BQ25121YFPT The Texas Instruments BQ25121YFPT is a highly integrated battery charge management solution designed for wearables and IoT devices. It offers a 300mA charge current and an I2C interface for control.
Mfr Part #:

BQ25121YFPT

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ25121YFPT is a highly integrated battery charge management solution designed for wearables and IoT devices. It offers a 300mA charge current and an I2C interface for control.
✓ Total Stock: 12,823 pcs
$ Price Range: $2.98

BQ25121YFPT Available from 1 distributor

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BQ25121YFPT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Battery Pack Voltage
Charge Current
Current
Fault Protection
Interface
Mounting Type
Number of Cells
Operating Temperature
Programmable Features
SVHC Present
Supplier Device Package
Supplier Package
Voltage

BQ25121YFPT Description

Short technical summary and product information.

The BQ25121YFPT from Texas Instruments is a highly integrated battery charge management solution suitable for wearables and IoT applications. This IC supports Li-Ion/Li-Polymer batteries and features a maximum charge current of 300mA.

 

Key electrical specifications include an input voltage range of 3.4V to 5.5V, with an absolute maximum input voltage of 20V. The battery charge voltage is configurable from 3.6V to 4.65V. Control is managed via an I2C interface, and it offers programmable features for current and fault protection, including over voltage.

 

The device operates within a temperature range of -40°C to 85°C. It is supplied in a 25-DSBGA package and uses a surface mount configuration. The typical quiescent current (Iq) with the buck converter enabled is 700nA, and it supports a configurable termination current down to 500µA. Power Path Management enables a ship mode quiescent current of less than 50nA for extended shelf life.

BQ25121YFPT Quick Information

Product Type: Battery Charger IC
Canonical Name: BQ25121YFPT Battery Charger IC
Subcategory: Power Management

BQ25121YFPT Compliance

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

BQ25121YFPT Estimated Pricing

Qty Low High
1+ $2.98 $2.98

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

BQ25121YFPT Features

  • Highly integrated battery charge management solution.
  • Supports 1-cell Li-Ion/Li-Polymer batteries.
  • 300mA maximum charge current for fast charging.
  • I2C interface for control and configuration.
  • Low quiescent current for extended battery life.

BQ25121YFPT Applications

  • Ideal for wearable devices.
  • Suitable for IoT applications.
  • Enables efficient battery charging.
  • Compact solution for space-constrained designs.

BQ25121YFPT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum charge current for the BQ25121YFPT?

The BQ25121YFPT has a maximum charge current of 300mA.

What is the input voltage range for the BQ25121YFPT?

The input voltage range for the BQ25121YFPT is from 3.4V to 5.5V.

What type of battery chemistry does the BQ25121YFPT support?

The BQ25121YFPT supports Li-Ion/Li-Polymer battery chemistry.

What is the operating temperature range of the BQ25121YFPT?

The operating temperature range for the BQ25121YFPT is -40°C to 85°C.

What interface is used to control the BQ25121YFPT?

The BQ25121YFPT uses an I2C interface for control.

What is the typical quiescent current (Iq) of the BQ25121YFPT with the buck converter enabled?

The typical quiescent current (Iq) with the buck converter enabled is 700nA.

What is the configurable termination current for the BQ25121YFPT?

The BQ25121YFPT supports a configurable termination current down to 500µA.

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