str-s6525 Allegro MicroSystems, Inc., str-s6525 Datasheet

str-s6525

Manufacturer Part Number

str-s6525

Description

Off-line Switching Regulator ? With Power Mosfet Outpu

Manufacturer

Allegro MicroSystems, Inc.

Datasheet

1.STR-S6525.pdf (8 pages)

Current page: 1 of 8
Download datasheet (92Kb)

Supply Voltage, V

Drain-Source Voltage, V

Continuous Drain Current, I

1 ms Single-Pulse Drain Current,

Single-Pulse Avalanche Energy,

Feedback Input Current, I

Fault-Latch Trig. Input Current, I

Soft-Start Output Current, I

Over-Current Protection Voltage,

Insulation Voltage,V

Package Power Diss., P

FET Junction Temperature, T

Internal Frame Temperature, T

Operating Temperature Range,

Storage Temperature Range,

ABSOLUTE MAXIMUM RATINGS

OVER-CURRENT

FAULT-LATCH

PROTECTION

SOFT START

stg

OCP

COMMON

TRIGGER

SOURCE

.............................................. 400 mJ

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

................................................. 24 A

DRAIN

SYNC

FDBK

............................. -30 C to +125 C

V IN

25%, I

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

FLM

........................... -50 mA

........................... 35 V

WM(RMS)

FDBK

........ See Graph

OSC.

.............. 600 V

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

............ 6.0 A

....... -3.0 mA

........ 20 mA

...... +150 C

FAULT

LATCH

... +125 C

FAULT

1.0 mA

UVLO

Dwg. PK-002-1

REF.

OFF-LINE SWITCHING REGULATOR

for increased integration and reliability in off-line flyback converters

operating in a constant OFF-time mode. The device incorporates the

primary control and drive circuit with a discrete avalanche-rated high-

voltage power MOSFET.

time are fixed during manufacture. Local control circuit decoupling and

layout are optimized within the device.

with hysteresis, over-voltage protection, and thermal shutdown protect

the device during all normal and overload conditions. Over-voltage

protection, thermal shutdown, or an external fault signal be latched.

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.

counterparts represents a significant advance in off-line SMPS reliability

growth and integration.

FEATURES

Always order by complete part number: STR-S6525 .

™

STR-S6525

– WITH POWER MOSFET OUTPUT

Constant OFF-Time Converter Operating Mode

Avalanche-Rated Power MOSFET Switch

Pulse-by-Pulse Current Limiting

Latched Over-Voltage and Thermal Protection

Maximum ON Time and OFF Time Set During Manufacture

Internal Under-Voltage Lockout with Hysteresis

Over-Molded SIP with Integral Isolated Heat Spreader

External Synchronization Capability

The STR-S6525 is specifically designed to meet the requirement

Crucial system parameters such as maximum ON time and OFF

Cycle-by-cycle current limiting, soft start, under-voltage lock-out

Proven in substantial volumes, this device and its fixed-frequency

Related parts for str-s6525

str-s6525 Summary of contents

Page 1

... STR-S6525 OFF-LINE SWITCHING REGULATOR – WITH POWER MOSFET OUTPUT The STR-S6525 is specifically designed to meet the requirement for increased integration and reliability in off-line flyback converters operating in a constant OFF-time mode. The device incorporates the primary control and drive circuit with a discrete avalanche-rated high- voltage power MOSFET ...

Page 2

... STR-S6525 OFF-LINE SWITCHING REGULATOR FUNCTIONAL BLOCK DIAGRAM UVLO 2 k SOFT REF. 7 START TSD TRIGGER FAULT-LATCH 8 TRIGGER ALLOWABLE PACKAGE POWER DISSIPATION 60 MOUNTING SURFACE TEMPERATURE 54 W RECOMMENDED MAX. 40 FRAME TEMP. = +100 C 20 FREE AIR 3 TEMPERATURE OVER-VOLT. FAULT PROTECT LATCH ...

Page 3

... STR-S6525 OFF-LINE SWITCHING REGULATOR ALLOWABLE AVALANCHE ENERGY ELECTRICAL CHARACTERISTICS Common (pin 3) (unless otherwise noted). Characteristic On-State Voltage Under-Voltage Lockout Over-Voltage Threshold FET Leakage Current FET ON Resistance Output Fall Time Maximum ON Time Minimum OFF Time Over-Current Threshold Feedback Threshold Soft-Start Voltage Sync. Trigger Threshold Volt. ...

Page 4

... STR-S6525 OFF-LINE SWITCHING REGULATOR TYPICAL CHARACTERISTICS 0.2 0.4 0.6 0.8 FEEDBACK CURRENT in mA 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 1.0 Dwg. GK-019 ™ ...

Page 5

... Recommended mounting hardware torque: 4.34 – 5.79 lbf•ft (6 – 8 kg•cm or 0.588 – 0.784 Nm). Recommended metal-oxide-filled, alkyl-degenerated oil base, silicone grease: Dow Corning 340, or equivalent TYPICAL APPLICATION WARNING: lethal potentials are present. See text. STR-S6525 ...

Page 6

... STR-S6525 OFF-LINE SWITCHING REGULATOR 0.033 +0.008 –0.004 PACKAGE CENTER Dimensions in Inches (for reference only) 0.953 0.008 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 LEAD CENTER NOTE: Exact body and lead configuration at vendor’s option within limits shown. ...

Page 7

... STR-S6525 OFF-LINE SWITCHING REGULATOR 0.85 +0.2 –0.1 The products described here are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the design of their products ...

Page 8

... STR-S6525 OFF-LINE SWITCHING REGULATOR POWER CONVERSION/POWER MANAGEMENT SWITCHING REGULATOR PMCMs 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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