Status
Active: Data sheet on request only
Description
The MAX1789/MAX17892 smart battery-pack controllers integrate a user-programmable microcontroller core, a coulomb-counting fuel gauge, a multichannel data-acquisition unit, and a system management bus (SMBus™) v1.1-compliant master/slave SMBus interface. The 8-bit, RISC microcontroller core has an integrated 8kB of user-programmable flash and a 12kB program ROM library, which provides battery-pack designers with complete flexibility in developing fuel gauging and control algorithms. The MAX1789/MAX17892 are equipped with in-system debug (ISD) capability for efficient development and debugging.
The MAX1789/MAX17892 include a 12-bit data-acquisition unit to measure individual cell voltages, thermistors, current, and pack voltage. Internally adjustable overcurrent thresholds and delay timers provide a flexible solution.
The integrating fuel-gauge module provides a typical input offset of less than 1µV and gain accuracy of better than 1% with no trimming required during pack manufacture. The MAX1789/MAX17892 have a wide +4V to +25V operating voltage range. The MAX1789/MAX17892 are available in a lead-free, 28-pin TSSOP package. The MAX1789/MAX17892 evaluation kit is available to assist with development.
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Data Sheet
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