LTC1422: Hot Swap Controller Data Sheet8/27/2007197K
Features and Benefits
- Allows Safe Board Insertion and Removal from a Live Backplane
- System Reset Output with Programmable Delay
- Programmable Electronic Circuit Breaker
- User-Programmable Supply Voltage Power-Up Rate
- High Side Driver for an External N-Channel FET
- Controls Supply Voltages from 2.7V to 12V
- Undervoltage Lockout
- Soft Reset Input
- Glitch Filter on RESET
The LTC1422 is an 8-pin Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped up at a programmable rate. A high side switch driver controls the N-channel gate for supply voltages ranging from 2.7V to 12V.
A programmable electronic circuit breaker protects against shorts. The RESET output can be used to generate a system reset when the supply voltage falls below a programmable voltage. The ON pin can be used to cycle the board power or to generate a soft reset.
The LTC1422 is available in 8-pin PDIP and SO packages.
- Hot Board Insertion
- Electronic Circuit Breaker
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
DC1357A: Demo Board for the LTC1422 Hot Swap Controller
Documentation & Resources
R319 Reliability Data3/22/201820 K
DC1357A - Demo Manual10/22/2009417K
DN272 - Multiple Power Supplies Track During Power Up5/19/201493K
DN319 - Low Voltage Hot Swap Controller Ignores Backplane Noise and Surges4/4/201481K
DN197 - Power Solutions for the Device Bay4/4/201475K
Hot Swap Controllers7/13/2017778 K
Ramp Three Supplies with a Supply Monitor and Hot Swap Controller5/1/2001 LT Journal
LTC1422 Companion Parts
Recommended Related Parts
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
|Part Number||Material Declaration||Reliability Data||Pin/Package Drawing||CAD Symbols, Footprints & 3D Models|
|LTC1422CN8#PBF||Material Declaration||Reliability Data||8-Lead PDIP (Narrow 0.3 Inch)|
|LTC1422CS8#PBF||Material Declaration||Reliability Data||8-Lead SOIC (Narrow 0.15 Inch)|
|LTC1422CS8#TRPBF||Material Declaration||Reliability Data||8-Lead SOIC (Narrow 0.15 Inch)|
|LTC1422IN8#PBF||Material Declaration||Reliability Data||8-Lead PDIP (Narrow 0.3 Inch)|
|LTC1422IS8#PBF||Material Declaration||Reliability Data||8-Lead SOIC (Narrow 0.15 Inch)|
|LTC1422IS8#TRPBF||Material Declaration||Reliability Data||8-Lead SOIC (Narrow 0.15 Inch)|
|Wafer Fabrication Data||R319 Reliability Data|
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