BQ2010 - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

BQ2010
Manufacturer

TI
ChipWorker Part#

CW355898492
RoHS

Lead free / RoHS Compliant
Description

NiCd/NiMH Gas Gauge With 1-Wire (DQ) Interface And 5 LED Drivers
Documentation

Datasheet

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BQ2010 Specifications

Attribute	Attribute Value

Part Number	BQ2010
Manufacturer	TI
ChipWorker Part#	CW355898492
Documentation	Datasheet
Mounting Style	Surface Mount
Case/Package	SOIC-16
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RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

The bq2010 Gas Gauge IC is intended for battery-pack or in-system installation to maintain an accurate record of a batterys available charge. The IC monitors a voltage drop across a sense resistor connected in series between the negative battery terminal and ground to determine charge and discharge activity of the battery.
NiMH and NiCd battery self-discharge is estimated based on an internal timer and temperature sensor. Compensations for battery temperature and rate of charge or discharge are applied to the charge, discharge, and self-discharge calculations to provide available charge information across a wide range of operating conditions. Battery capacity is automatically recalibrated, or "learned," in the course of a discharge cycle from full to empty.
Nominal available charge may be directly indicated using a five- or six-segment LED display. These segments are used to indicate graphically the nominal available charge.
The bq2010 supports a simple single-line bidirectional serial link to an external processor (common ground). The bq2010 outputs battery information in response to external commands over the serial link.
The bq2010 may operate directly from 3 or 4 cells. With the REF output and an external transistor, a simple, inexpensive regulator can be built to provide VCC across a greater number of cells.
Internal registers include available charge, temperature, capacity, battery ID, battery status, and programming pin settings. To support subassembly testing, the outputs may also be controlled. The external processor may also overwrite some of the bq2010 gas gauge data registers.
Conservative and repeatable measurement of available charge in rechargeable batteries
Designed for battery pack integration
120µA typical standby current
Small size enables implementations in as little as ½ square inch of PCB
Integrate within a system or as a stand-alone device
Display capacity via single-wire serial communication port or direct drive of LEDs
Measurements compensated for current and temperature
Self-discharge compensation using internal temperature sensor
Accurate measurements across a wide range of current (> 500:1)
16-pin narrow SOIC

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- Anti-vibration foam
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- Electrical testing
- Surface testing

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