MC33362 Datasheet, PDF (1/12 Pages) ON Semiconductor – HIGH VOLTAGE OFF-LINE SWITCHING REGULATOR

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Advance Information
High Voltage Switching
Regulator
The MC33362 is a monolithic high voltage switching regulator that is
specifically designed to operate from a rectified 120 VAC line source. This
integrated circuit features an on–chip 500 V/2.0 A SenseFET power switch,
250 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.
• On–Chip 500 V, 2.0 A SenseFET Power Switch
• Rectified 120 VAC Line Source Operation
• On–Chip 250 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
Simplified Application
MC33362
HIGH VOLTAGE
OFF–LINE
SWITCHING REGULATOR
SEMICONDUCTOR
TECHNICAL DATA
16
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751N
(SOP–16L)
16
1
P SUFFIX
PLASTIC PACKAGE
CASE 648E
(DIP–16)
AC Input
Startup Input 1
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
Ipk
LEB
Compensation
9
EA
10
Gnd 4, 5, 12, 13
Voltage
Feedback
Input
DC Output
This device contains 221 active transistors.
This document contains information on a new product. Specifications and information herein
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PIN CONNECTIONS
Startup Input 1
16
Power Switch
Drain
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
Device
Operating
Temperature Range Package
MC33362DW
SOP–16L
TJ = –25° to +125°C
MC33362P
DIP–16
© Motorola, Inc. 1996
Rev 2
1