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BQ25188

AKTIV

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

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Datenblatt

BQ25188

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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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* 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 Okt 2024

Design und Entwicklung

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Evaluierungsplatine

BQ25188EVM — BQ25188 Evaluierungsmodul

Das BQ25188EVM Evaluierungsmodul (EVM) wird zum Evaluieren des BQ25188-Bausteins verwendet. Das EVM unterstützt Ladeströme bis zu 1 A und SYS-Ströme bis zu 3 A. Das BQ25188EVM bietet einen externen MR zur Evaluierung der Drucktastenfunktionalität des Bausteins, eine TS-Potenziometer-Schaltung zur (...)
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