General Description

The MAX1647/MAX1648 provide the power control necessary to charge batteries of any chemistry. In the MAX1647, all charging functions are controlled via the Intel System Management Bus (SMBus?) interface. The SMBus 2-wire serial interface sets the charge voltage and current, and provides thermal status information. The MAX1647 functions as a level 2 charger, compliant with the Duracell/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins.

特性 Features

? Charges Any Battery Chemistry:

Li-Ion, NiCd, NiMH, Lead Acid, etc.

? Intel SMBus 2-Wire Serial Interface (MAX1647)

? Intel/Duracell Level 2 Smart Battery Compliant (MAX1647)

? 4A, 2A, or 1A Maximum Battery-Charge Current

? 11-Bit Control of Charge Current

? Up to 18V Battery Voltage

? 10-Bit Control of Voltage

? ±0.75 Voltage Accuracy with External ±0.1 Reference

? Up to 28V Input Voltage

? Battery Thermistor Fail-Safe Protection

Applications

Notebook Computers

Personal Digital Assistants

Charger Base Stations

Phones