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BQ29312PWR The Texas Instruments BQ29312PWR is a 2- to 4-cell Lithium-Ion battery pack protection analog front end (AFE) IC. It features an I2C compatible interface and operates over a wide temperature range.
Mfr Part #:

BQ29312PWR

Available from 3 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ29312PWR is a 2- to 4-cell Lithium-Ion battery pack protection analog front end (AFE) IC. It features an I2C compatible interface and operates over a wide temperature range.
✓ Total Stock: 11,082 pcs
$ Price Range: $5.06

BQ29312PWR Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
10,716 pcs
On Request
10716 pcs On Request 1 On Request On Request 0514+ On Request On Request
Hybrid Electronics ✓
Non-Authorised Inventory information
365 pcs
On Request
365 pcs On Request 1 On Request On Request 1036 On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
1 pcs
On Request
1 pcs On Request 1 On Request On Request On Request 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.

BQ29312PWR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Lead Spacing
Lead Style
Mounting Type
Number of Cells
Operating Temperature
SVHC Present
Supplier Device Package
Tape & Reel
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BQ29312PWR Description

Short technical summary and product information.

The BQ29312PWR from Texas Instruments is an analog front end (AFE) IC designed for 2-, 3-, or 4-cell lithium-ion or lithium-polymer battery pack protection. It integrates a 3.3-V, 25-mA low-dropout regulator (LDO) and an I2C compatible interface for extracting battery parameters and controlling output status.

 

This IC provides safety protection against overcharge, overload, short-circuit, overvoltage, and undervoltage conditions. It can autonomously turn off the FET drive in overload and short-circuit scenarios based on internal configuration. The I2C interface allows the host to monitor and control the IC's status, enabling features like cell balancing and power mode management.

 

The BQ29312PWR operates from a supply voltage range of 4.5 V to 25 V and has an operating temperature range of -25°C to 85°C. It is housed in a 24-TSSOP package and is suitable for surface mount applications. Typical applications include notebook PCs, medical and test equipment, and portable instrumentation.

 

Key electrical specifications include a low supply current of 60 µA typical. The device supports 2 to 4 series cells and is compatible with Lithium Ion/Polymer battery chemistries. Programmable thresholds and delays for overload and short circuit conditions enhance system flexibility.

BQ29312PWR Quick Information

Product Type: Battery Management IC
Canonical Name: BQ29312PWR Lithium-Ion Battery Protection Analog Front End IC
Subcategory: Battery Protection

BQ29312PWR Compliance

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

BQ29312PWR Estimated Pricing

Qty Low High
1+ $5.06 $5.06

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

BQ29312PWR Features

  • Protects 2, 3, or 4 cell Li-ion batteries.
  • Provides overcharge, overload, and short circuit protection.
  • Features an I2C compatible user interface.
  • Includes an integrated 3.3V, 25mA LDO.
  • Operates from 4.5V to 25V supply.

BQ29312PWR Applications

  • Ideal for notebook PC battery packs.
  • Suitable for medical equipment power.
  • Used in portable instrumentation designs.
  • Enables robust battery management systems.

BQ29312PWR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range for the BQ29312PWR?

The operating temperature range for the BQ29312PWR is -25°C to 85°C.

What package type is the BQ29312PWR available in?

The BQ29312PWR is available in a 24-TSSOP package.

What is the supply voltage range for the BQ29312PWR?

The BQ29312PWR operates from a supply voltage range of 4.5 V to 25 V.

How many cells can the BQ29312PWR protect?

The BQ29312PWR can protect 2 to 4 series cells.

What battery chemistry is supported by the BQ29312PWR?

The BQ29312PWR supports Lithium Ion/Polymer battery chemistries.

What interface does the BQ29312PWR use?

The BQ29312PWR uses an I²C interface.

What types of fault protection does the BQ29312PWR offer?

The BQ29312PWR offers protection against Over Current, Over/Under Voltage, and Short Circuit conditions.

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