Current Protection | TPS2399

Hot Swap Controller with Enable, -48 V

Obsolete

Datasheet

Products

Overview

The TPS2398 and TPS2399 integrated circuits are hot swap power managers optimized for use in nominal −48 V systems. They incorporate an improved circuit breaker response that provides rapid protection from short circuits, while still enabling plug−ins to tolerate large transients that can be generated by the sudden switchover to a higher voltage supply. They are designed for supply voltage ranges up to −80 V, and are rated to withstand spikes to −100 V. In conjunction with an external N−channel FET and sense resistor, they can be used to enable live insertion of plug−in cards and modules in powered systems. Both devices provide load current slew rate and peak magnitude limiting, easily programmed by sense resistor value and a single external capacitor.They also provide single-line fault reporting, electrical isolation of faulty cards, and protection against nuisance overcurrent trips. The TPS2398 latches off in response to current faults, while the TPS2399 periodically retries the load in the event of a fault.

  • −48 V Distributed Power Systems
  • Redundant Negative Voltage Supplies
  • Central Office Switching Systems

  • Power source for telecom / computing (rack) systems

  • Wide Input Supply: −36 V to −80 V
  • Transient Rating to −100 V
  • Improved Transient Response
  • Εnable Input (EN)
  • Programmable Current Limit
  • Programmable Current Slew Rate
  • Fault Timer to Eliminate Nuisance Trips
  • Open−Drain Power Good Output (/PG)

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TPS2398DMT7G

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Obsolete

CAD Model

Pb

A

H

P

MSOP-8

846AD

1

260

REEL

3000

N

Latch

-100

NA

NA

NA

Price N/A

More Details

TPS2399DMT7G

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Obsolete

CAD Model

Pb

A

H

P

MSOP-8

846AD

1

260

REEL

3000

N

Auto-Retry

-100

NA

NA

NA

Price N/A

More Details

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Reliability Data

Die Related Summary Data

Device: TPS2398DMT7G

Equivalent to wafer fab process: ONC25

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC25

1

2712519294

More Details

Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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