STR-W6756 Просмотр технического описания (PDF) - Sanken Electric co.,ltd.

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STR-W6756

Quasi-Resonant Topology Primary Switching Regulators

Sanken Electric co.,ltd. 

STR-W6756

Features and Benefits (continued)

▫ Pulse-by-pulse drain overcurrent limiting

▫ Overvoltage protection (bias winding voltage sensing),

with latch

▫ Overload protection with latch

▫ Maximum on-time limit

Quasi-Resonant Topology

Primary Switching Regulators

Description (continued)

diodes during the start-up sequence. Various protections such as

overvoltage, overload, overcurrent, maximum on-time protections

and avalanche-energy-guaranteed MOSFET secure good system-

level reliability.

Applications include the following:

▪ Set Top Box

▪ LCD PC monitor, LCD TV

▪ Printer, Scanner

▪ SMPS power supplies

Selection Guide

Part Number

STR-W6756

Package

TO-220

Absolute Maximum Ratings at TA = 25°C

Parameter

Symbol

Conditions

Drain Current1

Maximum Switching Current2

Single Pulse Avalanche Energy3

Input Voltage for Controller (MIC)

SS/OLP Terminal Voltage

IDpeak

IDmax

EAS

VCC

VSSOLP

Single pulse

TA = –20°C to 125°C

Single pulse, VDD = 99 V, L = 20 mH, ILpeak = 6.05 A

FB Terminal Inflow Current

IFB

FB Terminal Voltage

VFB IFB within the limits of IFB

OCP/BD Terminal Voltage

MOSFET Power Dissipation4

VOCPBD

PD1

With infinite heatsink

Without heatsink

Controller (MIC) Power Dissipation

PD2

VCC × ICC

Operating Internal Leadframe Temperature

Operating Ambient Temperature

TF Recommended operation temperature, see cautions

TOP

Storage Temperature

Tstg

Channel Temperature

Tch

1Refer to figure 2

2IDMAX is the drain current determined by the drive voltage of the IC and the threshold voltage, Vth, of the MOSFET

3Refer to figure 3

4Refer to figure 5

Rating

Unit

15

A

15

A

400

mJ

35

V

–0.5 to 6.0 V

10

mA

–0.5 to 9.0 V

–1.5 to 5.0 V

29

W

1.3

W

0.8

W

–20 to 115 °C

–20 to 115 °C

–40 to 125 °C

150

°C

All performance characteristics given are typical values for circuit or

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

an ambient temperature, TA, of 25°C, unless otherwise stated.

28103.33

2

SANKEN ELECTRIC CO., LTD.

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