LT1640AL LINER [Linear Technology], LT1640AL Datasheet - Page 27

• Manufacturer Part Number: LT1640AL
• Description: Negative Voltage Hot Swap Controllers
• Manufacturer: LINER [Linear Technology]

APPLICATIONS INFORMATION
Figure 16. Shutdown Cooling Timing Behavior of LTC4252-2 (All Waveforms Are Referenced to V
PWRGD
SENSE
TIMER
DRAIN
GATE
V
OUT
SS
DRN
CB FAULT
1
CIRCUIT BREAKER TIMES OUT
5.8μA
2
V
TMRL
PWRGD
Figure 15. Pushbutton Reset of LTC4252-1’s Latched Fault
(All Waveforms Are Referenced to V
5.8μA
SENSE
TIMER
DRAIN
GATE
SS
5.8μA
MOMENTARY DPST SWITCH RESET
5.8μA
SWITCH RESETS LATCHED TIMER
1
SHUTDOWN COOLING
V
ACL
CB
GATEL
V
V
TMRH
TMRL
5.8μA
+ V
+ V
OS
GATE START-UP
OS
OS
58μA
)
)
SWITCH RELEASES SS
2 34
5.8μA
5
DRN
58μA
5.8μA
67 8 9
EE
5.8μA
ACL
V
V
V
V
V
CB
IN
ACL
CB
DRNCL
DRNL
)
V
LTC4252A-1/LTC4252A-2
OS
GATEL
+ V
+ V
– V
V
TMRH
OS
OS
5.8μA
GATEH
58μA
)
)
RETRY
3 4 5
LTC4252-1/LTC4252-2
START-UP
GATE
6
DRN
58μA
78 9 10
425212 F15
5.8μA
V
V
V
V
V
IN
ACL
CB
DRNCL
DRNL
– V
GATEH
5.8μA
EE
)
425212 F16
5.8μA
27
425212fd