Off-Line Quasi-Resonant Switching Regulators

STR-X6759N

2

Selection Guide

Part Number

Package

STR-X6759N

TO-3P

All performance characteristics given are typical values for circuit or

system baseline design only and are at the nominal operating voltage and

Parameter

Symbol

Conditions

Rating

Unit

Single pulse

22

A

22

A

500

mJ

Input Voltage for Controller (MIC)

35

V

SS/OLP Terminal Voltage

–0.5 to 6.0

V

FB Terminal Inflow Current

10

mA

FB Terminal Voltage

–0.5 to 9.0

V

OCP/BD Terminal Voltage

–1.5 to 5.0

V

With infinite heatsink

46

W

Without heatsink

2.8

W

Controller (MIC) Power Dissipation

0.8

W

Operating Internal Leadframe Temperature

Recommended operation temperature, see cautions

–20 to 125

°C

Operating Ambient Temperature

–20 to 125

°C

Storage Temperature

–40 to 125

°C

Channel Temperature

150

°C

1

Refer to MOSFET ASO curve

2

3

Refer to Avalanche Energy Derating curve

4

Refer to MOSFET Ta-PD1 curve

Description (continued)

Applications include the following:

▪ Set Top Box

▪ LCD PC monitor, LCD TV

▪ Printer, Scanner

▪ SMPS power supplies

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com