See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DBT | 44

Temp:

I (-40 to 85)

ECO Plan:

Green (RoHS & no Sb/Br)

BQ34Z651DBT


SBS 1.1 Compliant Gas Gauge with Impedance Track Technology design for low temperature environment

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Texas Instruments BQ34Z651DBT

The bq34z651 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is a single IC solution designed for battery-pack or in-system installation. The bq34z651 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals. The bq34z651 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, which reports the information to the system host controller over a serial-communication bus. Together with the integrated analog front-end (AFE) short-circuit and overload protection, the bq34z651 maximizes functionality and safety while minimizing external component count, cost, and size in smart battery circuits.

The implemented Impedance Track gas gauging technology continuously analyzes the battery impedance, resulting in superior gas-gauging accuracy. This enables remaining capacity to be calculated with discharge rate, temperature, and cell aging—all accounted for during each stage of every cycle with high accuracy.

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