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STR-W6753 Datasheet, PDF (3/8 Pages) Allegro MicroSystems – Universal-Input/58 W Off-Line Quasi-Resonant Flyback Switching Regulator
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STR-W6753
Universal-Input/58 W Off-Line Quasi-
Resonant Flyback Switching Regulator
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
Soft-Start Operation Stop Voltage
Soft-Start Oper. Charging Current
Operation Stop Voltage
Circuit Current in Non-Operation
Normal Operation
VCC(ON)
VSS/OLP
ISS/OLP
VCC(OFF)
ICC(OFF)
Turn-on, VCC = 0 19.9 V
Turn-off, VCC = 19.9
VCC = 15 V
8.8 V
16.3 18.2 19.9 V
1.1 1.2 1.4 V
-390 -550 -710 µA
8.8 9.7 10.6 V
–
– 100 µA
Drain-Source Breakdown Voltage
Drain Leakage Current
On-State Resistance
Switching Time
Circuit Current
Oscillation Frequency
Bottom-Skip Oper. Threshold Volt.
Quasi-Resonant Oper. Threshold
Feedback-Pin Threshold Voltage
Feedback-Pin Current
Standby Operation
V(BR)DSS
IDSS
rDS(on)
tf
ICC(ON)
fosc
VOCPBD(BS1)
VOCPBD(BS2)
VOCPBD(TH1)
VOCPBD(TH2)
VFB(OFF)
IFB(ON)
ID = 300 µA
VDS = 650 V
ID = 1.4 A, TJ = +25°C
650 –
–
V
–
– 300 µA
–
–
1.7 Ω
–
– 400 ns
–
–
6.0 mA
19 22 25 kHz
-605 -665 -720 mV
-385 -435 -485 mV
280 400 520 mV
670 800 930 mV
1.32 1.45 1.58 V
600 1000 1400 µA
Standby Operation Start Voltage
Standby Oper. Start Volt. Interval
Standby Non-Operation Current
Feedback-Pin Current
Feedback-Pin Threshold Voltage
Minimum ON Time
VCC(S)
VCC
ICC(S)
IFB(ON)
VFB(S)
ton(min)
VCC = 0 12.2 V
VCC = 10.2 V
VCC = 10.2 V
VCC = 12.2 V
10.3 11.1 12.1 V
1.10 1.35 1.65 V
–
20 56 µA
–
4.0 14 µA
0.55 1.10 1.50 V
0.5 0.8 1.2 µs
continued next page ...
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