MC44603P ON Semiconductor, MC44603P Datasheet - Page 7

Other Power Management Voltage/Current PWM

MC44603P

Manufacturer Part Number
MC44603P
Description
Other Power Management Voltage/Current PWM
Manufacturer
ON Semiconductor
Type
PWM Mode Controllerr
Datasheet

Specifications of MC44603P

Input Voltage Range
18 V
Mounting Style
Through Hole
Package / Case
PDIP-16
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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Compensation
Foldback
R
Demag
Pwr Stby
Detect
Feed-
Sync
Input
Input
back
C
C
10
12
14
13
T
8
9
5
T
0.4 I
1.0 V
1.6 V
+
Negative
Active
Clamp
ref
0.4 I
2.5 V
V
ref
ref
+
65 mV
+
0.4 I
V
V
3.7 V
3.6 V
ref
CC
ref
1.0 mA
0.7 V
V
Q
+
Error Amplifier
ref
R
S
+
0.6 I
= Sink only
=
R
S
ref
Positive True Logic
Q
2R
0.8 I
ref
I
Discharge/2
R
R
S
V
ref
V
Q
Demag Out
Figure 1. Representative Block Diagram
Synchro
V
1.0 V
I
Discharge
ref
This device contains 243 active transistors.
0.25
I
F Stby
V
OSC prot
Current Mirror X2
http://onsemi.com
V
ref
0.2 I
R
V
F Stby
OSC
ref
7
R
R
SS
2.4 V
F Stby
0.4 I
1.6 V
V
ref
15 16
11
ref
+
V
Reference
ref
Shutdown
Block
5.0 mA
Thermal
SS/D
C
I
ref
SS
S
R
V
max
ref
Q
/VM
I
F Stby
+ 2.5 V
R
5.0 ms
Delay
UVLO2
ref
V
2.0 ms
ref
Delay
14.5 V/7.5 V
UVLO1
+
V
V
Out
CC
V
OVP
ref
11.6 k
+
V
2.0 k
9.0 V
CC
V
18.0 V
CC
1
2
3
4
6
7
V
V
Output
GND
OVP
Current
Sense Input
R
CC
C
OVP
Transformer
To Power
V
aux

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