LinearVoltageRegulators Motorola Semiconductor Products, LinearVoltageRegulators Datasheet - Page 24

• Manufacturer Part Number: LinearVoltageRegulators
• Description: Analog And Interface Integratedcircuits Selector Guide & Cross Reference
• Manufacturer: Motorola Semiconductor Products

Switching Regulator Control Circuits
Very High Voltage Switching Regulator
MC33363DW, P, MC33363ADW, AP
T J = –25 to +125 C, Case 751N, 648E
lator 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 (1.5 A in MC33363A) SenseFET power
switch, 450 V (500 V in MC33363A) 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 hyster-
esis, output overvoltage protection, and thermal shutdown.
This device is available in a 16–lead dual–in–line and wide
body surface mount packages.
ANALOG AND INTERFACE INTEGRATED CIRCUITS
SELECTOR GUIDE & CROSS REFERENCE
The MC33363 is a monolithic high voltage switching regu-
Regulator
R T
C T
Output
AC Input
8
6
7
Thermal
Mirror
PWM
Osc
Gnd
4, 5, 12, 13
Reg
PWM Latch
(continued)
S
R
I pk
Startup
Q
Startup Input
Driver
EA
On–Chip 700 V, 1.0 A SenseFET Power Switch
On–Chip 700 V, 1.5 A SenseFET Power Switch
Rectified 240 Vac Line Source Operation
On–Chip 450 V Active Off–Line Startup FET
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
in MC33363A
in MC33363A
LEB
1
UVLO
OVP
V CC
Overvoltage
Protection Input
Power Switch
Drain
Compensation
Voltage
Feedback
Input
11
16
10
3
9
MOTOROLA
DC Output
53