L6590 Просмотр технического описания (PDF) - STMicroelectronics
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производитель
L6590 Datasheet PDF : 23 Pages
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L6590
Figure 3. Start-up Current Generator
Icc [mA]
5.5
5
4.5
Vdrain = 60 V
Tj = -25 °C
Tj = 25 °C
4
Tj = 125 °C
3.5
3
0
2
4
6
8
10 12
Vcc [V]
Figure 4. IC Consumption Before Start-up
Icc [µA]
700
600
Tj = -25 °C
500
400
300 Tj = 125 °C
Tj = 25 °C
200
100
7 8 9 10 11 12 13 14 15
Vcc [V]
Figure 5. IC Quiescent Current
Icc [mA]
4
VFB = 2.7 V
3.8
Tj = 25 °C
3.6
3.4 Tj = 125 °C
3.2 Tj = -25 °C
3
6
8
10 12 14 16 18
Vcc [V]
Figure 6. IC Operating Current
Icc [mA]
5
VFB = 2.3 V
fsw = 65 kHz
4.5
4
Tj = 125 °C
Tj = 25 °C
Tj = -25 °C
3.5
3
7 8 9 10 11 12 13 14 15
Vcc [V]
Figure 7. IC Operating Current
Icc [mA]
4.4
VFB = 2.3 V
4.2 fsw = 22 kHz
Tj = 125 °C
4
Tj = 25 °C
3.8
3.6
Tj = -25 °C
3.4
3.2
3
7 8 9 10 11 12 13 14 15
Vcc [V]
Figure 8. Switching Frequency vs.
Temperature
fsw [kHz]
80
70
Normal operation
60
50
40
30
Standby
20
10
-50
0
50
100
150
Tj [°C]
6/23
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