STR-S6708 Allegro, STR-S6708 Datasheet - Page 3

• Manufacturer Part Number: STR-S6708
• Description: OFF-LINE SWITCHING REGULATORS WITH BIPOLAR SWITCHING TRANSISTOR
• Manufacturer: Allegro

ELECTRICAL CHARACTERISTICS at T
enced to Common (pin 2) (unless otherwise noted).
Characteristic
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
Latch Holding Current
Latch Reset Voltage
Supply Current
Insulation RMS Voltage
Thermal Shutdown
Thermal Resistance
NOTES: Negative current is defined as coming out of (sourcing) the specified device terminal.
www.allegromicro.com
Typical Data is for design information only.
FUNCTIONAL BLOCK DIAGRAM
EXCEPT FOR SINK OUTPUT
V
Symbol
V
V
V
V
V
V
I
WM(RMS)
I
IN(OFF)
FDBK(th)
R
V
IN(ON)
V
OVP(th)
OCP(th)
I
CE(sat)
BE(sat)
INH(th)
h
I
V
CEX
t
t
INH
T
INQ
θJM
INT
on
off
FE
Q
J
STR-S6709
AS ABOVE
Test Conditions
Turn-on, increasing V
Turn-off, decreasing V
V
STR-S6707, I
STR-S6708, I
STR-S6709, I
STR-S6707, I
STR-S6708, I
STR-S6709, I
V
Oscillation stops
Oscillation synchronized
Oscillation stops (fault latch set)
V
I
Operating
All terminals simultaneous reference
metal plate against backside
Output junction to mounting surface
A
IN
CE
CE
IN
= +25
≤ 100 µA, V
reduced from 10.7 V to 4 V
= 850 V, V
= 4 V, I
°
C, V
C
= 1 A
C
C
C
C
C
C
IN
BE
= 2 A, I
= 3 A, I
= 4 A, I
= 2 A, I
= 3 A, I
= 4 A, I
IN
reduced from 10.7 V
= -1.5 V
= 8.5 V, voltage measurements are refer-
IN
QUASI-RESONANT FLYBACK
IN
B
B
B
B
B
B
= 400 mA
= 600 mA
= 800 mA
= 400 mA
= 600 mA
= 800 mA
20 Ω
SWITCHING REGULATORS
STR-S6707
4
2000
Min. Typ. Max.
SINK
0.65
-0.9
125
7.6
4.6
9.2
3.2
2.5
29
33
45
15
–
–
–
–
–
–
–
–
–
–
–
–
THRU
0.75
-1.0
650
150
8.0
4.9
1.4
5.1
3.1
2.0
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
STR-S6709
OFF-LINE
Limits
10.7
0.85
100
400
400
400
-1.1
500
200
8.4
5.2
1.5
1.5
1.5
2.0
5.6
61
41
55
29
–
–
–
–
–
Units
°C/W
mV
mV
mV
mV
mA
µA
µA
µA
°C
µs
µs
V
V
V
V
V
V
V
V
V
V
V
V
–