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IRIS-W6756

Features

• 6-pin SIP type full molded package, optimum IC for low-height SMPS,

distance between high and low voltage pins is 1.8 mm with pin elimination.

• Oscillator is provided on the monolithic control with adopting On-Chip

Trimming Technology

• Small temperature characteristics variation by adopting a comparator to

compensate for temperature on the control part.

• Low start-up circuit current (100uA max)

•Avalanche energy guaranteed MOSFET with high VDSS

The built-in power MOSFET simplifies the surge

absorption

circuit since the MOSFET guarantees the avalanche energy.

No VDSS de-rating is required.

• Built-in constant voltage drive circuit

• Built-in step drive circuit

• Built-in low frequency PWM mode (≒22 kHz)

• UVLO Burst Standby

• Two operational modes by auto switching functions according to load

For middle~heavy load operation : QR mode

For light~middle load operation : 1 Bottom Skip mode

• Various kinds of protection functions

Pulse-by-Pulse Overcurrent Protection (OCP)

Overvoltage Protection with Latch mode (OVP)

Overload Protection with Latch mode (OLP)

The maximum limit of on-time

Package Outline

TO-220 Fullpack (7 Lead modified)

Description

IRIS-W6756 is a hybrid IC consisting of a power MOSFET and a controller IC, designed for Quasi-Resonant (including low frequency PWM)

standardizing of a power supply system reducing external component count and simplifying the circuit design.

Typical Connection Diagram

Type

MOSFET

VDSS(V)

RDS(ON)

MAX

AC input(V)

Pout(W)

Note 1

230±15%

240

85 to 264

140

IRIS-W6756

650

0.73Ω

Key Specifications

Note 1:

The Pout (W) represents the thermal rating at Quasi-Resonant operation, and the peak power output is obtained by approximating 120 to

140 % of the above listed value. When the output voltage is low, and the ON-duty is narrow, the Pout (W) shall become lower than that

of the above.

INTEGRATED SWITCHER

D

DD

D

S

SS

S/

//

/G

GG

GN

NN

ND

DD

D

F

FF

FB

BB

B

O

OO

OC

CC

CP

PP

P/

//

/B

BB

BD

DD

D

S

SS

SS

SS

S/

//

/O

OO

OL

LL

LP

PP

P

V

VV

Vc

cc

cc

cc

c

I

II

IR

RR

RI

II

IS

SS

S-

--

-W

WW

W6

66

67

77

756

56

56

56

Data Sheet No. PD 96953A