Data sheet ( Hoja de datos )
| Número de pieza | CXA3810M | |
| Descripción | AC-DC Controller | |
| Fabricantes | Sony | |
| Logotipo |  |
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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
Free Datasheet http://www.datasheet4u.com/
1 page  
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-
Free Datasheet http://www.datasheet4u.com/
5 Page 
CXA3810M
5. AC Off Detect Signal Output Circuit Block (AC_DETOUT pin)
Item
Output Low voltage
Output High voltage
Symbol
Vacoutl
Vacouth
Measurement conditions
VCC = 18V, Iout = 10mA
VCC = 18V, Iout = –10mA
Min. Typ. Max. Unit
— 0.5 1.0 V
17.0 17.5 — V
6. MODE Pin Voltage Detection Circuit Block (MODE1, MODE2 pin)
Item
MODE detection
voltage Low
MODE detection
voltage High
Internal pull-up
resistor value
7. Clock Timer
Symbol
Vmodel
Measurement conditions
Vmodeh
Rmode
MODE = 0.1V
Min. Typ. Max. Unit
5.2 — 5.6 V
7.6 — 8.4 V
35 50 65 k
Item
1ms clock
Symbol
Tclock
Measurement conditions
Min. Typ. Max. Unit
972 1024 1075 s
- 11 -
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 70 Páginas | |
| PDF Descargar | [ Datasheet CXA3810M.PDF ] | |
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