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L6590A Datasheet(PDF) 7 Page - STMicroelectronics

No. de pieza L6590A
Descripción Electrónicos  FULLY INTEGRATED POWER SUPPLY
PDF  19 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6590A Datasheet(HTML) 7 Page - STMicroelectronics

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L6590A
Figure 7. IC Operating Current
Figure 8. Switching Frequency vs.
Temperature
Figure 9. Vcc clamp vs. Temperature
Figure 10. OVP Threshold vs. Temperature
Figure 11. OCP Threshold vs. Current Slope
Figure 12. OCP threshold vs. Temperature
7
8
9
10
11
12
13
14
15
3
3.2
3.4
3.6
3.8
4
4.2
4.4
Vcc [V]
Icc [mA]
Tj = -25 °C
Tj = 25 °C
Tj = 125 °C
MOSFET switching @ 22 kHz
-50
0
50
100
150
10
20
30
40
50
60
70
80
Tj [°C]
fsw [kHz]
Normal operation
Standby
-50
0
50
100
150
17
17.2
17.4
17.6
17.8
18
Tj [°C]
VCCclamp [V]
Iclamp =20mA
Iclamp =10mA
-50
0
50
100
150
15
15.2
15.4
15.6
15.8
16
Tj [°C]
Vth [V]
50
100
150
200
250
0.96
0.98
1
1.02
1.04
1.06
dI/dt [mA/µs]
Ipklim / (Ipklim @ di/dt = 120 mA/µs)
Tj = 25 °C
-50
0
50
100
150
0.98
1
1.02
1.04
1.06
1.08
1.1
Tj [°C]
Ipklim / (Ipklim @ Tj = 25°C)
di/dt = 120 mA/µs



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