Key facts
- Brand
- Linear Technology
- Model
- LTC1422
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-06-12
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Linear Technology LTC1422 Hot Swap Controller Datasheet
The LTC1422 is an 8-pin Hot Swap controller designed to allow a board to be safely inserted and removed from a live backplane. It uses an external N-channel pass transistor to ramp the board supply voltage at a programmable rate, controlled by a high-side driver for supply voltages ranging from 2.7V to 12V.
The device includes a programmable electronic circuit breaker to protect against shorts and a system reset output with a programmable delay. It features a user-programmable supply voltage power-up rate, undervoltage lockout, and a soft reset input with a glitch filter. The LTC1422 is available in 8-pin PDIP and SO packages.
Linear Technology LTC1422 specifications
| Supply Voltage Range | 2.7V to 12V |
|---|---|
| Feedback Pin Threshold | 1.232V typical |
| Operating Temperature Range (Industrial) | -40°C to 85°C |
Source: Linear Technology LTC1422 Hot Swap Controller Datasheet
All Linear Technology LTC1422 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the function of the ON pin?
The ON pin is used to cycle board power, generate a soft reset, or reset the electronic circuit breaker.
From: Linear Technology LTC1422 Hot Swap Controller Datasheet
How does the circuit breaker protect the system?
The programmable electronic circuit breaker protects against shorts by tripping when the voltage across the sense resistor exceeds a threshold.
From: Linear Technology LTC1422 Hot Swap Controller Datasheet
How many power supplies can this circuit control simultaneously?
The solution is designed for up to five supplies ramping up at the same time.
From: Linear Technology Corporation Design Note 272 Multiple Power Supplies Track During Power Up
What voltage levels does the LTC1728-1.8 monitor in this design?
The device directly monitors three supply outputs: 5V, 1.8V and 1.5V.
From: Linear Technology Corporation Design Note 272 Multiple Power Supplies Track During Power Up