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Part Name
Description
MC44603 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC44603
Mixed frequency mode greenline PWW controller
Motorola => Freescale
MC44603 Datasheet PDF : 24 Pages
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MC44603
Representative Block Diagram
RF
Stby
Rref
RF
Stby
15 16 Vref
Negative
R
Active
Q
Clamp
S
UVLO2
Demag
Detect
8
+
65 mV
+
Sync
3.7 V
Input
9
Vref
0.4 Iref
+
0.7 V
VDemag
Out
Synchro
VOSC
prot
Reference
Block
+
VCC
14.5 V/7.5 V
Vref Iref IF
Stby
18.0 V
1.0 V
1.6 V
CT
10
+
R
Q
R
S
Q
S
CT
3.6 V
VOSC
S
RPwr
Stby
12
Feed–
back
14
0.4 Iref
Vref Vref
0.4 Iref
0.6 Iref
Vref
0.8 Iref
IDischarge
Vref
Vref
0.25
IF
Stby 0.2 Iref
VCC
1.0 mA
IDischarge/2
2R
Current Mirror X2
Q
R
Thermal
Shutdown
Vref
0.4 Iref
2.0
µ
s
Delay
Vref
5.0
µ
s
Delay
+
1.6 V
+
2.5 V
VOVP
Out
Vref
VCC
11.6 k
2.0 k
+
Compen–
2.5 V
sation
Error Amplifier
13
5
Foldback
Input
1.0 V
UVLO1
2.4 V
5.0 mA
VCC
+
9.0 V
VCC
1
Vaux
To Power
Transforme
VC
2
Output
3
4
Gnd
OVP
6
ROVP
Current
Sense Input
7
= Sink only
=
Positive True Logic
11 SS/Dmax/VM
RSS
CSS
This device contains 243 active transistors.
MOTOROLA ANALOG IC DEVICE DATA
5
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