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LT1640ALCS8 Datasheet(PDF) 6 Page - Linear Technology

Part # LT1640ALCS8
Description  Negative Voltage Hot Swap Controller
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1640ALCS8 Datasheet(HTML) 6 Page - Linear Technology

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LT1640AL/LT1640AH
PWRGD/PWRGD VDD
V +
5V
OV
VDRAIN
48V
R
5k
DRAIN
LT1640AL/LT1640AH
UV
GATE
VEE
SENSE
VSENSE
1640A F01
VUV
VOV
+
–
Figure 1. Test Circuit
2V
1V
1640A F02
tPHLOV
1.223V
0V
OV
GATE
1V
1.203V
tPLHOV
TIMING DIAGRAMS
Figure 2. OV to GATE Timing
2V
1V
1640A F03
tPHLUV
1.223V
0V
UV
GATE
1V
1.243V
tPLHUV
Figure 3. UV to GATE Timing
Figure 4. SENSE to GATE Timing
1V
1640A F04
tPHLSENSE
50mV
SENSE
GATE
1.8V
1V
1640A F05
0V
VPWRGD – VDRAIN = 0V
DRAIN
PWRGD
1V
1.4V
1.8V
1V
tPLHPG
VEE
VEE
DRAIN
PWRGD
1V
1.4V
tPHLPG
tPLHPG
tPHLPG
Figure 5. DRAIN to PWRGD/PWRGD Timing
TEST CIRCUIT



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