Product
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BQ25892
  • BQ25892
  • BQ25892

BQ25892

ACTIVE

I2C 1cell 5A buck battery charger with NVDC Power Path and PSEL Linux mainline status

Texas Instruments BQ25892 Product Info

1 April 2026 3

Parameters

Rating

Catalog

Number of series cells

1

Cell chemistry

Li-Ion/Li-Polymer

Charge current (max) (A)

5

Features

BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB OTG integrated

Vin (min) (V)

3.9

Vin (max) (V)

14

Absolute max Vin (max) (V)

22

Control topology

Switch-Mode Buck

Battery charge voltage (min) (V)

3.84

Battery charge voltage (max) (V)

4.6

Control interface

I2C

Operating temperature range (°C)

-40 to 85

Package

WQFN (RTW)-24-16 mm² 4 x 4

Features

  • High efficiency 5-A, 1.5-MHz Switch Mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3-A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low power PFM Mode for light-load operations
  • USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
    • 93% Boost efficiency at 5 V at 1-A output
    • Accurate Hiccup Mode overcurent protection
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14 V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
  • Input Current Optimizer (ICO) to maximize input power without overloading adapters
  • Resistance Compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High Accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown
  • High efficiency 5-A, 1.5-MHz Switch Mode buck charge
    • 93% Charge efficiency at 2 A and 91% charge efficiency at 3-A charge current
    • Optimize for high voltage input (9 V to 12 V)
    • Low power PFM Mode for light-load operations
  • USB On-the-Go (OTG) with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-kHz and 1.5-MHz Boost Converter with up-to 2.4-A output
    • 93% Boost efficiency at 5 V at 1-A output
    • Accurate Hiccup Mode overcurent protection
  • Single input to support USB input and adjustable high voltage adapters
    • Support 3.9-V to 14-V input voltage range
    • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
    • Maximum power tracking by input voltage limit up-to 14 V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters (BQ25890)
  • Input Current Optimizer (ICO) to maximize input power without overloading adapters
  • Resistance Compensation (IRCOMP) from charger output to cell terminal
  • Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
  • Integrated ADC for system monitor (voltage, temperature, charge current)
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in Battery Supplement Mode
  • BATFET Control to support Ship Mode, wake up, and full system reset
  • Flexible autonomous and I2C Mode for optimal system performance
  • High integration includes all MOSFETs, current sensing and loop compensation
  • 12-µA Low battery leakage current to support Ship Mode
  • High Accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±7.5% Input current regulation
  • Safety
    • Battery temperature sensing for charge and Boost Mode
    • Thermal regulation and thermal shutdown

Description

The BQ25890, BQ25892 are highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

The BQ25890, BQ25892 are highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase.

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