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