Device

Operating

Temperature Range

Package

MC33363

SEMICONDUCTOR

TECHNICAL DATA

HIGH VOLTAGE

OFF–LINE

SWITCHING REGULATOR

ORDERING INFORMATION

MC33363DW

TJ = –25° to +125°C

SOP–16L

P SUFFIX

PLASTIC PACKAGE

CASE 648E

(DIP–16)

16

1

116

13

12

11

10

9

3

4

5

6

7

8

(Top View)

Startup Input

VCC

Gnd

RT

CT

Regulator Output

Power Switch

Drain

Gnd

Compensation

PIN CONNECTIONS

Order this document by MC33363/D

Overvoltage

Protection Input

Voltage Feedback

Input

DW SUFFIX

PLASTIC PACKAGE

CASE 751N

(SOP–16L)

16

1

MC33363P

DIP–16

1

MOTOROLA ANALOG IC DEVICE DATA

High Voltage Switching

Regulator

The MC33363 is a monolithic high voltage switching regulator that is

specifically designed to operate from a rectified 240 Vac line source. This

integrated circuit features an on–chip 700 V/1.0 A SenseFET power switch,

450 V active off–line startup FET, duty cycle controlled oscillator, current

limiting comparator with a programmable threshold and leading edge

blanking, latching pulse width modulator for double pulse suppression, high

gain error amplifier, and a trimmed internal bandgap reference. Protective

features include cycle–by–cycle current limiting, input undervoltage lockout

with hysteresis, output overvoltage protection, and thermal shutdown. This

device is available in a 16–lead dual–in–line and wide body surface mount

packages.

Simplified Application

This device contains 221 active transistors.

Startup

Reg

Osc

Thermal

LEB

PWM

DC Output

Startup Input

Gnd

4, 5, 12, 13

Mirror

7

AC Input

Regulator

Output

6

8

CT

RT

PWM Latch

EA

Ipk

VCC

3

11

16

9

10

1

Compensation

Voltage

Feedback

Input

Power Switch

Drain

Overvoltage

Protection

Input

Driver

OVP

UVLO

S

R

Q

© Motorola, Inc. 1998

Rev 3