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電池管理 IC
電池充電器 IC

BQ21061

現行

500-mA 單芯線性充電器，具備 10-nA 運送模式、電源路徑、穩壓系統電壓與 LDO

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產品規格表

BQ21061

現行
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產品詳細資料

Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Charge current (max) (A) 0.5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.15 Vin (max) (V) 5.5 Absolute max Vin (max) (V) 20 Control topology Linear Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.6 Control interface I2C Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Charge current (max) (A) 0.5 Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, Integrated LDO, Power Path, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.15 Vin (max) (V) 5.5 Absolute max Vin (max) (V) 20 Control topology Linear Battery charge voltage (min) (V) 3.6 Battery charge voltage (max) (V) 4.6 Control interface I2C Operating temperature range (°C) -40 to 85
DSBGA (YFP) 20 3.96 mm² (— mm × — mm)
  • Linear battery charger with 1.25-mA to 500-mA fast charge current range
    • 0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
    • Configurable termination current supporting down to 0.5 mA
    • 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
    • Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
  • Power Path management for powering system and charging battery
    • I 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though options
    • Dynamic power path management optimizes charging from weak adapters
    • Advanced I 2C control allows host to disconnect the battery or adapter as needed
  • I 2C Configurable load switch or up to 150-mA LDO output
    • Programmable range from 0.6 V to 3.7 V in 100-mV steps
  • Ultra low Iddq for extended battery life
    • 10-nA Ship mode battery Iq
    • 400-nA Iq While powering the system (PMID and VDD on)
  • One push-button wake-up and reset input with adjustable timers
    • Supports system power cycle and HW reset
  • Safety-Related Certifications
    • TUV IEC 62368 Certification
  • 20-Pin 2-mm x 1.6-mm CSP package
  • 11-mm 2 Total solution size
  • Linear battery charger with 1.25-mA to 500-mA fast charge current range
    • 0.5% Accurate I 2C programmable battery regulation voltage ranging from 3.6 V to 4.6 V in 10-mV steps
    • Configurable termination current supporting down to 0.5 mA
    • 20-V Tolerant input with typical 3.4-V to 5.5-V input voltage operating range
    • Programmable thermal charging profile, fully configurable hot, warm, cool and cold thresholds
  • Power Path management for powering system and charging battery
    • I 2C Programmable regulated system voltage (PMID) ranging from 4.4V to 4.9V in addition to battery voltage tracking and Input pass-though options
    • Dynamic power path management optimizes charging from weak adapters
    • Advanced I 2C control allows host to disconnect the battery or adapter as needed
  • I 2C Configurable load switch or up to 150-mA LDO output
    • Programmable range from 0.6 V to 3.7 V in 100-mV steps
  • Ultra low Iddq for extended battery life
    • 10-nA Ship mode battery Iq
    • 400-nA Iq While powering the system (PMID and VDD on)
  • One push-button wake-up and reset input with adjustable timers
    • Supports system power cycle and HW reset
  • Safety-Related Certifications
    • TUV IEC 62368 Certification
  • 20-Pin 2-mm x 1.6-mm CSP package
  • 11-mm 2 Total solution size

The BQ21061 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a LDO, and push-button controller.

The BQ21061 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation.

The BQ21061 is a highly integrated battery charge management IC that integrates the most common functions for wearable, portable and small medical devices, namely a charger, a regulated output voltage rail for system power, a LDO, and push-button controller.

The BQ21061 IC integrates a linear charger with Power Path that enables quick and accurate charging for small batteries while providing a regulated voltage to the system. The regulated system voltage (PMID) output may be configured through I 2C based on the recommended operating condition of downstream IC’s and system loads for optimal system operation.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 BQ21061 I2C Controlled 1-Cell 500-mA Linear Battery Charger With 10-nA Ship Mode, Power Path With Regulated System (PMID) Voltage, And LDO datasheet (Rev. A) PDF | HTML 2023/8/1
技術文章 3 quiescent-current (Iq) specifications you need to understand PDF | HTML 2021/11/12
應用說明 State of Charge Estimation Using Smart Battery Charger PDF | HTML 2021/10/11
技術文章 Benefits of rechargeable batteries in real-time location system trackers PDF | HTML 2020/8/10
技術文章 Accelerate your electric mask design PDF | HTML 2020/7/1
應用說明 BQ21061 Two Layer Small Form Factor Design For Cost Optimized PCB 2019/12/18
應用說明 Battery Discharge Implementation in Warm or Hot Temperatures 2019/7/2
技術文章 Pull the tab: How to implement ship mode in your lithium-ion battery design PDF | HTML 2019/2/20

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開發板

BQ21061EVM — 具有 LDO 的 I2C 控制單芯 500-mA PowerPath 線性電池充電器評估模組

BQ21061 評估模組 (EVM) 是一款具有 LDO 和低 IQ 的整合式 I2C 控制的一芯 500-mA PowerPath 線性電池充電器，可大幅延長電池續航力。本裝置支援從 1.25mA 至 500mA 的充電電流。輸入電流限制、充電電流、LDO、穩壓輸出和其它參數可透過 I2C 介面進行程式化。該電池採用的標準鋰離子充電曲線有三方面：預充電、定電流和定電壓。

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SLUC683 — BQ21061 Setup Guide Tool

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