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BQ27426YZFR The Texas Instruments BQ27426YZFR is a single-cell Li-ion battery fuel gauge IC. It features an I2C interface and operates within a temperature range of -40°C to 85°C.
Mfr Part #:

BQ27426YZFR

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ27426YZFR is a single-cell Li-ion battery fuel gauge IC. It features an I2C interface and operates within a temperature range of -40°C to 85°C.
✓ Total Stock: 9,249 pcs
$ Price Range: $0.69

BQ27426YZFR Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
4,211 pcs
On Request
4211 pcs On Request 1 On Request On Request 17+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
3,595 pcs
On Request
3595 pcs On Request 1 On Request On Request 21+ On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,393 pcs
On Request
1393 pcs On Request 1 On Request On Request On Request On Request On Request
PROSOFT ELECTRONICS ✓
Non-Authorised Inventory information
50 pcs
On Request
50 pcs On Request 1 On Request On Request 22+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ27426YZFR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supplier Package
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BQ27426YZFR Description

Short technical summary and product information.

The Texas Instruments BQ27426YZFR is a system-side, single-cell Li-ion battery fuel gauge designed for minimal configuration and quick system bring-up. It utilizes patented Impedance Track technology for accurate state-of-charge (SOC) reporting, adjusting for battery aging, self-discharge, temperature, and rate changes.

 

Key electrical specifications include an I2C interface operating at 400 kHz and support for a low-value external sense resistor of 10 mΩ. It offers ultra-low operating current of 9 µA when the load is below 10 mA. The device supports three selectable preprogrammed profiles for 4.2-V, 4.35-V, and 4.4-V cells, and includes an internal temperature sensor.

 

Packaged in a 9-DSBGA (YZF) format, the BQ27426YZFR is designed for surface mounting. It operates across a wide temperature range of -40°C to 85°C. This fuel gauge is suitable for embedded or removable battery applications, powering directly from the battery with an integrated LDO.

BQ27426YZFR Quick Information

Product Type: Battery Fuel Gauge IC
Canonical Name: BQ27426 System-Side Impedance Track Fuel Gauge
Subcategory: System-Side Fuel Gauge

BQ27426YZFR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ27426YZFR Estimated Pricing

Qty Low High
1+ $0.69 $0.69

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

BQ27426YZFR Features

  • Single-cell Li-ion battery fuel gauge.
  • Accurate fuel gauging via Impedance Track technology.
  • Low 9 µA operating current in sleep mode.
  • Supports 10 mΩ external sense resistor.
  • Operates from -40°C to 85°C.

BQ27426YZFR Applications

  • Ideal for portable electronic devices.
  • Suitable for embedded battery systems.
  • Used in devices with removable batteries.
  • Enables accurate battery monitoring.

BQ27426YZFR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ27426YZFR?

The operating temperature range is -40°C to 85°C.

What interface does the BQ27426YZFR use?

The BQ27426YZFR uses an I2C interface.

How many battery cells does the BQ27426YZFR support?

It supports a single cell.

What battery chemistry is supported by the BQ27426YZFR?

It supports Lithium Ion battery chemistry.

What is the typical operating current of the BQ27426YZFR?

The typical operating current is 9 µA when the load is below 10 mA.

What is the value of the external sense resistor supported by the BQ27426YZFR?

It supports a low-value external sense resistor of 10 mΩ.

What cell voltages does the BQ27426YZFR support?

It supports three selectable preprogrammed profiles for 4.2-V, 4.35-V, and 4.4-V cells.

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