제품 상세 정보

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Charge current (max) (A) 1 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, Solar input/MPPT, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3 Vin (max) (V) 18 Absolute max Vin (max) (V) 25 Control topology Linear Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 125
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Charge current (max) (A) 1 Features BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, Solar input/MPPT, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3 Vin (max) (V) 18 Absolute max Vin (max) (V) 25 Control topology Linear Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.65 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 125
WSON (DLH) 10 4.4 mm² (2.2 mm × 2 mm)
  • 1A linear battery charger
    • 3.0V to 18V input voltage operating range
    • 25V tolerant input voltage
    • External resistor programmable operation
      • ILIM/VSET pin sets battery regulation voltage to 3.6V, 3.65V, 4.02V, 4.1V, 4.2V, 4.35V, or 4.4V
      • ILIM/VSET pin sets input current limit to 100mA, 500mA, or 1100mA
      • ISET pin sets charge current from 5mA to 1A
    • Supports Li-ion, Li-poly, and LiFePO4 chemistries
    • 115mΩ battery FET on-resistance
    • Supports up to 3.125A discharge current for high system loads
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) at 4.5V
    • Configurable input current limit
    • Supports USB suspend mode
    • Battery tracking input voltage dynamic power management (VINDPM) for high-impedance input sources
    • Dynamic power path management optimizes charging from weak adapters
  • Ultra-low quiescent current
    • 4µA in battery-only mode
    • 30µA input adapter IQ in sleep mode
    • 3.2µA battery discharge current in factory mode
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery undervoltage protection (BUVLO)
    • 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)
    • Safety timer fault
    • System short protection

    • System overvoltage protection

    • Short and open protection on the ISET and ILIM/VSET pins
  • 1A linear battery charger
    • 3.0V to 18V input voltage operating range
    • 25V tolerant input voltage
    • External resistor programmable operation
      • ILIM/VSET pin sets battery regulation voltage to 3.6V, 3.65V, 4.02V, 4.1V, 4.2V, 4.35V, or 4.4V
      • ILIM/VSET pin sets input current limit to 100mA, 500mA, or 1100mA
      • ISET pin sets charge current from 5mA to 1A
    • Supports Li-ion, Li-poly, and LiFePO4 chemistries
    • 115mΩ battery FET on-resistance
    • Supports up to 3.125A discharge current for high system loads
  • Power path management for powering the system and charging the battery
    • Regulated system voltage (SYS) at 4.5V
    • Configurable input current limit
    • Supports USB suspend mode
    • Battery tracking input voltage dynamic power management (VINDPM) for high-impedance input sources
    • Dynamic power path management optimizes charging from weak adapters
  • Ultra-low quiescent current
    • 4µA in battery-only mode
    • 30µA input adapter IQ in sleep mode
    • 3.2µA battery discharge current in factory mode
  • Integrated fault protection
    • Input overvoltage protection (VIN_OVP)
    • Battery undervoltage protection (BUVLO)
    • 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)
    • Safety timer fault
    • System short protection

    • System overvoltage protection

    • Short and open protection on the ISET and ILIM/VSET pins

The BQ25185 is a linear battery charger IC optimized for small solution size and low quiescent current to extend battery life. The device is available in a small leadless package with a thermal pad for heat dissipation. The device supports up to 1A charging and system loads up to 3.125A.

The battery is charged using a standard Li-ion or LiFePO4 charging 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 optimized for battery-to-battery charging with 3V minimum input voltage operation and can withstand 25V absolute maximum line transients. The device integrates a single pushbutton input to reduce the total solution footprint.

The BQ25185 is a linear battery charger IC optimized for small solution size and low quiescent current to extend battery life. The device is available in a small leadless package with a thermal pad for heat dissipation. The device supports up to 1A charging and system loads up to 3.125A.

The battery is charged using a standard Li-ion or LiFePO4 charging 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 optimized for battery-to-battery charging with 3V minimum input voltage operation and can withstand 25V absolute maximum line transients. The device integrates a single pushbutton input to reduce the total solution footprint.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀.
BQ25186 활성 전원 경로 및 태양광 입력을 지원하는 1A, I²C 제어 선형 배터리 충전기 BQ25186 has I2C interface
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
BQ25188 활성 I2C, 1A 단일 셀 선형 배터리 충전기, 18V 입력, PowerPath, 운송 모드 및 배터리 추적 BQ25188 has I2C interface and in WCSP package

기술 자료

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* 데이터 시트 BQ25185 1-Cell, 1A Standalone Linear Battery Charger with Power Path, Factory Mode, and Battery Tracking VINDPM datasheet (Rev. A) PDF | HTML 2026. 1. 9
애플리케이션 노트 Designing the TS Pin Network for Battery Chargers with Current-Based Battery NTC Temperature Sensing PDF | HTML 2026. 6. 22
Application brief Using Battery Tracking VINDPM to Make the Most of Solar and High-Impedance Power Sources PDF | HTML 2025. 3. 25
인증서 BQ25185EVM EU Declaration of Conformity (DoC) PDF | HTML 2023. 10. 26

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

BQ25185EVM — BQ25185 1셀, 1A 독립형 선형 배터리 충전기용 평가 모듈

BQ25185 평가 모델(EVM)은 사용자가 BQ25185의 다양한 작동과 기능을 평가하고 테스트할 수 있도록 설계되었습니다. EVM은 시각적 표시기가 있는 완전한 테스트 친화적 평가를 위해 설계되었습니다. BQ25185는 선형 충전, 조정 출력, 공장 모드 및 배터리 추적 VINDPM과 같은 태양광 기반 산업용 장치의 가장 일반적인 기능을 충전식 배터리와 통합하는 일체형 배터리 충전 관리 IC입니다.

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