Product details

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 interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Operating Vin (Min) (V) 4.5 Rating Catalog
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 interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Operating Vin (Min) (V) 4.5 Rating Catalog
VSON (DRC) 10 9 mm² 3.00 x 3.00 VSON (DRC) 10 9 mm² 3 x 3
  • 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
  • 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

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.

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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Technical documentation

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Type Title Date
* Data sheet BQ24080, BQ24081 1-A, Single-Chip, Li-Ion and Li-Pol Charger IC datasheet (Rev. F) PDF | HTML 08 May 2017
Technical article When to use rechargeable batteries in small battery applications 01 Oct 2019
Technical article Should I use a linear charger or a switching charger? 31 Oct 2015
Technical article Summertime and the livin' is easy 20 Jun 2014
More literature Power Bank Charger ICs 25 Feb 2013
EVM User's guide bq24081 EVM 1-A Single-Chip Li-Ion and Li-Pol Charge Mgmt IC 06 Sep 2006

Design & development

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Evaluation board

BQ24081EVM — 1-A Single-Chip Li-Ion & Li-Pol Charger

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 (...)

User guide: PDF
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Gerber file

Linear Charger NTC Calculator

SLUC670.ZIP (350 KB)
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VSON (DRC) 10 View options

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