STR-S6708 Allegro, STR-S6708 Datasheet

STR-S6708

Manufacturer Part Number

STR-S6708

Description

OFF-LINE SWITCHING REGULATORS WITH BIPOLAR SWITCHING TRANSISTOR

Manufacturer

Allegro

Datasheet

1.STR-S6708.pdf (8 pages)

Current page: 1 of 8
Download datasheet (163Kb)

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

COLLECTOR

stg

EBO

OCP

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

COMMON

............................... -20

INHIBIT

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

DRIVE

............................. -40

BASE

FDBK

SINK

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

............................................

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

C to +125

... +125

FAULT

LATCH

.. +150

UVLO

REF.

3.5 V

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

I Quasi-Resonant Operation for Low EMI and High Efficiency

I Output Power to 220 W

I Low-Power Output Standby Mode

I Pulse-by-Pulse Over-Current Protection

I Latched Over-Voltage and Thermal Protection

I Third-Generation Switching Transistor with Proportional Drive

I Maximum ON Time and Off Time Set During Manufacture

I Internal Under-Voltage Lockout with Hysteresis

I Over-Molded SIP with Integral Isolated Heat Spreader

Always order by complete part number:

™

STR-S6707

STR-S6709

Part Number

STR-S6707

STR-S6708

STR-S6709

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

Related parts for STR-S6708

STR-S6708 Summary of contents

Page 1

... STR-S6707 STR-S6709 OFF-LINE SWITCHING REGULATORS The STR-S6707, STR-S6708, and STR-S6709 are specifically 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. ...

Page 2

... STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS STR-S6707 AND STR-S6708 FUNCTIONAL BLOCK DIAGRAM UVLO OVER-VOLT. PROTECT REF. TSD R ton FDBK 7 3300 pF ALLOWABLE PACKAGE POWER DISSIPATION 60 MOUNTING SURFACE 54 W TEMPERATURE RECOMMENDED MAX. 40 FRAME TEMP. = +100°C 20 FREE AIR 3 TEMPERATURE in ° ...

Page 3

... OVP(th 850 -1.5 V CEX STR-S6707 CE(sat) C STR-S6708 STR-S6709 STR-S6707 BE(sat) C STR-S6708 STR-S6709 off V OCP(th) V FDBK(th) V Oscillation stops INH(th) Oscillation synchronized ...

Page 4

... STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS 100 5.0 3.0 1.0 0.01 TYPICAL CHARACTERISTICS 0.1 1.0 0.03 0.3 3.0 COLLECTOR CURRENT in AMPERES 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 STR-S6709 STR-S6708 STR-S6707 10 100 30 Dwg. GK-001 ™ ...

Page 5

... Nm). Recommended metal-oxide-filled, alkyl-degenerated oil base, silicone grease: Dow Corning 340, or equivalent www.allegromicro.com WARNING: lethal potentials are present. See text APPLICATIONS INFORMATION STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS + + ...

Page 6

... STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS 0.033 +0.008 –0.004 PACKAGE Dimensions in Inches (for reference only) ±0.008 0.953 T REF. M 0.610 0.130 ±0.008 ø ±0.008 0.118 0.276 ±0.016 9 1 0.016 0.100 ±0.004 0.177 ±0.028 ...

Page 7

... Dimensions in Millimeters (controlling dimensions) ±0.2 24.2 T REF M ±0.2 15.5 3.3 ø ±0.2 3.0 7.0 ±0 0.4 2.54 0.65 ±0.1 +0.2 –0.1 LEAD CENTER NOTE: Exact body and lead configuration at vendor’s option within limits shown. STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS 5.5 ±0.2 3.3 ±0.1 5.5 4.5 ±0.7 Dwg. MK-003-9 mm ...

Page 8

... STR-S6707 STR-S6709 THRU OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATORS Part Number* Application 3002M 5 V switching regulator and switching regulator† 3004M 5 V switching regulator and Dual 9 V switching regulator S5703 Quasi-resonant flyback converter S5707 Quasi-resonant flyback converter S5708 Quasi-resonant flyback converter ...

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