The Series STR-F6600 is specifically designed to satisfy the require-

ments for increased integration and reliability in off-line quasi-resonant

flyback converters. The series incorporates a primary control and drive

circuit with discrete avalanche-rated power MOSFETs.

Covering the power range from below 25 watts up to 300 watts for

100/115/230 VAC inputs, and up to 150 watts for 85 to 265 VAC

universal input, these devices can be used in a range of applications,

from battery chargers and set top boxes, to televisions, monitors, and

industrial power supply units.

Cycle-by-cycle current limiting, under-voltage lockout with hyster-

esis, over-voltage protection, and thermal shutdown protects the power

supply during the normal overload and fault conditions. Over-voltage

protection and thermal shutdown are latched after a short delay. The

latch may be reset by cycling the input supply. Low-current startup and

a low-power standby mode selected from the secondary circuit completes

a comprehensive suite of features. The series is provided in a five-pin

overmolded TO-3P style package, affording dielectric isolation without

compromising thermal characteristics.

FEATURES

s Flyback Operation with Quasi-Resonant Soft Switching

for Low Power Dissipation and EMI

s Rugged Avalanche-Rated MOSFET

DS(on)

s Full Over-Current Protection (no blanking)

s Under-Voltage Lockout with Hysteresis

s Over-Voltage Protection

s Direct Voltage Feedback

s Low Start-up Current (<400

µA)

s Low-Frequency, Low-Power Standby Operation

s Overmolded 5-Pin Package

OFF-LINE QUASI-RESONANT

FLYBACK SWITCHING REGULATORS

Always order by complete part number, e.g., STR-F6652 .

™

Series STR-F6600

ABSOLUTE MAXIMUM RATINGS

at T

Control Supply Voltage, V

35 V

Drain-Source Voltage, V

DS

Series STR-F6620 . . . . . . . . . . . . 450 V

Series STR-F6630 . . . . . . . . . . . . 500 V

Series STR-F6650 . . . . . . . . . . . . 650 V

Series STR-F6670 . . . . . . . . . . . . 900 V

Drain Switching Current, I

See Table

Peak Drain Current, I

See Table

Avalanche Energy, E

See Table

OCP/FB Voltage Range,

V

-0.3 V to +6 V

Package Power Dissipation, P

D

control (V

0.8 W

total . . . . . . . . . . . . . . . . . . . See Graph

FET Channel Temperature, T

+150

Internal Frame Temperature, T

+125

Operating Temperature Range,

T

-20

Storage Temperature Range,

T

-40

LATCH

Dwg. PK-011-1

UVLO

OVP

TSD

OSC.

FDBK

INTERIM DATA SHEET

(Subject to change without notice)

February 22, 2000

TM