LTC4253AIGN Linear Technology, LTC4253AIGN Datasheet - Page 26

• Manufacturer Part Number: LTC4253AIGN
• Description: MS-Hot Swap/High Voltage, Neg. 48V Hot Swap With 1% UV, Sequencer
• Manufacturer: Linear Technology

Specifications of LTC4253AIGN

• Family Name: LTC4253A
• Package Type: SSOP N
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3.99mm
• Product Height (mm): 1.5mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / Rohs Status: Not Compliant

APPLICATIO S I FOR ATIO
LTC4253/LTC4253A
PWRGD1
26
(12a) Momentary Circuit Breaker Fault
TIMER
SENSE
DRAIN
200µA + 8 • I
GATE
V
OUT
SS
CB FAULT
1
SENSE
TIMER
DRN
GATE
OV
SS
2
V
V
V
TMRH
ACL
CB
OV OVERSHOOTS V
U
1
20 • (V
V
V
20 • (V
GATEL
OVHI
Figure 12. Circuit Breaker Timing Behavior (All Waveforms are Referenced to V
5µA
ACL
U
CB
20 • V
V
V
+ V
+ V
Figure 11. Overvoltage Timing (All Waveforms are Referenced to V
TMRH
OVLO
OS
OS
OS
OVHI
50µA
)
)
200µA + 8 • I
OV DROPS BELOW V
2 34
(V
W
OV
START-UP
FOR THE LTC4253A). GATE AND SS ARE PULLED DOWN, PWRGD SIGNALS AND TIMER ARE UNAFFECTED
GATE
5
DRN
50µA
6 7 8 9
OVLO
U
PWRGD1
(12b) Circuit Breaker Time-Out
(V
V
V
V
SENSE
TIMER
DRAIN
OV
IN
ACL
CB
GATE
V
200µA + 8 • I
OUT
– V
– V
SS
V
OVHST
TMRH
GATEH
5µA
CB TIMES-OUT
1
FOR THE LTC4253A), CHECK GATE < V
DRN
CB FAULT
V
DRNCL
2
V
V
ACL
CB
5µA
4253 F11
GATEL
(12c) Multiple Circuit Breaker Fault
, SENSE < V
EE
PWRGD1
)
SENSE
TIMER
DRAIN
200µA + 8 • I
GATE
V
OUT
SS
EE
V
TMRH
)
CB
AND SS < 20 • V
CB FAULT
1
DRN
2
CB TIMES-OUT
5µA
V
DRNCL
CB FAULT
OS
3
4
425353afc
V
V
ACL
CB
4253 F12