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MAX1508 Datasheet Linear Li+ Battery Charger

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: MAX1508/MAX1508Y/MAX1508Z 19-2890; Rev 2; 8/05 EVAALVUAAILTAIOBNLEKIT Linear Li+ Battery Charger with Integrated Pass FET, Thermal Regulation, and ACOK in 3mm x 3mm TDFN.

General Description

The MAX1508 is an intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery.

The MAX1508 integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also eliminates the reverse-blocking Schottky diode, to create the simplest and smallest charging solution for hand-held equipment.

The MAX1508 functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full-charge indication.

Key Features

  • include the charging status (CHG) of the battery, an active-low control input (EN) for the MAX1508 and MAX1508Z (active-high control input for the MAX1508Y), and an active-low input power-source detection output (ACOK). The MAX1508 accepts a +4.25V to +13V supply, but dis- ables charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX1508 operates over the extended temperature range (-40°C to +85°C) and is available in a compact 8-pin therma.

MAX1508 Distributor