CM494 Datasheet, PDF (3/9 Pages) List of Unclassifed Manufacturers – ADVANCED REGULATING PULSE WIDTH MODULATOR

BLOCK DIAGRAM
CM494
ADVANCED REGULATING PULSE WIDTH MODULATOR
RT 6
Oscillator
CT 5
Dead-Time Control
Comparator
4 ^0.1v
+
_
DTC
Error Amplifier 1
1
1IN+
+
2
_
1IN-
Error Amplifier 2
16
2IN+
+
15
_
2IN-
+
_
PWM
Comparator
3
FEEDBACK
OUTPUT CTRL
13
ID
C1
Pulse-Steering
Flip-Flop
Reference
Regulator
Q1 8
C1
9
E1
11
Q2
C2
10
E2
12
VCC
14
REF
7
GND
FUNCTION TABLE
Output Control Output Function
Connected to :
Single-Ended or
Ground
Parallel Operation
VREF
Push-Pull Alternating
Output
UM495A
Steering Control
（Output Control at
VREF）
Vs < 0.4V
Vs > 2.4V
Output Function
PWM Output at Q1
PWM Output at Q2
ORDERING INFORMATION
Part Number
CM494CP
CM494CS
Temperature Range
0℃ to 70℃
0℃ to 70℃
Package
16-PIN DPIP (P16)
16-PIN SOP (S16)
2000/12/29 Preliminary
Champion Microelectronic Corporation
Page 2