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BQ25188

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I2C, 1A single cell linear battery charger, 18V input, powerpath, ship mode and battery tracking

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BQ25188

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Detalles del producto

Number of series cells 1 Charge current (max) (A) 1 Vin (max) (V) 18 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), 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) 18 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), 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) 8 1.752689 mm² 1.783 x 0.983
  • 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 3.6V to 4.65V in 10mV steps
    • Li-ion, Li-Poly, and LiFePO4 chemistries support
    • 5mA to 1A configurable fast charge current
    • 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 3.6V to 4.65V in 10mV steps
    • Li-ion, Li-Poly, and LiFePO4 chemistries support
    • 5mA to 1A configurable fast charge current
    • 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 BQ25188 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. 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 BQ25188 is a linear battery charger IC focusing on small solution size and low quiescent current for extending battery life. The device is available in an 8-ball chipscale package which does not need HDI PCB process for fabrication thereby reducing the PCB cost. 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 BQ25188 I2 C Controlled, 1-Cell, 1A Linear Battery Charger with Power Path, Ship Mode, Shutdown Mode, Battery Tracking VINDPM, and Wide VIN Support datasheet PDF | HTML 19 nov 2024
EVM User's guide BQ25188 Evaluation Module User's Guide PDF | HTML 29 oct 2024

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BQ25188EVM — Módulo de evaluación BQ25188

El módulo de evaluación (EVM) BQ25188EVM se utiliza para evaluar el dispositivo BQ25188. El EVM admite corrientes de carga de hasta 1 A y corrientes SYS de hasta 3 A. El BQ25188EVM proporciona un MR externo para la evaluación de la funcionalidad del botón pulsador del dispositivo, un circuito de (...)
Guía del usuario: PDF | HTML
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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