STR-S6703 AND STR-S6704
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
ELECTRICAL CHARACTERISTICS at TA = +25°C, VIN = 8.5 V, voltage measurements are refer-
enced to Common (pin 2) (unless otherwise noted).
Characteristic
Symbol
Test Conditions
Limits
Min. Typ. Max.
On-State Voltage
Under-Voltage Lockout
Over-Voltage Threshold
Output Leakage Current
Output Saturation Voltage
DC Current Gain
Maximum ON Time
Minimum OFF Time
Over-Current Threshold
Feedback Threshold Volt.
Inhibit Threshold Voltage
VINT
VINQ
VOVP(th)
ICEX
VCE(sat)
VBE(sat)
hFE
ton
toff
VOCP(th)
VFDBK(th)
VINH(th)
Turn-on, increasing VIN
Turn-off, decreasing VIN
VCE = 500 V, VBE = -1.5 V
STR-S6703, IC = 2 A, IB = 400 mA
STR-S6704, IC = 2 A, IB = 400 mA
STR-S6703, IC = 2 A, IB = 400 mA
STR-S6704, IC = 2 A, IB = 400 mA
STR-S6703, VCE = 4 V, IC = 1 A
STR-S6704, VCE = 4 V, IC = 1 A
Oscillation stops
Oscillation synchronized
7.6 8.0 8.4
4.6 4.9 5.2
9.2 – 10.7
– – 100
– – 400
–
– TBD
– – 1.5
–
– TBD
23 – 46
20 – 50
33 – 41
45 – 55
-0.9 -1.0 -1.1
– 650 –
0.65 0.75 0.85
– 1.4 2.0
Oscillation stops (fault latch set)
3.2 5.1 5.6
Latch Holding Current
Latch Reset Voltage
Supply Current
Insulation RMS Voltage
IINH
VQ
IIN(ON)
IIN(OFF)
VWM(RMS)
VIN reduced from 10.7 V to 4 V
IIN ≤ 100 µA, VIN reduced from 10.7 V
Operating
All terminals simultaneous reference
metal plate against backside
– – 500
2.5 3.1 –
15 – 28
– – 200
2000 – –
Thermal Shutdown
Thermal Resistance
TJ
RθJM
Output junction to mounting surface
125 150 –
– 2.0 –
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
Units
V
V
V
µA
mV
mV
V
V
–
–
µs
µs
V
mV
V
V
V
µA
V
mA
µA
V
°C
°C/W
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