OBSOLETE

STR-X6769B

Package Image

Package : TO3PF-7L

RoHS : YES

Data Sheet(1.4MB)

The STR-X6700 series products are power ICs for quasi-resonant type switching power supplies, incorporating a power MOSFET and a controll IC, The product achieves highefficiency and low noise power supply systems by the quasi-resonant operation and the bottom-skip quasi-resonant operation.
A compact 6 pin full mold package (TO-3P, Sanken Electric designation: 3GR-X), helps realize low component count, and high performance-to-cost power supply.

Data Download

Design Support

  • Technical Documents

Technical Documents

Features

    ・Multi-Mode Control
    　-In Standby (Under Standby Load Conditions):
    　　UVLO Intermittent Oscillation by low output voltage --- Switched by Standby Signal, or
    　　Auto Burst-Oscillation --- Switched Automatically
    　-Under Low to Middle Load Conditions: Bottom-Skip Quasi-Resonant Operation (Bottom-Skip QR)
    　-Under Middle to Rating (or Heavy) Load Conditions: Quasi-Resonant Operation (QR)
    ・Current-mode control
    ・Built-in PWM Oscillator
    ・Soft-Start Function
    ・Step-Drive Function
    ・Built-in Maximum ON Time Limitation Circuit
    ・Input Compensation at Overcurrent
    ・Built-in Avalanche Energy Guaranteed High-Voltage Power MOSFET
    ・Protection functions:
    　Overcurrent protection (OCP): pulse by pulse
    　Overload protection (OLP): latch shutdown
    　Overvoltage protection(OVP): latch

Application

・Digital appliances
・White goods
・Office automation (OA) equipment
・Industrial equipment
・Telecommunication equipment
・Other S.M.P.S

Specifications

Control Method Quasi-Resonant
Type Power IC
Output Current
RDS(ON) (max.) 0.660 Ω
VDSS (min.) 800 V
VCC (max.) 35 V
Oscillating Frequency(typ.) ― kHz
OCP YES
OLP Latch
OVP Latch
Brown-in / out NO
TSD Latch
Power Consumption at No Load
Package Weight (Typ.)
Automotive Qualified

Typical Application

Typical Application

Block Diagram

Block Diagram

Selection Guide

STR-X6700 Series Lineup
Part numberBurst operationBottom Skip QR
STR-X67xxNoYes
STR-X67xxBNoNo
STR-X6729
STR-X67xxF		YesNo
STR-X67xxNNoYes

Questions or Comments?

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