General Description
The MAX1667 provides the power control necessary to charge batteries of any chemistry. All charging functions are controlled through 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 MAX1667 functions as a Level 2 charger, compliant with the Duracell/Intel Smart Battery Charger Specification.

Features
♦ Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc.
♦ SMBus 2-Wire Serial Interface
♦ Compliant with Duracell/Intel Smart Battery Charger Specification Rev. 1.0
♦ 4A, 3A, or 1A (max) Battery Charge Current
♦ 5-Bit Control of Charge Current
♦ Up to 18.4V Battery Voltage
♦ 11-Bit Control of Voltage
♦ ±1% Voltage Accuracy
♦ Up to +28V Input Voltage
♦ Battery Thermistor Fail-Safe Protection
♦ Greater than 95% Efficiency
♦ Synchronous Rectifier

Applications
    Notebook Computers
    Charger Base Stations
    Personal Digital Assistants
    Phones