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BQ2031

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具有用户可选充电算法的开关模式铅酸电池充电器

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BQ2031

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米6体育平台手机版_好二三四详情

Number of series cells 6 Charge current (max) (A) 2 Vin (max) (V) 5.5 Cell chemistry Lead Acid Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
Number of series cells 6 Charge current (max) (A) 2 Vin (max) (V) 5.5 Cell chemistry Lead Acid Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 20 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (D) 16 59.4 mm² 9.9 x 6
  • Conforms to battery manufacturers' charge recommendations for cyclic and float charge
  • Pin-selectable charge algorithms

    • - Two-Step Voltage with temperature-compensated constant-voltage maintenance
    - Two-Step Current with constant-rate pulsed current maintenance
    - Pulsed Current: hysteretic, on-demand pulsed current
  • Pin-selectable charge termination by maximum voltage, 2V, minimum current, and maximum time
  • Pre-charge qualification detects shorted, opened, or damaged cells and conditions battery
  • Charging continuously qualified by temperature and voltage limits
  • Internal temperature-compensated voltage reference
  • Pulse-width modulation control

    • - Ideal for high-efficiency switch-mode power conversion
    - Configurable for linear or gated current use
  • Direct LED control outputs display charge status and fault conditions
  • Conforms to battery manufacturers' charge recommendations for cyclic and float charge
  • Pin-selectable charge algorithms

    • - Two-Step Voltage with temperature-compensated constant-voltage maintenance
    - Two-Step Current with constant-rate pulsed current maintenance
    - Pulsed Current: hysteretic, on-demand pulsed current
  • Pin-selectable charge termination by maximum voltage, 2V, minimum current, and maximum time
  • Pre-charge qualification detects shorted, opened, or damaged cells and conditions battery
  • Charging continuously qualified by temperature and voltage limits
  • Internal temperature-compensated voltage reference
  • Pulse-width modulation control

    • - Ideal for high-efficiency switch-mode power conversion
    - Configurable for linear or gated current use
  • Direct LED control outputs display charge status and fault conditions

The bq2031 Lead-Acid Fast Charge IC is designed to optimize charging of lead-acid chemistry batteries. A flexible pulse-width modulation regulator allows the bq2031 to control constant-voltage, constant-current, or pulsed-current charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum for high charge current applications.

A charge cycle begins when power is applied or the battery is replaced. For safety, charging is inhibited until the battery voltage is within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2031 provides trickle-currentcharging until the voltage rises into the allowed range or an internal timer runs out and places the bq2031 in a Fault condition. This procedure prevents high-current charging of cells that are possibly damaged or reversed. Charging is inhibited anytime the temperature of the battery is outside the configurable, allowed range. All voltage thresholds are temperature-compensated.

The bq2031 terminates fast (bulk) charging based on the following:

  • Maximum voltage
  • Second difference of cell voltage (2V)
  • Minimum current (in constant-voltage charging)
  • Maximum time-out (MTO)
    • After bulk charging, the bq2031 provides temperature-compensated maintenance (float) charging to maintain battery capacity.

    The bq2031 Lead-Acid Fast Charge IC is designed to optimize charging of lead-acid chemistry batteries. A flexible pulse-width modulation regulator allows the bq2031 to control constant-voltage, constant-current, or pulsed-current charging. The regulator frequency is set by an external capacitor for design flexibility. The switch-mode design keeps power dissipation to a minimum for high charge current applications.

    A charge cycle begins when power is applied or the battery is replaced. For safety, charging is inhibited until the battery voltage is within configured limits. If the battery voltage is less than the low-voltage threshold, the bq2031 provides trickle-currentcharging until the voltage rises into the allowed range or an internal timer runs out and places the bq2031 in a Fault condition. This procedure prevents high-current charging of cells that are possibly damaged or reversed. Charging is inhibited anytime the temperature of the battery is outside the configurable, allowed range. All voltage thresholds are temperature-compensated.

    The bq2031 terminates fast (bulk) charging based on the following:

  • Maximum voltage
  • Second difference of cell voltage (2V)
  • Minimum current (in constant-voltage charging)
  • Maximum time-out (MTO)
    • After bulk charging, the bq2031 provides temperature-compensated maintenance (float) charging to maintain battery capacity.
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    类型 标题 下载最新的英语版本 日期
    * 数据表 Lead-Acid Fast-Charge IC 数据表 1999年 9月 5日
    选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
    应用手册 Simple MPPT based Lead acid charger using BQ2031 (Rev. A) 2017年 8月 8日
    模拟设计期刊 2011 年第 4 期模拟应用学报 2011年 11月 9日
    模拟设计期刊 太阳能充电解决方案可提供用于多节的窄电压 DC/DC 系统总线 2011年 11月 9日
    用户指南 DV2031S2 Lead-Acid Charger Development System Control of On-Board p-FET (Rev. B) 2007年 3月 16日
    应用手册 U-510 Using the bq2031 to Charge Lead-Acid Batteries 1999年 9月 5日

    设计和开发

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    评估模块 (EVM) 用 GUI

    SLVC024 — bq24715 EVM GUI Package

    支持的米6体育平台手机版_好二三四和硬件

    支持的米6体育平台手机版_好二三四和硬件

    米6体育平台手机版_好二三四
    电池充电器 IC
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    PDIP (N) 16 Ultra Librarian
    SOIC (D) 16 Ultra Librarian
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    订购和质量

    包含信息：
    • RoHS
    • REACH
    • 器件标识
    • 引脚镀层/焊球材料
    • MSL 等级/回流焊峰值温度
    • MTBF/时基故障估算
    • 材料成分
    • 鉴定摘要
    • 持续可靠性监测
    包含信息：
    • 制造厂地点
    • 封装厂地点

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