STR-W6750F PDF даташит
Спецификация STR-W6750F изготовлена «Sanken» и имеет функцию, называемую «Power IC». |
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Детали детали
Номер произв | STR-W6750F |
Описание | Power IC |
Производители | Sanken |
логотип |
11 Pages
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Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
STR-W6750F
◆General description
The STR-W6750F 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.
◆Package
Package name: TO-220F-6L (FM207)
Sep. 2013
◆Features
Quasi-resonant operation mode
Achieves the optimal high efficiency and low noise
power supply systems.
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)
◆Applications
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
STR-W6700
D
1
VCC
4
3
S/GND
ROCP
Cont
7
OCP
/BD
6
FB
5
SS
/OLP
RX
CX
P S1
+B
ErrAmp
D
S2
RSeIg
GND
Standby
ON/OFF
LowB
Standby
Out
GND
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Sanken Electric Co., Ltd.
1/11
Free Datasheet http://www.Datasheet4U.com
No Preview Available ! |
Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
STR-W6750F
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
Unit
Remark
Drain Current
Maximum Switching Current
1−3
1−3
IDpeak(1)
IDMAX(2)
15
15
A Single pulse
A Ta=-20 to +125°C
Avalanche Energy
Control Power Supply Voltage
SS/OLP pin Voltage
Single pulse
1−3 EAS(3) 400 mJ VDD= 99V,L=20mH
ILpeak=6.05A
4−3 VCC
35 V
5−3
VSSOLP
−0.5~6.0
V
FB pin Inflowing Current
FB pin Voltage
6−3 IFB
10 mA
6−3
VFB
−0.5~9.0
V
Within IFB control
OCP/BD pin Voltage
7−3
VOCPBD
−1.5~5.0
V
MOS FET Power Dissipation
1−3
PD1(4)
29 W By infinite radiator
1.3 W
No radiator
Control Power Dissipation (MIC)
4−3 PD2
0.8 W Defined by VCC×ICC
Operating Inner Flame Temperature
−
TF
−20~+115 °C
Refer to recommended
operating temperature
Operating Ambient Temperature
− TOP −20~+115 °C
Storage Temperature
− Tstg −40~+125 °C
Channel Temperature
−
Tch
+150
°C
(1) Refer to MOS FET A.S.O. curve
(2) Regarding the maximum switching current
The maximum switching current is drain current IC determined by inner drive voltage and MOS FET Vth.
(3) Refer to MOS FET Tch-EAS curve
(4) Refer to MOS FET Ta-PD1 curve
Sanken Electric Co., Ltd.
2/11
Free Datasheet http://www.Datasheet4U.com
No Preview Available ! |
Power IC for Quasi-Resonant Type Switching Power Supply
with High Efficiency and Low Noise in Full Load Range
STR-W6750F
Sep. 2013
Electrical characteristics
Electrical characteristics for control part
The polarity value for current specifies a sink as "+," and a source as "−," referencing the IC.
Unless otherwise specified, TA = 25 °C, VCC = 20V
Item Pin
Power supply Start-up Operation
Operation start power supply voltage
4−3
Operation stop power supply voltage
4−3
Circuit current in operation
4−3
Circuit current in non-operation
4−3
Oscillation frequency
1−3
Soft start operating stop voltage
5−3
Soft start operating charging current
5−3
Normal Operation
Overcurrent detection threshold
voltage
OCP/BD pin source current
Quasi-resonant operation threshold
voltage 1
Quasi-resonant operation threshold
voltage 2
FB pin threshold voltage
7−3
7−3
7−3
7−3
6−3
FB pin sink current (Normal operation)
Stand-by Operation
6−3
Stand-by operation start voltage
Stand-by operation start voltage
interval
Stand-by non-operation circuit current
FB pin sink current (stand-by
operation)
FB pin threshold voltage (stand-by
operation)
Minimum ON time
4−3
4−3
4−3
6−3
6−3
1−3
Protection Operation
Maximum ON time
1−3
OLP operation threshold voltage
5−3
Charge current in OLP operation
5−3
OVP operation power supply voltage
4−3
Latch circuit holding current*
4−3
Latch circuit releasing power supply
voltage*
4−3
*Latch circuit refers to operation during OVP and OLP.
Symbol
VCC(ON)
VCC(OFF)
ICC(ON)
ICC(OFF)
FOSC
VSSOLP(SS)
ISSOLP(SS)
VOCPBD(LIM)
IOCPBD
VOCPBD(TH1)
VOCPBD(TH2)
VFB(OFF)
IFB(ON)
VCC(S)
VCC(SK)
ICC(S)
IFB(S)
VFB(S)
tON(MIN)
tON(MAX)
VSSOLP(OLP)
ISSOLP(OLP)
VCC(OVP)
ICC(H)
VCC(La.OFF)
Ratings
MIN TYP MAX
Unit
16.3
8.8
−
−
19
1.1
−710
18.2
9.7
−
−
22
1.2
−550
19.9
10.6
6
100
25
1.4
−390
V
V
mA
µA
kHz
V
µA
−0.995 −0.940 −0.895 V
−250 −100 −40 µA
0.28 0.40 0.52 V
0.67 0.80 0.93 V
1.32 1.45 1.58 V
600 1000 1400 µA
10.3 11.1 12.1 V
1.10 1.35 1.65 V
− 20 56 µA
− 4 14 µA
0.55 1.10 1.50 V
0.4 0.7 1.1 µs
27.5 32.5 39.0 µs
4.0 4.9 5.8 V
−16 −11 −6 µA
25.5 27.7 29.9 V
− 45 140 µA
6.0 7.2 8.5 V
Remark
Sanken Electric Co., Ltd.
3/11
Free Datasheet http://www.Datasheet4U.com
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