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STRS6709

Allegro MicroSystems
Part Number STRS6709
Manufacturer Allegro MicroSystems
Description (STRS6707 - STRS6709) OFF-LINE SWITCHING REGULATORS - WITH BIPOLAR SWITCHING TRANSISTOR
Published Nov 15, 2005
Detailed Description STR-S6707 THRU STR-S6709 OFF-LINE SWITCHING REGULATORS – WITH BIPOLAR SWITCHING TRANSISTOR COLLECTOR 1 COMMON 2 FAULT...
Datasheet PDF File STRS6709 PDF File

STRS6709
STRS6709

Overview
STR-S6707 THRU STR-S6709 OFF-LINE SWITCHING REGULATORS – WITH BIPOLAR SWITCHING TRANSISTOR COLLECTOR 1 COMMON 2 FAULT The STR-S6707, STR-S6708, and STR-S6709 are specifically designed to meet the requirement for increased integration and reliability in off-line quasi-resonant flyback converters.
These devices incorporate the primary control and proportional drive circuit with a thirdgeneration high-voltage bipolar switching transistor.
S DRIVE FAULT LATCH Data Sheet 28113† BASE 3 SINK 4 OSC.
R DRIVE OVER-CURRENT PROTECTION FDBK 5 Crucial system parameters such as maximum ON time and OFF time are fixed during manufacture.
Local control circuit decoupling and layout are optimized within each device.
Cycle-by-cycle current limiting, under-voltage lock-out with hysteresis, over-voltage protection, and thermal shutdown protect these devices during all normal and overload conditions.
Over-voltage protection and thermal shutdown are latched after a short delay.
A versatile triple-level inhibit circuit includes the OFF time synchronization required to establish quasi-resonant operation.
The inhibit function has also been expanded to initiate operation in stand-by mode in which the power supply delivers a small fraction of the steady-state output power.
The dual requirements of dielectric isolation and low transient thermal impedance and steady-state thermal resistance are satisfied in an overmolded single-in-line power package.
6 + REF.
7 INHIBIT 8 UVLO V IN 9 Dwg.
PK-001 ABSOLUTE MAXIMUM RATINGS Supply Voltage, VIN .
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15 V Output Voltage, VCEX .
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850 V VEBO .
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7 V Continuous Output Current, IC .
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See Table 1 ms Single-Pulse Output Current, ICM See Table Sink Current, IS See Table Drive Current, ID .
-700 mA Feedback Current, IFDBK .
...


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