STR-W6735_V データシートの表示（PDF） - Allegro MicroSystems
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STR-W6735_V Datasheet PDF : 13 Pages
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STR-W6735
Quasi-Resonant Topology
Primary Switching Regulators
ELECTRICAL CHARACTERISTICS
Characteristic
Symbol
Terminals
Min.
Typ.
Max. Units
ELECTRICAL CHARACTERISTICS for Controller (MIC)1, valid at TA = 25°C, VCC = 20 V, unless otherwise specified
Power Supply Start-up Operation
Operation Start Voltage
Operation Stop Voltage
Circuit Current In Operation
Circuit Current In Non-Operation
Oscillation Frequency
Soft Start Operation Stop Voltage
Soft Start Operation Charging Current
Normal Operation
VCC(ON)
VCC(OFF)
ICC(ON)
ICC(OFF)
fosc
VSSOLP(SS)
ISSOLP(SS)
4-3
4-3
4-3
4-3
1-3
5-3
5-3
16.3
18.2
19.9
V
8.8
9.7
10.6
V
–
–
6
mA
–
–
100
μA
19
22
25
kHz
1.1
1.2
1.4
V
–710
–550
–390
μA
Bottom-Skip Operation Threshold Voltage 1
Bottom-Skip Operation Threshold Voltage 2
Overcurrent Detection Threshold Voltage
OCP/BDOCP/BD Terminal Outflow Current
Quasi-Resonant Operation Threshold Voltage 1
Quasi-Resonant Operation Threshold Voltage 2
FB Terminal Threshold Voltage
FB Terminal Inflow Current (Normal Operation)
Standby Operation
VOCPBD(BS1)
VOCPBD(BS2)
VOCPBD(LIM)
IOCPBD
VOCPBD(TH1)
VOCPBD(TH2)
VFB(OFF)
IFB(ON)
7-3
7-3
7-3
7-3
7-3
7-3
6-3
6-3
–0.720 –0.665 –0.605
V
–0.485 –0.435 –0.385
V
–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
Standby Operation Start Voltage
Standby Operation Start Voltage Interval
Standby Non-Operation Circuit Current
FB Terminal Inflow Current, Standby Operation
FB Terminal Threshold Voltage, Standby Operation
Minimum On Time
Maximum On Time
Protection Operation
VCC(S)
VCC(SK)
ICC(S)
IFB(S)
VFB(S)
tON(MIN)
tON(MAX)
4-3
4-3
4-3
6-3
6-3
1-3
1-3
10.3
11.1
12.7
V
1.10
1.35
1.75
V
–
20
56
μA
–
4
14
μA
0.55
1.10
1.50
V
–
0.75
1.20
μs
27.5
32.5
39.0
μs
Overload Protection Operation Threshold Voltage
VSSOLP(OLP)
5-3
Overload Protection Operation Charging Current
ISSOLP(OLP)
5-3
Overvoltage Protection Operation Voltage
VCC(OVP)
4-3
Latch Circuit Holding Current2
ICC(H)
4-3
Latch Circuit Release Voltage2
VCC(La.OFF)
4-3
ELECTRICAL CHARACTERISTICS for MOSFET, valid at TA = 25°C, unless otherwise specified
Drain-to-Source Breakdown Voltage
VDSS
1-3
Drain Leakage Current
IDSS
1-3
On Resistance
RDS(on)
1-3
Switching Time
tf
1-3
Thermal Resistance
RθCF
Channel to Internal
Frame
4.0
–16
25.5
–
6.0
500
–
–
–
–
4.9
–11
27.7
45
7.2
–
–
–
–
–
5.8
V
–6
μA
29.9
V
140
μA
8.5
V
–
V
300
μA
0.57
Ω
400
ns
1.55
°C/W
1Current polarity with respect to the IC: positive current indicates current sink at the terminal named, negative current indicates source at the
terminal named.
2Latch circuit refers to operation during Overload Protection or Overvoltage Protection.
28103.30-5
5
SANKEN ELECTRIC CO., LTD.
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