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MAX4920B Datasheet Battery Power-Up Logic

Manufacturer: Maxim Integrated (now Analog Devices)

Download the MAX4920B datasheet PDF. This datasheet also includes the MAX4919B variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX4919B-MaximIntegrated.pdf) that lists specifications for multiple related part numbers.

General Description

The MAX4919B/MAX4920B/MAX4921B overvoltage protection controllers protect low-voltage systems against high-voltage faults up to +28V.

An internal 1.8A (min) pFET with low RON (100mΩ) switches a battery to the load and also protects the battery against short-circuit faults.

When a short circuit occurs, the current through the internal pFET is limited for a blanking period.

Overview

MAX4919B/MAX4920B/MAX4921B 19-0614; Rev 0; 8/06 Battery Power-Up Logic with Overvoltage and Overcurrent Protection.

Key Features

  • o Input Overvoltage Protection Up to +28V o Preset Overvoltage Protection Trip Level 6.38V (MAX4919B) 5.80V (MAX4920B) 4.65V (MAX4921B) o Adapter/Car-Kit Auto-Selector o Low-Current Undervoltage Lockout Mode o Internal 1.8A (min) Battery Switchover FET o Integrated Low-Battery Detect o Battery Short-Circuit Protection o Low-Cost External nMOS Overvoltage FET o 14-Pin TDFN Package (3mm x 3mm) Pin Configuration TOP VIEW 14 13 12 11 10 9 8 MAX4919B MAX4920B MAX4921B +.
  • EP 1234567 GP1 IN GN1 BT.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX4921B Battery Power-Up Logic
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