Specification	BQ27426YZFR

Battery Chemistry	Lithium Ion
Function	Battery Monitor
Interface	I2C
Mounting Type	Surface Mount
Number of Cells	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	DSBGA, 9-UFBGA
Supplier Device Package	9-DSBGA

BQ27426 Series

Single cell System-side battery fuel (gas) gauge w/Pre-programmed chemistry Profile

Part	Function	Supplied Contents	Utilized IC / Part	Type	Number of Cells	Interface	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Supplier Device Package	Mounting Type	Battery Chemistry
Texas Instruments BQ27426EVM-738	Fuel Gauge	Board(s)	BQ27426	Power Management
Texas Instruments BQ27426YZFR	Battery Monitor				1	I2C	85 °C	-40 °C	9-UFBGA DSBGA	9-DSBGA	Surface Mount	Lithium Ion

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.88
		10	$ 1.86
		25	$ 1.60
		100	$ 1.30
		250	$ 1.16
		500	$ 1.07
		1000	$ 0.99
	Digi-Reel®	1	$ 2.88
		10	$ 1.86
		25	$ 1.60
		100	$ 1.30
		250	$ 1.16
		500	$ 1.07
		1000	$ 0.99
	Tape & Reel (TR)	3000	$ 0.77
		6000	$ 0.73
		9000	$ 0.71
Texas Instruments	LARGE T&R	1	$ 1.23
		100	$ 1.02
		250	$ 0.73
		1000	$ 0.55

Description

General part information

BQ27426 Series

The Texas Instruments BQ27426 battery fuel gauge is a single-cell gauge that requires minimal user-configuration and system microcontroller firmware development, leading to quick system bring-up.

Three chemistry profiles are preprogrammed to enable minimum user-configuration, and to help manage customer inventory across projects with different battery chemistries. The BQ27426 battery fuel gauge has very low sleep power consumption leading to longer battery run time. Configurable interrupts help save system power and free up the host from continuous polling. Accurate temperature sensing is supported via an external thermistor.

The BQ27426 battery fuel gauge uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).