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bq2016

Texas Instruments
Part Number bq2016
Manufacturer Texas Instruments
Description GAS GAUGE
Published May 15, 2022
Detailed Description bq2016 GAS GAUGE IC FOR HIGH DISCHARGE RATES SLUS475A – JANUARY 2001 – REVISED NOVEMBER 2002 D Provides Accurate Measur...
Datasheet PDF File bq2016 PDF File

bq2016
bq2016

Overview
bq2016 GAS GAUGE IC FOR HIGH DISCHARGE RATES SLUS475A – JANUARY 2001 – REVISED NOVEMBER 2002 D Provides Accurate Measurement of Available Capacity in Nicd or NiMH Batteries D Measures a Wide Dynamic-Current Range D Requires ≤ 1 Square Inch of PCB Space for Easy Pack Integration D Measures Charge Flow Using a Low-Offset V-to-F Converter D Automatically Compensates Measurements for Rate and Temperature D Supports 5 LEDs for Remaining Capacity Indication D Provides a 1-Wire HDQ Communication Interface D Packaging: 28-Pin SSOP TSSOP PACKAGE (TOP VIEW) HDQ 1 NC 2 NC 3 RBI 4 REG 5 NC 6 VCC 7 VSS 8 DISP 9 LED1 10 LED2 11 LED3 12 LED4 13 LED5 14 28 NC 27 NC 26 SB 25 PROG 24 VPFC 23 NC 22 SR1 21 SR2 20 SRC 19 TS 18 THON 17 CVON 16 NC 15 NC description NC — Do not connect The bq2016 gas gauge IC for battery pack or in-system installation maintains an accurate record of available battery capacity.
To integrate charge and discharge activity of the battery, the IC monitors a voltage drop across a sense resistor connected in series with the cells of the battery.
The bq2016 compensates for battery temperature, charge/discharge rate, and battery self-discharge to the charge counter to provide availablecapacity information across a wide range of operating conditions.
The bq2016 works with NiCd or NiMH battery packs that have a capacity of 1 to 4.
5 Ah and that are designed for high discharge rate applications such as power tools.
The VPFC input sets the initial full charge reference of the battery pack.
The bq2016 learns the true discharge capacity of the battery pack and automatically updates the full-charge reference during the course of a discharge cycle from full to empty.
The remaining capacity is reported as the ratio between the actual discharge capacity and the full-charge capacity.
The bq2016 communicates available capacity using 5 LEDs or the 1-wire communications port.
The 1-wire serial communication port (5Kb/s) allows an external processor to read and write the ...


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