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STR-W6754 Datasheet(PDF) 3 Page - Allegro MicroSystems

Part No. STR-W6754
Description  Universal-Input/100 W Off-Line Quasi-Resonant Flyback Switching Regulator
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Maker  ALLEGRO [Allegro MicroSystems]
Homepage  http://www.allegromicro.com
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STR-W6754 Datasheet(HTML) 3 Page - Allegro MicroSystems

   
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STR-W6754
Universal-Input/100 W Off-Line Quasi-
Resonant Flyback Switching Regulator
www.allegromicro.com
3
Switching
Regulators
ELECTRICAL CHARACTERISTICS at TA = +25°C, VCC = 20 V, voltage measurements are referenced to S/GND terminal
(unless otherwise specified).
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Start-Up Operation
Operation Start Voltage
VCC(ON)
Turn-on, VCC = 0
19.9 V
16.3
18.2
19.9
V
Soft-Start Operation Stop Voltage
VSS/OLP
1.1
1.2
1.4
V
Soft-Start Oper. Charging Current
ISS/OLP
-390
-550
-710
µA
Operation Stop Voltage
VCC(OFF)
Turn-off, VCC = 19.9
8.8 V
8.8
9.7
10.6
V
Circuit Current in Non-Operation
ICC(OFF)
VCC = 15 V
100
µA
Normal Operation
Drain-Source Breakdown Voltage
V(BR)DSS
ID = 300 µA
650
V
Drain Leakage Current
IDSS
VDS = 650 V
300
µA
On-State Resistance
rDS(on)
ID = 1.9 A, TJ = +25°C
0.96
Switching Time
t f
400
ns
Circuit Current
ICC(ON)
6.0
mA
Oscillation Frequency
fosc
19
22
25
kHz
Bottom-Skip Oper. Threshold Volt.
VOCPBD(BS1)
-605
-665
-720
mV
VOCPBD(BS2)
-385
-435
-485
mV
Quasi-Resonant Oper. Threshold
VOCPBD(TH1)
280
400
520
mV
VOCPBD(TH2)
670
800
930
mV
Feedback-Pin Threshold Voltage
VFB(OFF)
1.32
1.45
1.58
V
Feedback-Pin Current
IFB(ON)
600
1000
1400
µA
Standby Operation
Standby Operation Start Voltage
VCC(S)
VCC = 0
12.2 V
10.3
11.1
12.1
V
Standby Oper. Start Volt. Interval
VCC
1.10
1.35
1.65
V
Standby Non-Operation Current
ICC(S)
VCC = 10.2 V
20
56
µA
Feedback-Pin Current
IFB(ON)
VCC = 10.2 V
4.0
14
µA
Feedback-Pin Threshold Voltage
VFB(S)
VCC = 12.2 V
0.55
1.10
1.50
V
Minimum ON Time
ton(min)
0.5
0.8
1.2
µs
continued next page ...


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