LT1640AH LINER [Linear Technology], LT1640AH Datasheet - Page 6

• Manufacturer Part Number: LT1640AH
• Description: Negative Voltage Hot Swap Controller
• Manufacturer: LINER [Linear Technology]

LT1640AL/LT1640AH
TIMING DIAGRAMS
TEST CIRCUIT
6
GATE
SENSE
GATE
OV
W U
2V
0V
50mV
Figure 4. SENSE to GATE Timing
1.223V
Figure 2. OV to GATE Timing
1V
t
PHLOV
t
PHLSENSE
1V
W
V
UV
V
5V
+
V
1.203V
OV
5k
R
t
PLHOV
Figure 1. Test Circuit
1V
PWRGD/PWRGD V
OV
UV
V
LT1640AL/LT1640AH
1640A F02
1640A F04
EE
V
GATE
PWRGD
DRAIN
SENSE
UV
GATE
DD
– V
2V
0V
PWRGD
PWRGD
DRAIN
DRAIN
DRAIN
Figure 5. DRAIN to PWRGD/PWRGD Timing
1640A F01
1.8V
1.8V
= 0V
V
V
V
V
0V
DRAIN
SENSE
EE
EE
+
–
1.223V
Figure 3. UV to GATE Timing
48V
1V
t
PHLUV
t
1V
PLHPG
1V
t
PLHPG
1.4V
1.4V
1.243V
t
PHLPG
1V
t
PHLPG
1V
t
PLHUV
1V
1640A F05
1640A F03