The Texas Instruments bq4050 device, incorporating Compensated End-of-Discharge Voltage
(CEDV) technology, is a highly integrated, accurate, 1-series to 4-series cell gas gauge and
protection solution, enabling autonomous charger control and cell balancing.
The bq4050 device provides a fully integrated pack-based solution with a flash
programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for
Li-Ion and Li-Polymer battery packs.
The bq4050 gas gauge communicates via an SMBus-compatible interface and combines an
ultra-low power, high-speed TI bqBMP processor, high-accuracy analog measurement capabilities,
integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a
SHA-1 Authentication transform responder into a complete, high-performance battery management
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