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MAX1667 - Chemistry-Independent / Level 2 Smart Battery Charger

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.

Key Features

  • o Charges Any Battery Chemistry: Li+, NiCd, NiMH, Lead Acid, etc. o SMBus 2-Wire Serial Interface o Compliant with Duracell/Intel Smart Battery Charger Specification Rev. 1.0 o 4A, 3A, or 1A (max) Battery Charge Current o 5-Bit Control of Charge Current o Up to 18.4V Battery Voltage o 11-Bit Control of Voltage o ±1% Voltage Accuracy o Up to +28V Input Voltage o Battery Thermistor Fail-Safe Protection o Greater than 95% Efficiency o Synchronous Rectifier MAX1667 ________________________Applicat.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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19-1488; Rev 0; 7/99 Chemistry-Independent, Level 2 Smart Battery Charger 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. In addition to the feature set required for a Level 2 charger, the MAX1667 generates interrupts to signal the host when power is applied to the charger or when a battery is installed or removed.