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電池充電器 IC

BQ25960

現行

具有旁路和雙輸入選擇器的 I2C 控制 1 芯 8-A 開關電容並聯電池充電器

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產品規格表

BQ25960

現行
產品規格表 立即訂購

產品詳細資料

Number of series cells 1 Charge current (max) (A) 8 Vin (max) (V) 12 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.77 Absolute max Vin (max) (V) 40 Control topology Flash Charger Control interface I2C Features Input OVP, Integrated ADC Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 8 Vin (max) (V) 12 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 3.5 Battery charge voltage (max) (V) 4.77 Absolute max Vin (max) (V) 40 Control topology Flash Charger Control interface I2C Features Input OVP, Integrated ADC Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YBG) 36 5.76 mm² 2.4 x 2.4
  • 98.1% peak efficiency switched cap parallel charger supporting 8-A fast charge
  • Patent pending dual phase switched cap architecture optimized for highest efficiency
    • Input voltage is 2x battery voltage
    • Output current is 2x of input current
    • Reduces power loss across input cable
  • Integrated 5-A Bypass Mode fast charge
    • 21-mΩ Rdson charging path resistance to support 5-A input and 5-A output charging current
  • Dual-input power mux controller for source selection during fast charging and USB On-The-Go (OTG)/ reverse TX Mode

  • Support wide range of input voltage

    • Up to 12.75-V operational input voltage

    • Maximum 40-V input voltage with optional external ACFET and 20-V without external ACFET

  • Parallel charging with synchronized dual BQ25960 operations for up to 13-A charging current

  • Integrated programmable protection features for safe operation
    • Input overvoltage protection (BUSOVP) and battery overvoltage protection (BATOVP)
    • Input overcurrent protection (BUSOCP) and battery overcurrent protection (BATOCP)
    • Output overvoltage protection (VOUTOVP)
    • Input undercurrent protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
    • Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
    • Junction overtemperature protection (TDIE_FLT)
  • Programmable settings for system optimization
    • Interrupts and interrupt masks
    • ADC readings and configuration

    • Alarm functions for host control

  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • 98.1% peak efficiency switched cap parallel charger supporting 8-A fast charge
  • Patent pending dual phase switched cap architecture optimized for highest efficiency
    • Input voltage is 2x battery voltage
    • Output current is 2x of input current
    • Reduces power loss across input cable
  • Integrated 5-A Bypass Mode fast charge
    • 21-mΩ Rdson charging path resistance to support 5-A input and 5-A output charging current
  • Dual-input power mux controller for source selection during fast charging and USB On-The-Go (OTG)/ reverse TX Mode

  • Support wide range of input voltage

    • Up to 12.75-V operational input voltage

    • Maximum 40-V input voltage with optional external ACFET and 20-V without external ACFET

  • Parallel charging with synchronized dual BQ25960 operations for up to 13-A charging current

  • Integrated programmable protection features for safe operation
    • Input overvoltage protection (BUSOVP) and battery overvoltage protection (BATOVP)
    • Input overcurrent protection (BUSOCP) and battery overcurrent protection (BATOCP)
    • Output overvoltage protection (VOUTOVP)
    • Input undercurrent protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
    • Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
    • Junction overtemperature protection (TDIE_FLT)
  • Programmable settings for system optimization
    • Interrupts and interrupt masks
    • ADC readings and configuration

    • Alarm functions for host control

  • Integrated 16-bit ADC for voltage, current, and temperature monitoring

The BQ25960 is a 98.1% peak efficiency, 8-A battery charging solution using switch capacitor architecture for 1-cell Li-ion battery. The switched cap architecture allows the cable current to be half the charging current, reducing the cable power loss, and limiting temperature rise. The dual-phase architecture increases charging efficiency and reduces the input and output cap requirements. When used with a main charger such as BQ2561x or BQ2589x, the system enables full charging cycle from trickle charge to termination with low power loss at Constant Current (CC) and Constant Voltage (CV) Mode.

The BQ25960 supports 5-A Bypass Mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in Bypass Mode charging path is 21 mΩ for high-current operation. The integrated Bypass Mode allows backward compatibility of 5-V fast charging adapter to charge 1-cell battery.

The device supports dual input configuration through integrated mux control and driver for external N-FETs. It also allows single input with no external N-FET or single N-FET.

The device integrates all the necessary protection features to support safe charging, including input overvoltage and overcurrent protection, output overvoltage and overcurrent protection, input undercurrent and reverse-current protection, temperature sensing for the battery and cable, and junction overtemperature protection in both Switched Cap and Bypass Mode.

The device includes a 16-bit analog-to-digital converter (ADC) to provide VAC voltage, bus voltage, bus current, output voltage, battery voltage, battery current, input connector temperature, battery temperature, junction temperature, and other calculated measurements needed to manage the charging of the battery from the adapter, or wireless input, or power bank.

The BQ25960 is a 98.1% peak efficiency, 8-A battery charging solution using switch capacitor architecture for 1-cell Li-ion battery. The switched cap architecture allows the cable current to be half the charging current, reducing the cable power loss, and limiting temperature rise. The dual-phase architecture increases charging efficiency and reduces the input and output cap requirements. When used with a main charger such as BQ2561x or BQ2589x, the system enables full charging cycle from trickle charge to termination with low power loss at Constant Current (CC) and Constant Voltage (CV) Mode.

The BQ25960 supports 5-A Bypass Mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in Bypass Mode charging path is 21 mΩ for high-current operation. The integrated Bypass Mode allows backward compatibility of 5-V fast charging adapter to charge 1-cell battery.

The device supports dual input configuration through integrated mux control and driver for external N-FETs. It also allows single input with no external N-FET or single N-FET.

The device integrates all the necessary protection features to support safe charging, including input overvoltage and overcurrent protection, output overvoltage and overcurrent protection, input undercurrent and reverse-current protection, temperature sensing for the battery and cable, and junction overtemperature protection in both Switched Cap and Bypass Mode.

The device includes a 16-bit analog-to-digital converter (ADC) to provide VAC voltage, bus voltage, bus current, output voltage, battery voltage, battery current, input connector temperature, battery temperature, junction temperature, and other calculated measurements needed to manage the charging of the battery from the adapter, or wireless input, or power bank.
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類型 標題 日期
* Data sheet BQ25960 I2C Controlled, Single Cell 8-A Switched Cap Parallel Battery Charger datasheet 2021年 2月 17日
EVM User's guide BQ25960EVM (BMS041) Evaluation Module User's Guide PDF | HTML 2021年 4月 13日

設計與開發

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開發板

BQ25960EVM — BQ25960 I2C 控制 1 芯、8-A 切換式電容並聯電池充電器評估模組

BQ25960EVM 評估模組 (EVM) 是一款完整的充電器模組，適合評估採用 WCSP 封裝的高度整合 BQ25960 切換式電容電池充電器，適用於各種智慧型手機和平板電腦中的單芯鋰離子與鋰聚合物電池。BQ25960EVM 可提供完整的快速充電解決方案。典型使用案例是 BQ25611D 降壓充電器執行預充電和充電終端，會由一個或兩個 BQ25960 切換式電容充電器執行快速充電，以實現最高效率。
使用指南: PDF | HTML
要求
驅動程式或資料庫

BQ25980SW-LINUX — 適用於 BQ25980 的 Linux 驅動程式

The Linux driver supports the BQ25980 I2C Controlled 2-cell, 8-A switched cap parallel battery charger. The Linux driver supports communication through the I2C bus and interfaces with the power supply sub-system.

Linux mainline status

Available in Linux mainline: Yes
Available through git.ti.com: No

(...)

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