LTC4253IGN Linear Technology, LTC4253IGN Datasheet - Page 27

• Manufacturer Part Number: LTC4253IGN
• Description: IC HOT SWAP CONTRLR -48V 16-SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC4253IGN

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 11.2 V ~ 14.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Family Name: LTC4253
• 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: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

applicaTions inForMaTion
PWRGD1
(12a) Momentary Circuit Breaker Fault
SENSE
TIMER
DRAIN
200µA + 8 • I
GATE
V
OUT
SS
CB FAULT
TIMER
SENSE
1
GATE
DRN
OV
SS
2
V
V
V
TMRH
ACL
CB
OV OVERSHOOTS V
1
20 • (V
V
V
20 • (V
OVHI
GATEL
Figure 12. Circuit Breaker Timing Behavior (All Waveforms Are Referenced to V
5µA
ACL
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
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
(V
PWRGD1
(12b) Circuit Breaker Time-Out
V
V
V
OV
SENSE
TIMER
DRAIN
IN
ACL
CB
GATE
V
200µA + 8 • I
– V
– V
OUT
SS
V
OVHST
GATEH
TMRH
5µA
CB TIMES-OUT
FOR THE LTC4253A), CHECK GATE < V
1
CB FAULT
DRN
V
DRNCL
2
V
V
ACL
CB
5µA
LTC4253/LTC4253A
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
OS
CB FAULT
3
27
4
425353afd
V
V
ACL
CB
4253 F12