Daewoo DTR Series Spezifikationen PDF herunterladen (Seite 31)

STR-S6708 (Hybrid IC for a Switching Regulator)

(1) General Description

The STR-S6708 is a Hybrid IC with a built in power transistor and a separate excitation control IC,

designed for converter type switching mode power supply applications.

The IC is capable of quasi-resonant mode and requires small number of external component.

(2) Feature

•

Small SIP isolated package : Resin sealed type (transfer mold)

•

Lower power dissipation at a lighter load

•

Many protection function : - Pulse-by-pulse over current protection

- Over-voltage protection with a latch

- Thermal protection with a latch

These protection functions are incorporated and can be latched with an external signal.

(3) Block Diagram

(4) Pin Description

No. of Terminal Symbol Description Function

1 C Collector Terminal P Tr Collector

2 GND Ground Terminal Ground (P Tr Emitter)

3 B Base Terminal P Tr Base

4 SINK Sink Terminal Base Current (I B2) input

5 DRIVE Drive Terminal Base Drive Current (I B1) Output

6 OCP Overcurrent Protection Overcurrent Sensing Signal Input

Terminal

7 F/B Feedback Terminal Constant voltage Control Signal Input

8 INH Inhibit Terminal off Time Synchronizing

Latch Terminal Latch Circuit Operation Signal Input

9 VIN VIN Terminal Control Circuit Power Supply Input

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Daewoo DTR Series Spezifikationen Seite 31