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BQ25186

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Cargador de batería lineal controlado por circuito interintegrado (I²C) de 1 A con ruta de alimentac

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BQ25186

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Detalles del producto

Vin (min) (V) 3 Vin (max) (V) 18 Absolute max Vin (max) (V) 25 Charge current (max) (A) 1 Control topology Linear Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Rating Catalog Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, Solar input/MPPT, VINDPM (Input voltage threshold to maximize adaptor power) Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Control interface I2C Operating temperature range (°C) -40 to 125
Vin (min) (V) 3 Vin (max) (V) 18 Absolute max Vin (max) (V) 25 Charge current (max) (A) 1 Control topology Linear Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Rating Catalog Features BAT temp thermistor monitoring (JEITA profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, Solar input/MPPT, VINDPM (Input voltage threshold to maximize adaptor power) Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Control interface I2C Operating temperature range (°C) -40 to 125
WSON (DLH) 10 4.4 mm² 2.2 x 2
  • 1A linear battery charger
    • 3.0V to 18V input voltage operating range for battery-to-battery charging, USB adapters, and high impedance sources.
    • Configurable battery regulation voltage with 0.5% accuracy from 3.5V to 4.65V in 10mV steps
    • Li-ion, Li-Poly, and LiFePO4 chemistry compatible
    • 5mA to 1A configurable fast charge current
    • 115mΩ battery FET ON resistance
    • 55mΩ battery FET ON resistance
    • Up to 3A discharge current to support high system loads
    • Configurable NTC charging profile thresholds including JEITA support
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) ranging from 4.4V to 5.5V addition to battery voltage tracking.
    • Battery Tracking input voltage dynamic power management (VINDPM) for high impedance input sources
  • Ultra low quiescent current
    • 15nA Shutdown mode
    • 3.2µA Ship mode with button press wake
    • 4µA in Battery Only mode
    • 30µA Input adapter Iq in sleep mode
  • One push-button wake-up and reset input
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery short protection (BATSC)
    • Battery overcurrent protection (BATOCP)
    • Input current limit protection (ILIM)
    • Thermal regulation (TREG) and thermal shutdown (TSHUT)
    • Battery thermal fault protection (TS)
    • Watchdog and safety timer fault
  • 1A linear battery charger
    • 3.0V to 18V input voltage operating range for battery-to-battery charging, USB adapters, and high impedance sources.
    • Configurable battery regulation voltage with 0.5% accuracy from 3.5V to 4.65V in 10mV steps
    • Li-ion, Li-Poly, and LiFePO4 chemistry compatible
    • 5mA to 1A configurable fast charge current
    • 115mΩ battery FET ON resistance
    • 55mΩ battery FET ON resistance
    • Up to 3A discharge current to support high system loads
    • Configurable NTC charging profile thresholds including JEITA support
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) ranging from 4.4V to 5.5V addition to battery voltage tracking.
    • Battery Tracking input voltage dynamic power management (VINDPM) for high impedance input sources
  • Ultra low quiescent current
    • 15nA Shutdown mode
    • 3.2µA Ship mode with button press wake
    • 4µA in Battery Only mode
    • 30µA Input adapter Iq in sleep mode
  • One push-button wake-up and reset input
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery short protection (BATSC)
    • Battery overcurrent protection (BATOCP)
    • Input current limit protection (ILIM)
    • Thermal regulation (TREG) and thermal shutdown (TSHUT)
    • Battery thermal fault protection (TS)
    • Watchdog and safety timer fault

The BQ25186 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in a leadless, small package with a thermal pad giving thermal performance. The device can support up to 1A charging and system loads of up to 3A.

The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3V minimum input voltage operation and can withstand 25V absolute maximum line transients. The charger offers a wide operational VIN range for high impedance sources such as solar cells and wireless power. The device integrates a single push-button input to reduce the total solution footprint.

The BQ25186 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in a leadless, small package with a thermal pad giving thermal performance. The device can support up to 1A charging and system loads of up to 3A.

The battery is charged using a standard Li-ion or LiFePO4 charge profile with three phases: precharge, constant current and constant voltage. Thermal regulation provides the maximum charge current while managing the device temperature. The charger is also optimized for battery to battery charging with 3V minimum input voltage operation and can withstand 25V absolute maximum line transients. The charger offers a wide operational VIN range for high impedance sources such as solar cells and wireless power. The device integrates a single push-button input to reduce the total solution footprint.
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Documentación técnica

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* Data sheet BQ25186 1-Cell, 1A I2 C Linear Battery Charger with Power Path, Ship Mode, Shutdown Mode, and Battery Tracking VINDPM datasheet (Rev. A) PDF | HTML 17 ene 2025
EVM User's guide BQ25186 Evaluation Module User's Guide PDF | HTML 29 abr 2024

Diseño y desarrollo

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Placa de evaluación

BQ25186EVM — Módulo de evaluación BQ25186

El BQ25186EVM es un kit de evaluación para el circuito integrado (IC) de gestión de carga de la batería BQ25186. El BQ25186 es un cargador de batería lineal de 1 A controlado mediante circuito interintegrado (I2C) con ruta de alimentación en un pequeño encapsulado QFN con almohadilla térmica. El (...)
Guía del usuario: PDF | HTML
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WSON (DLH) 10 Ultra Librarian
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