홈 배터리 관리 IC 배터리 충전기 IC
홈
배터리 관리 IC
배터리 충전기 IC

BQ25895M

활성

3.1A 부스트 및 HVDCP를 지원하는 I2C 1셀 5A 벅 배터리 충전기

지금 주문
데이터 시트

BQ25895M

활성
데이터 시트 지금 주문

제품 상세 정보

Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features 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 D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 5 Vin (max) (V) 14 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 3.84 Battery charge voltage (max) (V) 4.6 Absolute max Vin (max) (V) 22 Control topology Switch-Mode Buck Control interface I2C Features 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 D+/D-/BC1.2 integrated, USB OTG integrated Vin (min) (V) 3.9 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² 4 x 4
  • High efficiency 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 / 12 V)
    • Low power PFM mode for light load operations
  • Boost mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz / 1.5-MHz boost converter with up-to 3.1 A output
    • 93% Boost efficiency at 5 V at 1 A output
    • Support down-to 2.5V battery
    • Support PWM only or PFM/PWM control for light load efficiency
  • Integrated control to switch between charge and boost mode
  • 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 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters
  • 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)
  • 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 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 / 12 V)
    • Low power PFM mode for light load operations
  • Boost mode operation with adjustable output from 4.5 V to 5.5 V
    • Selectable 500-KHz / 1.5-MHz boost converter with up-to 3.1 A output
    • 93% Boost efficiency at 5 V at 1 A output
    • Support down-to 2.5V battery
    • Support PWM only or PFM/PWM control for light load efficiency
  • Integrated control to switch between charge and boost mode
  • 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 14V for wide range of adapters
    • Auto detect USB SDP, CDP, DCP, and non-standard adapters
  • 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)
  • 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

The BQ25895M is a 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 I2C Serial interface with charging and system settings makes the device a truly flexible solution.

The BQ25895M is a 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 I2C Serial interface with charging and system settings makes the device a truly flexible solution.
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기술 자료

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10개 모두 보기
유형 직함 날짜
* Data sheet BQ25895M I2C Controlled Single Cell Fast Charger with MaxChargeTM Technology for High Input Voltage and Adjustable Voltage 3.1 A Boost Operation datasheet (Rev. C) PDF | HTML 2022/10/17
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30
Application note Extracting Maximum Power from an Adapter with Input Current Optimization Feature (Rev. C) 2019/08/02
Application note Dynamic Power-Path Mgmt & Dynamic Power Mgmt (Rev. A) 2018/05/01
Application note Battery Charger Overload Protection in Boost Mode Operation 2017/07/12
Application note Port Detection for Power Banks 2016/04/08
EVM User's guide bq25890/892/895/895M EVM (PWR664) User's Guide (Rev. B) PDF | HTML 2015/11/24
Application note Using the bq2589x ADC to Estimate Battery Temperature 2015/05/04
Analog Design Journal Extract maximum power from the supply when charging a battery 2014/04/11
Analog Design Journal Dynamic power management for faster, more efficient battery charging 2013/10/28

설계 및 개발

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평가 보드

BQ25895MEVM-664 — bq25895M 전체 충전기 평가 모듈

The bq25895M evaluation module (EVM) is a complete charger module for evaluating the highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smartphone and tablet applications.

사용 설명서: PDF | HTML
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주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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