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MC33363APG

High Voltage Switching Regulator

ON Semiconductor 

MC33363A

High Voltage Switching

Regulator

The MC33363A 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 / 1.5 A

SENSEFETt power switch, 500 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.

Features

• Enhanced Power Capability Over MC33363

• On−Chip 700 V, 1.5 A SENSEFET Power Switch

• Rectified 240 Vac Line Source Operation

• On−Chip 500 V Active Off−Line Startup FET

• Latching PWM for Double Pulse Suppression

• Cycle−By−Cycle Current Limiting

• Input Undervoltage Lockout with Hysteresis

• Output Overvoltage Protection Comparator

• Trimmed Internal Bandgap Reference

• Internal Thermal Shutdown

• Pb−Free Packages are Available*

16

1

http://onsemi.com

MARKING

DIAGRAMS

PDIP−16

P SUFFIX

CASE 648E

MC33363AP

AWLYYWWG

16

1

SO−16W

DW SUFFIX

CASE 751N

MC33363ADW

AWLYYWWG

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G = Pb−Free Package

AC Input

Startup Input 1

PIN CONNECTIONS

Startup Input 1

16

Power Switch

Drain

Regulator

Output

8

6

RT

CT 7

Mirror

OSC

PWM

Thermal

Startup

Reg

PWM Latch

S

Driver

Q

R

VCC

UVLO

3

Overvoltage

Protection

Input

OVP 11

16

Power Switch

Drain

LEB

Ipk

Compensation

9

EA

10

GND 4, 5, 12, 13

Voltage

Feedback

Input

This device contains 221 active transistors.

Figure 1. Simplified Application

DC Output

VCC 3

4

GND

5

RT 6

CT 7

Regulator Output 8

13

GND

12

11

Overvoltage

Protection Input

10 Voltage Feedback

Input

9 Compensation

(Top View)

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 7 of this data sheet.

*For additional information on our Pb−Free strategy

and soldering details, please download the

ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

© Semiconductor Components Industries, LLC, 2005

1

November, 2005 − Rev. 5

Publication Order Number:

MC33363A/D

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