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MC44602 Datasheet(PDF) 6 Page - Motorola, Inc

Part No. MC44602
Description  HIGH PERFORMANCE CURRENT MODE CONTROLLER
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC44602 Datasheet(HTML) 6 Page - Motorola, Inc

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MC44602
6
MOTOROLA ANALOG IC DEVICE DATA
80
Figure 9. Voltage Feedback Input,
Voltage versus Current
0
0
100
80
60
40
20
10
20
30
40
50
L, LENGTH OF COPPER (mm)
R
θJA
5.0
4.0
3.0
2.0
1.0
0
PD(max) for TA = 70°C
Figure 10. Voltage Feedback Input
versus Current Sense Clamp Level
Figure 11. Reference Short Circuit Current
versus Temperature
Figure 12. Reference Line and Load
Regulation versus Temperature
Figure 13. Reference Voltage Change
versus Source Current
Figure 14. Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
1.0
–500
Iin, INPUT CURRENT (µA)
1.4
1.8
2.2
2.6
–400
–300
–200
–100
0
VClamp = 1.0 V
VClamp = 0.7 V
VClamp = 0.3 V
VCC = 12 V
TA = 25°C
VClamp = 0.1 V
VClamp = 0.5 V
1.0
0
VClamp, CURRENT SENSE CLAMP LEVEL (V)
1.4
1.8
2.2
2.6
0.2
0.4
0.6
0.8
1.0
TA = 125°C
VCC = 12 V
TA = –55°C
40
–55
TA, AMBIENT TEMPERATURE (°C)
120
160
200
–25
0
25
50
75
100
125
VCC = 12 V
RL ≤ 0.1 Ω
3.0
–55
TA, AMBIENT TEMPERATURE (°C)
–25
0
25
50
75
100
125
2.0
1.0
0
–1.0
–2.0
–3.0
–4.0
–5.0
Line Regulation
VCC = 12 V to 18 V
Iref = 0 mA
0
Iref, REFERENCE SOURCE CURRENT (mA)
0
30
60
90
120
150
180
–5.0
–10
–15
–20
–25
–30
TA = 125°C
TA = 25°C
TA = –55°C
Load Regulation
VCC = 12 V
Iref = 1.0 mA to 20 mA
TA = 25°C
VCC = 12 V
Graphs represent symmetrical layout
3.0 mm
Printed circuit board heatsink example
L
L
2.0 oz
Copper


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