Device

Operating

Temperature Range

Package

MC33363B

SEMICONDUCTOR

TECHNICAL DATA

HIGH VOLTAGE

OFF–LINE

SWITCHING REGULATOR

ORDERING INFORMATION

MC33363BDW

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 MC33363B/D

Overvoltage

Protection Input

Voltage Feedback

Input

DW SUFFIX

PLASTIC PACKAGE

CASE 751N

(SOP–16L)

16

1

MC33363BP

DIP–16

1

MOTOROLA ANALOG IC DEVICE DATA

High Voltage Switching

Regulator

The MC33363B 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, overvoltage protection, and thermal shutdown. This device

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

packages.

Simplified Application

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. 1999

Rev 1