Off-Line Quasi-Resonant Switching Regulators
STR-X6757
Functional
Block Diagram
Terminal List Table
Number
Name
Description
Functions
1
2
3
4
5
D
Drain
MOSFET drain
MOSFET source
Ground
S
Source
GND
VCC
SS/OLP
Ground terminal
Power supply terminal
Input of power supply for control circuit
Soft Start/Overload Protection terminal
Input to set delay for Overload Protection and Soft Start operation
Input for Constant Voltage Control and Burst (intermittent) Mode
oscillation control signals
6
7
FB
Feedback terminal
OCP/BD
Overcurrent Protection/Bottom Detection
Input for Overcurrent Detection and Bottom Detection signals
Allegro MicroSystems, Inc.
115 Northeast Cutoff
3
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
