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BQ24081-Q1

ACTIVE

1-cell, 1-A, single Chip, Li-ion and Li-polymer Automotive charger

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BQ25171-Q1 ACTIVE Automotive, 800-mA linear battery charger for 1- to 2-cell Li-ion, LiFePO4, and 1- to 6-cell NiMH This product is an automotive 800-mA Linear Battery Charger for single and multicell Li-ion, LiFePO4 and NiMH

Product details

Number of series cells 1 Charge current (max) (A) 1 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 max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Automotive Operating temperature range (°C) -40 to 125
Number of series cells 1 Charge current (max) (A) 1 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 max Vin (max) (V) 7 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Automotive Operating temperature range (°C) -40 to 125
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-mm × 3-mm SON 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-mm × 3-mm SON Package

The bq24080-Q1 and bq24081-Q1 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-Q1 and bq24081-Q1 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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* Data sheet bq2408x-Q1 1-A, Single Chip, Li-Ion and Li-Pol Automotive Charger datasheet (Rev. B) PDF | HTML 27 Jun 2017

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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