MC44603P ON Semiconductor, MC44603P Datasheet - Page 10

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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3.2
3.1
3.0
2.9
2.8
140
120
100
8.0
6.0
4.0
2.0
16
14
12
10
80
-50
0
-50
2.0
Figure 16. Propagation Delay Current Sense
T
R
C
V
V
A
FB
CS
ref
T
= 25°C
= 820 pF
4.0
Input to Output versus Temperature
-25
= 10 k
= 0 V
= 0 V
-25
Figure 18. Supply Current versus
Figure 14. Current Sense Gain
T
T
A
A
6.0
, AMBIENT TEMPERATURE (°C)
versus Temperature
, AMBIENT TEMPERATURE (°C)
V
0
CC
0
Supply Voltage
, SUPPLY VOLTAGE (V)
8.0
25
25
10
50
50
12
V
R
C
CC
ref
T
V
R
C
= 820 pF
CC
ref
T
= 10 k
= 12 V
= 820 pF
75
= 10 k
= 12 V
75
14
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100
100
16
10
100
60
40
20
80
0
0
Power Dissipation versus P.C.B. Copper Length
21.5
21.0
20.5
20.0
19.5
19.0
0.35
0.30
0.25
0.20
0.15
0.10
0.05
Figure 15. Thermal Resistance and Maximum
-50
0
0
Figure 19. Power Supply Zener Voltage
10
Figure 17. Startup Current versus V
2.0
-25
R
P
D(max)
qJA
L, LENGTH OF COPPER (mm)
T
A
for T
4.0
, AMBIENT TEMPERATURE (°C)
versus Temperature
20
V
0
CC
A
= 70°C
, SUPPLY VOLTAGE (V)
6.0
Printed circuit board heatsink example
Graphs represent symmetrical layout
L
25
30
É É É É
Copper
2.0 oz
8.0
L
50
É É É
É É É
40
10
I
CC
R
C
ref
T
= 25 mA
= 820 pF
3.0 mm
= 10 k
75
CC
12
50
4.0
3.0
2.0
5.0
1.0
0
100
14

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