STC494
Pulse Width Modulation
Description
The STC494 is a monolithic integrated circuit which includes all the necessary building blocks
for the design of pulse width modulate(PWM) switching power supplies, including push-pull,
bridge and series configuration. The device can operate at switching frequencies between
1KHz and 300KHz and output voltage up to 40V. The STC494 is specified over an operating
temperature range of -40 to 85
.
Features
Uncommitted output transistors capable of 200mA source or sink
Internal protection from double pulsing of out-puts with narrow pulse widths or with
supply voltages bellows specified limits
Easily synchronized to other circuits
Dead time control comparator
Output control selects single-ended or push-pull operation
Ordering Information
Type NO.
STC494
Marking
STC494
Package Code
SOP-16
Outline Dimensions
unit :
mm
PIN Connections
1. Non-INV Input
2. INV Input
3. Feed-Back
4. Dead-Time Control
5. C
T
6. R
T
7. GND
8. C1
9. E1
10. E2
11. C2
12. Vcc
13 Output Control
14. Ref Out
15. INV-Input
16. Non-INV Input
1
SUNTAC [ SUNTAC ELECTRONIC CORP. ]
