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零件编号
产品描述 (功能)
1640AH 查看數據表(PDF) - Linear Technology
零件编号
产品描述 (功能)
生产厂家
1640AH
Negative Voltage Hot Swap Controller
Linear Technology
1640AH Datasheet PDF : 16 Pages
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LT1640AL/LT1640AH
TEST CIRCUIT
R
V
+
5k
5V
V
OV
PWRGD/PWRGD V
DD
OV
DRAIN
LT1640AL/LT1640AH
UV
GATE
V
UV
V
EE
SENSE
Figure 1. Test Circuit
+–
48V
V
DRAIN
V
SENSE
1640A F01
TIMING DIAGRAMS
2V
OV
0V
GATE
1.223V
1.203V
t
PHLOV
t
PLHOV
1V
Figure 2. OV to GATE Timing
1V
1640A F02
2V
UV
0V
GATE
1.223V
1.243V
t
PHLUV
t
PLHUV
1V
Figure 3. UV to GATE Timing
1V
1640A F03
SENSE
GATE
50mV
t
PHLSENSE
1V
Figure 4. SENSE to GATE Timing
1.8V
DRAIN
V
EE
t
PLHPG
1.4V
t
PHLPG
1640A F04
PWRGD
V
EE
1.8V
DRAIN
0V
1V
t
PLHPG
1V
1.4V
t
PHLPG
PWRGD
1V
V
PWRGD
– V
DRAIN
= 0V
1V
1640A F05
Figure 5. DRAIN to PWRGD/PWRGD Timing
6
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