STR-S6707 Просмотр технического описания (PDF) - Allegro MicroSystems
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STR-S6707 Datasheet PDF : 8 Pages
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STR-S6709
FUNCTIONAL BLOCK DIAGRAM
AS ABOVE
EXCEPT FOR SINK OUTPUT
STR-S6707 THRU STR-S6709
OFF-LINE
QUASI-RESONANT FLYBACK
SWITCHING REGULATORS
20 Ω
4 SINK
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
Min.
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 = 850 V, VBE = -1.5 V
STR-S6707, IC = 2 A, IB = 400 mA
STR-S6708, IC = 3 A, IB = 600 mA
STR-S6709, IC = 4 A, IB = 800 mA
STR-S6707, IC = 2 A, IB = 400 mA
STR-S6708, IC = 3 A, IB = 600 mA
STR-S6709, IC = 4 A, IB = 800 mA
VCE = 4 V, IC = 1 A
Oscillation stops
Oscillation synchronized
7.6
4.6
9.2
–
–
–
–
–
–
–
29
33
45
-0.9
–
0.65
–
Oscillation stops (fault latch set)
3.2
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
–
2.5
15
–
2000
Thermal Shutdown
Thermal Resistance
TJ
125
RθJM
Output junction to mounting surface
–
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
Typical Data is for design information only.
Limits
Typ. Max.
8.0 8.4
4.9 5.2
– 10.7
– 100
– 400
– 400
– 400
– 1.5
– 1.5
– 1.5
– 61
– 41
– 55
-1.0 -1.1
650 –
0.75 0.85
1.4 2.0
5.1 5.6
– 500
3.1 –
– 29
– 200
––
150 –
2.0 –
Units
V
V
V
µA
mV
mV
mV
V
V
V
–
µs
µs
V
mV
V
V
V
µA
V
mA
µA
V
°C
°C/W
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