LT1725IS Просмотр технического описания (PDF) - Linear Technology
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LT1725IS Datasheet PDF : 28 Pages
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LT1725
TYPICAL PERFOR A CE CHARACTERISTICS
VCC Turn-On Voltage vs
Temperature
16.00
15.75
15.50
15.25
15.00
14.75
14.50
14.25
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G01
Supply Current vs Temperature
13
12
11
10
9
8
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G04
VCC Hysteresis Voltage vs
Temperature
6.50
6.25
6.00
5.75
5.50
5.25
5.00
4.75
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G02
UVLO Pin Input Current vs
Temperature
1
0
VUVLO = 1.2V
–1
–2
VUVLO = 1.3V
–3
–4
–5
–6
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G05
VGATE vs ISINK
1.0
0.8
TA = 125°C
0.6
TA = 25°C
0.4
0.2
TA = –55°C
0
1
10
100
1000
ISINK (mA)
1725 G07
VCC-VGATE vs ISOURCE
0
–0.5
–1.0
–1.5
TA = 25°C
–2.0 TA = –55°C
–2.5
TA = 125°C
–3.0
1
10
100
ISOURCE (mA)
1000
1725 G08
4
Start-Up Current vs Temperature
250
200
150
100
50
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G03
Oscillator Frequency vs
Temperature
115
110
105
100
95
90
85
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G06
VC Clamp Voltage, Switching
Threshold vs Temperature
3.0
2.5
CLAMP VOLTAGE
2.0
1.5
1.0 SWITCHING THRESHOLD
0.5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1725 G09
1725fa
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