LT1640LCN8 Linear Technology, LT1640LCN8 Datasheet - Page 6

• Manufacturer Part Number: LT1640LCN8
• Description: IC CONTRLR HOTSWAP NEGVOLT 8-DIP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LT1640LCN8

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: -10 V ~ -80 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT1640L/LT1640H
TIMING DIAGRAMS
6
TEST CIRCUIT
SENSE
GATE
GATE
W U
OV
2V
0V
Figure 4. SENSE to GATE Timing
50mV
Figure 2. OV to GATE Timing
1.223V
1V
t
t
PHLOV
PHLSENSE
1V
W
V
UV
V
5V
+
V
1.203V
OV
5k
R
t
PLHOV
1V
Figure 1. Test Circuit
PWRGD/PWRGD V
OV
UV
V
1640 F04
EE
1640 F02
LT1640L/LT1640H
V
DRAIN
SENSE
GATE
PWRGD
GATE
UV
DD
2V
0V
– V
PWRGD
PWRGD
DRAIN
DRAIN
DRAIN
Figure 5. DRAIN to PWRGD/PWRGD Timing
1.8V
1.8V
= 0V
1640 F01
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
t
1V
PLHUV
1V
1640lhfb
1640 F05
1640 F03