Hot Swap Smart Fuse, 18 V, 0.65 mΩ, 50 A, LQFN32

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Overview

The NCP81428 is a PMBus® enabled, 12 V, 50 A resettable in-line fuse designed for comprehensive protection against over current events, over voltage events, short circuit events, and excessive inrush current. The NCP81428 consists of a 0.65 mΩ NMOS FET, a high performance Hot-Swap Controller, and a Non-Volatile Memory (NVM) all co-packaged into a LQFN32 package. The NCP81428 can be configured as a single-phase solution, or in multi-phase as a Master or a Slave to support higher current applications.

  • Server and High-performance computing
  • Data Storage
  • Base Station
  • Industrial Applications
  • Server, Storage
  • Graphics and Accelerator cards
  • Base Station
  • Power - 5V to 18V oeprating range
  • Power - Low 0.65mΩ Internal MOSFET
  • Power - ±2% IMON Accuracy at 30 A and Higher
  • Power - UP to 80A Peak Output Current with Programmable OCP Levels and Timers
  • Power - Parallel Operation for High Current Applications as master and slave device
  • Power - 150A Short Circuit Protection
  • PMBus 1.4 Compliant
  • PMBus - Programmable OCP levels up to 80A and timers up to 50msec
  • PMBus - Enable by Pin Assertion and/or through PMBus
  • PMBus - Programmable VIN Under Voltage Warning and Overvoltage Fault
  • PMBus - Output Pulldown Selection
  • PMBus - Programmable Auto Retry/Latch off Options
  • PMBus - Power cycle feature with 10second timer
  • Others - Co-packaged Power Switch, Hotswap Controller and NVM
  • Others - 10−bit ADC for IOUT, VIN, IOUT_pk, VOUT, VTEMP
  • Others - 5 mm x 5 mm LQFN32 Package ; Layout compatible with non-PMBus Smart Fuse solution, NCP81295
  • Others - (TWI) Two Wire Interface between Master and Slave(s)
  • Others - External Soft-Start Programming
  • Others - Operating Temperature: −40°C to +125°C
  • Others - Soft-Start Current Balancing between Parallel Units
  • Others - Excessive Soft−start Duration Protection
  • Others - Fault Event and Peak Current Recording
  • Others - Overcurrent Protection, Short-circuit Protection and Over−temperature Shutdown
  • Others - Internal FET Health Diagnostics

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Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Over Current - Shutdown (Y/N)

Over Current - Current Source (Y/N)

Current Limit (FIXED/ADJ/NO)

Over Voltage Protection (Y/N)

Reverse Current Blocking (Y/N)

FAULT Signal (Y/N)

PGOOD (Y/N)

UVLO (Y/N)

Rds(on) Typ (mΩ)

Max Current (A)

Output Discharge (Y/N)

IMON Output (Y/N)

Adjustable Slew Rate (Y/N)

Vin Min (V)

Vin Max (V)

Iq (µA)

eFuse / Hot Plug (Y/N)

Input / Output

Product Family

Reference Price

NCP81428MNTXG

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Active, New

CAD Model

Pb

A

H

P

LQFN-32

3

260

REEL

2500

F

Y

N

ADJ

Y

N

Y

Y

Y

0.65

50

Y

Y

Y

5

18

9500

Y

1/1

Smart Fuse

$3.9999

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