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BQ2040

The Texas Instruments BQ2040 is a gas gauge IC designed for battery pack integration. It provides accurate charge measurement for NiCd, NiMH, and Li-Ion batteries.

✓ Total Stock: 239 pcs

$ Price Range: $0.75

BQ2040 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
PROSOFT ELECTRONICS ✓ Non-Authorised Inventory information	239 pcs On Request	239 pcs	On Request	1	On Request	On Request	06+	On Request	On Request

BQ2040 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Number of Pins	16
Operating Temperature	0°C to 70°C
Voltage	3.0 V to 6.5 V

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BQ2040 Description

Short technical summary and product information.

The Texas Instruments BQ2040 is a gas gauge IC with an SMBus interface, intended for battery-pack or in-system installation to maintain an accurate record of available battery charge. It directly supports capacity monitoring for NiCd, NiMH, and Li-Ion battery chemistries.

Key features include support for the SBS v1.0 data set and a two-wire interface. The BQ2040 monitors the charge FET in Li-Ion pack protection circuits and can drive a four-segment LED display for remaining capacity indication. It operates from a 3.0V to 6.5V supply voltage and has an operating temperature range of 0°C to 70°C.

Designed for battery pack integration, the BQ2040 offers low operating current and a complete circuit that can fit on less than 3/4 square inch of PCB space. It supports SBS charge control commands for NiCd, NiMH, and Li-Ion batteries. Battery state-of-charge, remaining capacity, and remaining time are available over the serial link.

This IC is available in a 16-pin narrow SOIC package. It supports battery capacities ranging from a minimum of 800 mAh to a maximum of 10000 mAh and can manage 2-4 series cells.

BQ2040 Quick Information

Product Type: Gas Gauge IC

Canonical Name: BQ2040 Gas Gauge IC With SMBus Interface

Subcategory: Battery Management

BQ2040 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BQ2040 Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ2040 Features

Accurate charge measurement for NiCd, NiMH, Li-Ion
Supports SBS v1.0 data set and two-wire interface
Monitors charge FET in Li-Ion protection circuits
Drives a four-segment LED display for capacity
Low operating current for battery pack integration

BQ2040 Applications

Battery pack charge monitoring
In-system battery management
Portable electronic devices
Smart battery systems

BQ2040 FAQs

6 frequently asked questions generated from this part’s specifications.

What battery chemistries does the BQ2040 support?

The BQ2040 directly supports capacity monitoring for NiCd, NiMH, and Li-Ion battery chemistries.

What is the operating voltage range for the BQ2040?

The BQ2040 operates from a supply voltage of 3.0 V to 6.5 V.

What is the operating temperature range for the BQ2040?

The BQ2040 has an operating temperature range of 0°C to 70°C.

What communication interface does the BQ2040 use?

The BQ2040 uses the System Management Bus v1.0 (SMBus) protocol and supports the Smart Battery Data (SBData) commands.

What is the package type for the BQ2040?

The BQ2040 is available in a 16-pin narrow SOIC package.

What is the minimum and maximum supported battery capacity?

The BQ2040 supports a minimum battery capacity of 800 mAh and a maximum of 10000 mAh.