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LTC4228IGN-1#PBF - 

Hot Swap Controller, 3V to 18V supply, SSOP-28

LTC4228IGN-1#PBF - Hot Swap Controller, 3V to 18V supply, SSOP-28

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
LTC4228IGN-1#PBF
Order Code:
2215138
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The LTC4228IGN-1#PBF is a Hot Swap Controller offers ideal diode and Hot Swap functions for two power rails by controlling two external N-channel MOSFETs in each rail. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. Hot Swap control MOSFETs allow boards to be safely inserted and removed from a live backplane by limiting inrush current. The supply output is also protected against short-circuit faults with a fast acting current limit and internal timed circuit breaker. The LTC4228 regulates the forward voltage drop across the external MOSFETs and sense resistor to ensure smooth current transfer from one supply to the other without oscillation. The ideal diodes turn on quickly to reduce the load voltage droop during supply switch-over. If the input supply fails or is shorted, a fast turn-off minimizes reverse-current transients.
  • Power path and inrush current control for redundant supplies
  • Low loss replacement for power schottky diodes
  • Protects output voltage from input brownouts
  • Allows safe hot swapping from a live backplane
  • Controls N-channel MOSFETs
  • Adjustable current limit with circuit breaker
  • Adjustable current limit fault delay
  • Smooth switchover without oscillation
  • 0.5µs Ideal diode turn-on and turn-off time
  • Latch off after fault

Applications

Communications & Networking, Power Management

Product Information

:
Mezzanine Card, MicroTCA Systems, Telecom Network
:
12V
:
3V
:
18V
:
SSOP
:
28Pins
:
-40°C
:
85°C
:
-
:
Yes
:
MSL 1 - Unlimited
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