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BQ25190

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I²C 1-cell 1A linear battery charger with integrated buck-boost, DVS buck, LDOs, ADC and power path

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Data sheet

BQ25190

ACTIVE
Data sheet Order now

Product details

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 25 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.65 Absolute max Vin (max) (V) 25 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Boost/Buck-Boost, Buck, IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 25 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.65 Absolute max Vin (max) (V) 25 Control topology Linear Control interface I2C Features BAT temp thermistor monitoring (JEITA profile), Boost/Buck-Boost, Buck, IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YBG) 30 5.46 mm² 2.6 x 2.1
  • Integrated 1A power path linear battery charger
    • 3.0V to 18.0V input voltage operating range
    • Input voltage up to 25V tolerant
    • Configurable battery regulation voltage with ±0.5% accuracy from 3.5V to 4.65V in 10mV steps
    • 5mA to 1A configurable fast charge current
    • 55mΩ BATFET on-resistance
    • Up to 2.5A discharge current to support high system loads
    • Fully programmable JEITA profile for safe charging over temperature
  • Power path management for powering the system and charging the battery
    • Regulated system voltage ranging from 4.4V to 4.9V in addition to battery voltage tracking and input pass-through options
    • Configurable input current limit
    • Dynamic power path management optimizes charging from weak adapters
    • Selectable adapter or battery for system power
    • Advanced system reset mechanisms
  • Ultra-low quiescent current modes
    • 2µA battery quiescent current in battery mode
    • 15nA battery quiescent current in ship mode
  • Integrated Buck converter with I2C and GPIO programmable DVS output
    • 0.36µA quiescent current from system
    • 0.4V to 1.575V output voltage in 12.5mV steps or 0.4V to 3.6V output voltage in 25mV/50mV steps
    • Up to 600mA output current
  • Integrated Buck-boost converter with I2C programmable DVS output
    • 0.1µA quiescent current from system
    • 1.7V to 5.2V output voltage in 50mV steps
    • Up to 600mA output current for VSYS ≥ 3.0V, VBBOUT = 3.3V
  • Integrated I2C programmable LDOs (LDO1 and LDO2)
    • 25nA quiescent current
    • 0.8V to 3.6V output voltage in 50mV steps
    • Up to 200mA output current
    • LDO1 capabal of remaining on in Ship mode
    • Configurable LDO or Bypass mode
    • Dedicated input pins
  • Integrated fault protection for safety
    • Input current limit and overvoltage protection
    • Battery, integrated rail overcurrent protection
    • Battery depletion protection
    • Thermal regulation and thermal shutdown
  • Integrated 12-bit ADC to monitor input current, BATFET current, input voltage, battery voltage, battery temperature or external voltage signals
  • Integrated 1A power path linear battery charger
    • 3.0V to 18.0V input voltage operating range
    • Input voltage up to 25V tolerant
    • Configurable battery regulation voltage with ±0.5% accuracy from 3.5V to 4.65V in 10mV steps
    • 5mA to 1A configurable fast charge current
    • 55mΩ BATFET on-resistance
    • Up to 2.5A discharge current to support high system loads
    • Fully programmable JEITA profile for safe charging over temperature
  • Power path management for powering the system and charging the battery
    • Regulated system voltage ranging from 4.4V to 4.9V in addition to battery voltage tracking and input pass-through options
    • Configurable input current limit
    • Dynamic power path management optimizes charging from weak adapters
    • Selectable adapter or battery for system power
    • Advanced system reset mechanisms
  • Ultra-low quiescent current modes
    • 2µA battery quiescent current in battery mode
    • 15nA battery quiescent current in ship mode
  • Integrated Buck converter with I2C and GPIO programmable DVS output
    • 0.36µA quiescent current from system
    • 0.4V to 1.575V output voltage in 12.5mV steps or 0.4V to 3.6V output voltage in 25mV/50mV steps
    • Up to 600mA output current
  • Integrated Buck-boost converter with I2C programmable DVS output
    • 0.1µA quiescent current from system
    • 1.7V to 5.2V output voltage in 50mV steps
    • Up to 600mA output current for VSYS ≥ 3.0V, VBBOUT = 3.3V
  • Integrated I2C programmable LDOs (LDO1 and LDO2)
    • 25nA quiescent current
    • 0.8V to 3.6V output voltage in 50mV steps
    • Up to 200mA output current
    • LDO1 capabal of remaining on in Ship mode
    • Configurable LDO or Bypass mode
    • Dedicated input pins
  • Integrated fault protection for safety
    • Input current limit and overvoltage protection
    • Battery, integrated rail overcurrent protection
    • Battery depletion protection
    • Thermal regulation and thermal shutdown
  • Integrated 12-bit ADC to monitor input current, BATFET current, input voltage, battery voltage, battery temperature or external voltage signals

The BQ25190 is a highly integrated battery management unit that integrates the most commonly used functions for wearable devices: a linear charger with power path, one step-down switching converter (Buck), one buck-boost switching converter (Buck-boost), two LDOs (LDO1 and LDO2), manual reset with timer (MR) , multi-channel analog-to-digital converter (ADC), as well as four multifunctional general-purpose input/outputs (GPIO).

The integrated charger supports charge current from 5mA to 1A that enables quick and accurate charging while providing a regulated voltage to the system. The regulated system voltage (VSYS) can be configured through I2C based on the recommended operating conditions of the downstream system loads. Other operation parameters such as the input current limit, charge current, Buck converters’ output voltages, Buck-boost converters’ output voltage, and LDOs’ output voltages are also programmable through the I2C interface.

The BQ25190 features low quiescent current during operation and shutdown, which enables longer battery life.

The BQ25190 is a highly integrated battery management unit that integrates the most commonly used functions for wearable devices: a linear charger with power path, one step-down switching converter (Buck), one buck-boost switching converter (Buck-boost), two LDOs (LDO1 and LDO2), manual reset with timer (MR) , multi-channel analog-to-digital converter (ADC), as well as four multifunctional general-purpose input/outputs (GPIO).

The integrated charger supports charge current from 5mA to 1A that enables quick and accurate charging while providing a regulated voltage to the system. The regulated system voltage (VSYS) can be configured through I2C based on the recommended operating conditions of the downstream system loads. Other operation parameters such as the input current limit, charge current, Buck converters’ output voltages, Buck-boost converters’ output voltage, and LDOs’ output voltages are also programmable through the I2C interface.

The BQ25190 features low quiescent current during operation and shutdown, which enables longer battery life.

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Type Title Date
* Data sheet BQ25190 I2 C Controlled 1-Cell, 1A, Linear Battery Charger with Integrated Buck-Boost, DVS Buck, LDOs, ADC, and Power Path datasheet (Rev. A) PDF | HTML 20 Dec 2024
User guide BQ25190EVM User's Guide PDF | HTML 18 Aug 2023
Certificate BQ25190EVM EU Declaration of Conformity (DoC) 07 Aug 2023

Design & development

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

Evaluation board

BQ25190EVM — BQ25190 evaluation module

The BQ25190EVM is an evaluation module for the BQ25190 integrated battery charge management IC. The BQ25190 integrates the most common functions for wearable devices: linear charger, regulated output, manual reset with timer and ship-mode function.
User guide: PDF | HTML
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DSBGA (YBG) 30 Ultra Librarian
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