Specification	BQ2028YZGR

Function	Multi-Function Controller
Interface	HDQ
Mounting Type	Surface Mount
Number of Cells	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	12-UFBGA, DSBGA
Supplier Device Package	12-DSBGA

BQ2028 Series

4Kb EEPROM with single-wire HDQ interface and temperature sensor

Part	Package / Case	Supplier Device Package	Number of Cells	Function	Mounting Type	Interface	Operating Temperature [Max]	Operating Temperature [Min]
Texas Instruments BQ2028YZGT	12-UFBGA DSBGA	12-DSBGA	1	Multi-Function Controller	Surface Mount	HDQ	85 °C	-40 °C
Texas Instruments BQ2028YZGR	12-UFBGA DSBGA	12-DSBGA	1	Multi-Function Controller	Surface Mount	HDQ	85 °C	-40 °C

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	$ 1.03
	Digi-Reel®	1	$ 1.03
	Tape & Reel (TR)	3000	$ 0.76
Texas Instruments	LARGE T&R	1	$ 1.14
		100	$ 0.88
		250	$ 0.65
		1000	$ 0.46

Description

General part information

BQ2028 Series

The Texas Instruments bq2028 serial 4Kb nonvolatile memory (EEPROM) with integrated temperature sensor and LDO linear regulator provides pack-side memory storage and temperature monitoring for a single-cell system-side battery fuel gauge solution such as the bq27505-E1.

The bq2028 communicates with the bq27505-E1 gauge over a single-wire HDQ interface with a minimal overhead protocol yet ensures error free data transfer.

Documents

Technical documentation and resources

4Kb EEPROM with single-wire HDQ interface and temperature sensor datasheet (Rev. B)

Data sheet