str-s6707 Allegro MicroSystems, Inc., str-s6707 Datasheet

str-s6707

Manufacturer Part Number

str-s6707

Description

Off-line Switching Regulators ? With Bipolar Switching Transisto

Manufacturer

Allegro MicroSystems, Inc.

Datasheet

1.STR-S6707.pdf (8 pages)

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Download datasheet (139Kb)

Supply Voltage, V

Output Voltage, V

Continuous Output Current,

1 ms Single-Pulse Output Current,

Sink Current, I

Drive Current, I

Feedback Current, I

Inhibit Voltage, V

Over-Current Protection Voltage Range,

Insulation Voltage,V

Package Power Diss., P

Output Junction Temperature, T

Internal Frame Temperature, T

Operating Temperature Range,

Storage Temperature Range,

ABSOLUTE MAXIMUM RATINGS

OVER-CURRENT

PROTECTION

EBO

OCP

stg

COLLECTOR

.......................................... See Table

............................... -20 C to +125 C

COMMON

........................................ See Table

............................. -40 C to +125 C

INHIBIT

DRIVE

BASE

FDBK

................................................ 7 V

............................................ 3.5 V

SINK

V IN

......................... See Table

.......................... -700 mA

INH

CEX

DRIVE

FDBK

........................... 15 V

WM(RMS)

....................... 850 V

................. 20 mA

........ See Graph

OSC.

........... 2000 V

– WITH BIPOLAR SWITCHING TRANSISTOR

... +125 C

.. +150 C

FAULT

LATCH

FAULT

UVLO

REF.

Dwg. PK-001

OFF-LINE SWITCHING REGULATORS

designed to meet the requirement for increased integration and reliabil-

ity in off-line quasi-resonant flyback converters. These devices incorpo-

rate the primary control and proportional drive circuit with a third-

generation high-voltage bipolar switching transistor.

time are fixed during manufacture. Local control circuit decoupling and

layout are optimized within each device.

esis, 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 over-

molded single-in-line power package.

frequency counterparts represent a significant advance in off-line SMPS

reliability growth and integration.

FEATURES

Always order by complete part number:

™

STR-S6707

STR-S6709

Part Number

STR-S6707

STR-S6708

STR-S6709

Quasi-Resonant Operation for Low EMI and High Efficiency

Output Power to 220 W

Low-Power Output Standby Mode

Pulse-by-Pulse Over-Current Protection

Latched Over-Voltage and Thermal Protection

Third-Generation Switching Transistor with Proportional Drive

Maximum ON Time and Off Time Set During Manufacture

Internal Under-Voltage Lockout with Hysteresis

Over-Molded SIP with Integral Isolated Heat Spreader

The STR-S6707, STR-S6708, and STR-S6709 are specifically

Crucial system parameters such as maximum ON time and OFF

Cycle-by-cycle current limiting, under-voltage lock-out with hyster-

Proven in substantial volumes, these devices and their fixed-

Max. Cont.

Current, I

7.5 A

10 A

6 A

Current, I

THRU

Peak

12 A

15 A

20 A

Current, I

Max. Sink

1.5 A

2 A

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