Order this document by MC33363/D
HIGH VOLTAGE
OFF–LINE
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.
SEMICONDUCTOR
TECHNICAL DATA
16
• On–Chip 700 V, 1.0 A SenseFET Power Switch
• Rectified 240 Vac Line Source Operation
• On–Chip 450 V Active Off–Line Startup FET
• Latching PWM for Double Pulse Suppression
• Cycle–By–Cycle Current Limiting
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751N
(SOP–16L)
• Input Undervoltage Lockout with Hysteresis
• Output Overvoltage Protection Comparator
• Trimmed Internal Bandgap Reference
• Internal Thermal Shutdown
16
1
P SUFFIX
PLASTIC PACKAGE
CASE 648E
Simplified Application
(DIP–16)
AC Input
Startup Input
1
PIN CONNECTIONS
Regulator
Output
Startup
Power Switch
Drain
Mirror
V
Startup Input
1
16
CC
Reg
3
8
DC Output
UVLO
OVP
Overvoltage
Protection
Input
V
3
4
5
6
7
8
CC
6
13
12
11
10
9
R
T
11
16
Gnd
Gnd
PWM Latch
Osc
C
Power Switch
Drain
7
Overvoltage
Protection Input
Voltage Feedback
Input
T
Driver
S
R
T
Q
C
T
R
PWM
Compensation
Regulator Output
LEB
I
pk
Compensation
9
(Top View)
Thermal
ORDERING INFORMATION
Operating
10
EA
Voltage
Feedback
Input
Temperature Range
Device
Package
SOP–16L
DIP–16
Gnd
4, 5, 12, 13
MC33363DW
MC33363P
T = –25° to +125°C
J
This device contains 221 active transistors.
Motorola, Inc. 1998
Rev 3
1
MOTOROLA ANALOG IC DEVICE DATA