BQ29312APW

Battery Type : Li-Ion, Li-Poly
Maximum Operating Temperature : + 85 C
Minimum Operating Temperature : - 40 C
Operating Supply Voltage : 4.5 V to 25 V
Packaging : Tube
Output Voltage : 25 V
Output Current : 0.2 mA
Package / Case : TSSOP-24


Features:

•2-,3-,or4-Cell Series Protection Control
•Can Directly Interface With the bq2084 Gas Gauges
•Provides Individual Cell Voltages and Battery Voltage to Battery Management Host
•Integrated Cell Balancing Drive
•I²C  Compatible User Interface Allows Access to Battery Information
•Programmable Threshold and Delay for Overload and Short Circuit During Charge and Discharge
•System Alert Interrupt Output
•Host Control Can Initiate Sleep Power Mode
•Integrated 3.3-V, 25-mA LDO
•Supply Voltage Range From 4.5 V to 25 V
•Low Supply Current of 60-A Typical
•bq29312A is 100% specification compatible with the bq29312

Application

· Notebook PCs
· Medical and Test Equipment
· Portable Instrumentation

Specifications

 

			bq29312A
VCC	Supply voltage range	PACK, BAT	0.3 V to 34 V
VI	Input voltage range	VC1, VC2, VC3, VC4	0.3 V to 34 V
		SR1, SR2	1.0 V to 1.0 V
		VC5	1.0 V to 4.0 V
		VC1 to VC2, VC2 to VC3, VC3 to VC4, VC4 toVC5	0.3 to 8.5 V
		WDI, SLEEP, SCLK, SDATA	0.3 to 8.5 V
		ZVCHG	0.3 V to 34 V
VO	Output voltage range	DSG, CHG	0.3 V to BAT
		OD	0.3 V to 34 V
		PMS	0.3 V to PACK0.2 V
		TOUT, SCLK, SDATA, CELL, XALERT	0.3 to 7 V
	Current for cell balancing		10 mA
	Continuous total power dissipation		See Dissipation Rating Table
Tstg	Storage temperature range		65°C to 150°C
	Lead temperature (soldering, 10 s)		300°C

Description

      The bq29312A is a 2-, 3-, or 4-cell lithium-ion  battery pack protection analog front end (AFE) IC that  incorporates a 3.3-V, 25-mA low-dropout regulator (LDO). The bq29312A also integrates an I2C compat-ible interface to extract battery parameters such as  cell voltages and control output status. Other par-ameters such as current protection thresholds and delays can be programmed into the bq29312A to
increase the flexibility of the battery managementsystem .

       The bq29312A provides safety protection for over-charge,overload, short-circuit, overvoltage, and  undervoltage conditions with the battery management host. In overload and short-circuit conditions, the bq29312A turns the FET drive off autonomously dependant on the internal configuration setting.

Parameters:

Technical/Catalog Information	BQ29312APW
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
Battery Type	Li-Ion, Li-Pol
Function	Over/Under Voltage Protection
Package / Case	24-TSSOP
Packaging	Tube
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	4.5 V ~ 25 V
Drawing Number	296; 4040064; PW; 8, 14, 16, 20, 24, 28
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	BQ29312APW BQ29312APW 296 18644 5 ND 296186445ND 296-18644-5