SC1548 Просмотр технического описания (PDF) - Semtech Corporation
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SC1548 Datasheet PDF : 14 Pages
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SC1548
POWER MANAGEMENT
Typical Characteristics (Cont.)(1)
Disable Delay Time vs.
200
VIN = 12V
175
Junction Temperature
150
125
100
75
50
25
0
0
25
50
75
100
125
TJ (°C)
Drive Output Voltage vs.
Junction Temperature
12.00
11.50
VIN = 12V
VSNS = 0V
IDRV = 0mA
11.00
10.50
10.00
9.50
9.00
0
25
50
75
100
125
TJ (°C)
OCP Trip Threshold (SC1548CSK-1.8)
vs. Junction Temperature
1.2
VIN = 12V
VEN = 3.3V
1
0.8
0.6
0.4
0.2
0
0
25
50
75
100
125
TJ (°C)
Sense Pin Current vs.
Junction Temperature
125
VIN = 12V
120 VEN = 3.3V
115 VSNS = VO(NOM)
110
105
100
95
90
85
80
75
0
25
50
75
100
125
TJ (°C)
Output Voltage (SC1548CSK-1.8)
vs. Junction Temperature
1.845
1.840
1.835
1.830
VIN = 12V
VEN = 3.3V
3.0V ≤ VPWR ≤ 3.6V
1mA ≤ IO ≤ 1A
1.825
1.820
1.815
1.810
1.805
1.800
1.795
1.790
0
25
50
75
TJ (°C)
100
125
Power-Up Output Short Circuit Immunity
vs. Junction Temperature
10
9
VIN = 12V
VEN switched from 0V to 3.3V
8
ROUT = 0Ω
7
Two representative parts
shown
6
5
4
3
2
1
0
0
25
50
75
100
125
TJ (°C)
2004 Semtech Corp.
7
www.semtech.com
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