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PDF SSC9522S Data sheet ( Hoja de datos )

Número de pieza SSC9522S
Descripción Automatic Dead Time Adjustment Control IC
Fabricantes Sanken 
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No Preview Available ! SSC9522S Hoja de datos, Descripción, Manual

High Efficiency, Low noise, Automatic Dead Time Adjustment
Control IC for Half-Bridge LLC Off-line Switching Regulators
SSC9522S
June 278, 2012
General Description
The SSC9522S is a controller IC (SMZ* method) for
half-bridge resonant type power supply, incorporating a
floating drive circuit for High-side MOSFET drive.
*SMZ = Soft-switched Multi-resonant Zero Current switch,
all switching periods work with soft switching operation.
The IC is suitable for high performance power supply
system with small size, high efficiency and low noise,
because for various power supply specifications, more
effective and easier design works are achievable with
effective functions as the Automatic Dead Time Adjustment,
the Uncontrollable Operation Detection and so on.
Package
SOIC18
Not to scale
Features and Benefits
Built-in floating drive circuit for High-side MOSFET
Soft Start Function, reducing of power MOSFET stress and
preventing Uncontrollable Operation, at startup
Uncontrollable Operation Detection Function on
pulse-by-pulse basis, improving the ability of transformer
output wattage because the frequency range is available
up to the resonant frequency, fO, and reducing power
MOSFET stress
Automatic Dead Time Adjustment Function, not being
necessary to make the dead time adjustment for each
power supply specification
Line Undervoltage Protection Function
(Brown-InBrown-Out Function)
Prevention of excessive input current and overheat at low
input voltage
Protection Functions
External Latch Function ------------ Latch shutdown by
external signal input
Overcurrent Protection (OCP)----- Pulse-by-pulse
Overvoltage Protection (OVP) ---- Latch shutdown
Overload Protection (OLP) -------- Latch shutdown
Thermal Shutdown (TSD)---------- Latch shutdown
Electrical Characteristics
Maximum rating of VCC
Minimum frequency, F(MIN)
Maximum frequency, F(MAX)
Maximum dead - time, td(MAX)
Minimum dead - time , td(MIN)
35V(MAX)
28.3kHz(TYP)
300kHz(TYP)
2.45µs(TYP)
0.50µs(TYP)
Applications
Switching power supplies for electronic devices such as:
LCD and PDP TV
Sarver
Multi Function Printer
Industrial Equipment
Communications Equipment
Typical Application Circuit
VAC
D1
R4
C1
R5
R6
R7 C9
C10
D2
REG
8
VSEN
1
VCC
2
GND
4
FB
3
R9
14
VB
RB(H) DS(H)
16
VGH
15
VS
Q(H)
RA(H) RGS(H)
SSC9522S
RB(L) DS(L)
VGL 11
Q(L)
RA(L)
RGS(L)
COM
CSS OC RRCC RV
10
56
79
CVCC
R1 R2
C7 PC1 C6
R11
C8 C13 C14
C11 D3
Cv
Ci
CRV
C12
ROCP
外部電源
T1
C16
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
D4
PC1
C15
D5
1
Free Datasheet http://www.Datasheet4U.com

1 page




SSC9522S pdf
High Efficiency, Low noise, Automatic Dead Time Adjustment
Control IC for Half-Bridge LLC Off-line Switching Regulators
SSC9522S
Functional Block Diagram
2
VCC
4
GND
Start/Stop
Reg/Bias
OVP/Latch
GND
1
VSEN
Input
Sense
OLP
Main
UVLO
Level
Shift
High Side
VCC
3
FB
5
CSS
FB
Control
Frequency
Control
Sof-t Start/OC
Dead
Time
Freq.
Max
RC Detector
OC Detector
June 278, 2012
14
VB
16 VGH
15
VS
8 REG
11
VGL
10
COM
7
RC
6 OC
Pin List Table
1 VSEN
2 VCC
3 FB
4 GND
5 CSS
6 OC
7 RC
8 REG
9 RV
(NC) 18
(NC) 17
VGH 16
VS 15
VB 14
(NC) 13
(NC) 12
VGL 11
COM 10
Terminal
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Symbol
VSEN
VCC
FB
GND
CSS
OC
RC
REG
RV
COM
VGL
(NC)
(NC)
VB
VS
VGH
(NC)
(NC)
Functions
AC line input voltage detection
Power supply input for control circuit and
Overvoltage protection signal input
Constant voltage control signal input and
Overload protection signal input
Ground for control part
Soft start capacitor connection
and external latch shutdown signal input
Overcurrent protection signal input
Resonant current signal input
Power supply output for gate drive
Resonant voltage signal input
Ground for power part
Low-side gate drive output
(No connection)
(No connection)
High-side gate drive voltage input
High-side drive floating ground
High-side gate drive output
(No connection)
(No connection)
SANKEN ELECTRIC CO., LTD.
5
Free Datasheet http://www.Datasheet4U.com

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