Protected Power Switches | NCP81418

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

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Overview

The NCP81418 is a slave−only, 50 A, electronically resettable, in−line fuse used in server−based, high current 12 V hot−swap
applications, where NCP81428 serves as the Master. The NCP81418 consists of a very low 0.65 m NMOS FET, a high performance Hot−Swap Controller, all co−packaged into a LQFN32 package. The low RDSon MOSFET ensures minimal conduction losses and the leadframe around the FET efficiently couples heat away.

  • 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, 50A Continuous
  • Power - Parallel Operation for High Current Applications
  • Others - Co-packaged Power Switch, Hotswap Controller
  • Others - Programmable OCP via NCP81428 Master
  • Others - 5 mm x 5 mm LQFN32 Package
  • Others - (TWI) Two Wire Interface between Master and Slave
  • Others - External Soft-Start Programming
  • Others - Operating Temperature: −40°C to +125°C
  • Others - Excessive Soft−start Duration Protection
  • Others - Soft-Start Current Balancing between Parallel Units
  • Others - Over-Temperature Shutdown

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Case Outline

MSL Type

MSL Temp (°C)

Container Type

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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

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NCP81418MNTXG

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Active

CAD Model

Pb

A

H

P

LQFN-32

487AA

3

260

REEL

2500

F

Y

Y

ADJ

Y

N

Y

N

N

0.65

80

N

Y

Y

5

18

9500

Y

1/1

Smart Fuse

$1.8666

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