LT4250 LINER [Linear Technology], LT4250 Datasheet - Page 17

• Manufacturer Part Number: LT4250
• Description: Negative Voltage Hot Swap Controllers in SOT-23
• Manufacturer: LINER [Linear Technology]

applicaTions inForMaTion
GND-V
SENSE
TIMER
UV/0V
GATE
V
OUT
V
EE
GND-V
IN
SENSE
TIMER
UV/0V
V
GATE
V
LKO
OUT
V
EE
IN
1
Figure 8. Power-Up Timing with a Short-Pin (All Waveforms are Referenced to V
1
Figure 7. System Power-Up Timing (All Waveforms are Referenced to V
2
2
UV/0V CLEARS V
V
UVHI
V
V
IN
LKO
CLEARS V
INITIAL TIMING CYCLE
LKO
UVHI
INITIAL TIMING CYCLE
, CHECK V
5.8µA
, CHECK V
5.8µA
UVHI
IN
< V
<UV/0V < V
LKO
V
– V
TMRH
V
LKH
V
TMRL
OVLO
TMRH
, TIMER < V
V
, TIMER< V
TMRL
3
58µA
4
3
START-UP CYCLE
TIMER CLEARS V
TMRL
58µA
5 6
230µA
4
TMRL
START-UP CYCLE
, GATE < V
TIMER CLEARS V
5 6
230µA
, GATE < V
7 8 9
58µA
7 8 9
GATEL
TMRL
GATEL
V
V
ACL
CB
58µA
LTC4251/LTC4251-1/
AND SENSE < V
, CHECK GATE < V
TMRL
V
V
AND SENSE < V
ACL
CB
, CHECK GATE < V
5.8µA
CB
5.8µA
CB
.
GATEL
.
EE
GATEL
AND SENSE < V
)
EE
AND SENSE < V
)
5.8µA
425112 F07
LTC4251-2
5.8µA
CB
425112 F08
.
CB
.
17
425112fc