Uploader: Jasper
Country: France
Uploaded: May 19, 2018
Price: Free

Please, verify you are not robot to load rest of pages

download str z2062 pdf

Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
STR-X6756
Sep. 2013
◆ General description
◆ Package
The STR- X6756 is power IC for quasi-resonant type
switching power supply, incorporating a power MOSFET
and a controller IC. The product achieves high efficiency
and low noise power supply systems by the quasi-resonant
operation and the bottom-skip quasi-resonant operation.
Package name: TO-3PF-7L
◆ Features
 Multi operation mode
The operation mode switching according to load
conditions achieves the optimal high efficiency and low
noise power supply systems across the full load range.
 Current mode control
 Built-in PWM oscillator
The PWM operates with the minimum frequency of
around 22kHz, until the quasi-resonant signal becomes
valid, reduces the stress on components at startup and
load-shorted.
 Built-in soft start function
 Step-drive function, reducing switching noise
 Input compensation at overcurrent
The function reduces the distortion of overcurrent
operation point to AC input voltage change by adding
three components.
 Avalanche energy guaranteed by two chips structure
(Simplification of surge absorbing circuit)
 Protection functions
Overcurrent protection (OCP); Pulse-by-pulse
Overload protection (OLP); latched shutdown
Overvoltage protection (OVP); latched shutdown
◆ Specification
MOSFET
650V(MIN), 0.73Ω(MAX)
◆Application
Switching power supplies for
 LCD-TVs, PDP-TVs, CRT-TVs and Digital consumer
equipment
 Home appliances
 OA equipments
 Industry machines
 Communication devices
◆ Typical application circuit
+B
ErrAmp
P
S1
GND
Standby
ON/OFF
D
VCC
1
D
4
LowB
S2
STR-X6700
ErrAmp:SANKEN SE Series
Reg:
Sanken linear regulator IC, etc.
6
SI:SANKEN Linear Regulator IC
FB
2
3
GND
7
5
OCP
/BD
Standby
Out
GND
Cont.
S
SI
Reg
RX
SS
/OLP
CX
ROCP
Sanken Electric Co., Ltd.
1/11
Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
STR-X6756
Sep. 2013
Absolute maximum ratings
 The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
 Unless otherwise specified, TA = 25 °C
Item
Pin
Symbol
Ratings