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Product details

Parameters

Number of series cells 1 Charge current (Max) (A) 1 Operating Vin (Max) (V) 6.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.2 Battery charge voltage (Max) (V) 4.2 Absolute Vin (safety rating) (Max) ((V)) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Operating Vin (Min) (V) 4.5 Rating Catalog open-in-new Find other Battery charger ICs

Package | Pins | Size

VSON (DRC) 10 9 mm² 3.00 x 3.00 VSON (DRC) 10 9 mm² 3 x 3 open-in-new Find other Battery charger ICs

Features

  • Integrated Power FET and Current Sensor for Up to 1-A Charge Applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • Charge and Power-Good Status Output
  • Automatic Sleep Mode for Low Power Consumption
  • Integrated Charge-Current Monitor
  • Fixed 7-Hour Fast Charge Safety Timer
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-Pol Packs in Space-Limited Portable Applications
  • Small 3.00-mm × 3.00-mm VSON Package

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Description

The bq24080 and bq24081 are highly integrated and flexible Li-Ion linear charge devices targeted at space-limited charger applications. They offer an integrated power FET and current sensor, high-accuracy current and voltage regulation, charge status, and charge termination, in a single monolithic device. An external resistor sets the magnitude of the charge current.

The device charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The device automatically restarts the charge if the battery voltage falls below an internal threshold. The device automatically enters sleep mode when the ac adapter is removed.

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Similar but not functionally equivalent to the compared device:
BQ24040 ACTIVE Standalone 1-cell 1-A linear battery charger with 4.2-V VBAT and Temperature Sensing This product is a 1-A, standalone, single-cell Li-Ion battery charger in a 2x2mm package.

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 6
Type Title Date
* Datasheet BQ24080, BQ24081 1-A, Single-Chip, Li-Ion and Li-Pol Charger IC datasheet (Rev. F) May 08, 2017
Technical articles When to use rechargeable batteries in small battery applications Oct. 01, 2019
Technical articles Should I use a linear charger or a switching charger? Oct. 30, 2015
Technical articles Summertime and the livin' is easy Jun. 20, 2014
More literature Power Bank Charger ICs Feb. 25, 2013
User guide bq24081 EVM 1-A Single-Chip Li-Ion and Li-Pol Charge Mgmt IC Sep. 06, 2006

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
49
Description

The BQ24081EVM Evaluation Module is designed to for engineering evaluation of the bq24081, which is a highly integrated and flexible Li-Ion linear charge device targeted at space-limited charger applications. The bq24081 offers an integrated power FET and current sensor, high-accuracy current and (...)

Design tools & simulation

GERBER FILE Download
SLUC670.ZIP (350 KB)

CAD/CAE symbols

Package Pins Download
VSON (DRC) 10 View options

Ordering & quality

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