產品詳細資料

Vin (min) (V) 6 Vin (max) (V) 22 Absolute max Vin (max) (V) 40 Charge current (max) (A) 8 Control topology Flash Charger Number of series cells 2 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Rating Catalog Features Input OVP, Integrated ADC Battery charge voltage (min) (V) 7 Battery charge voltage (max) (V) 9.54 Control interface I2C Operating temperature range (°C) -40 to 85
Vin (min) (V) 6 Vin (max) (V) 22 Absolute max Vin (max) (V) 40 Charge current (max) (A) 8 Control topology Flash Charger Number of series cells 2 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4 Rating Catalog Features Input OVP, Integrated ADC Battery charge voltage (min) (V) 7 Battery charge voltage (max) (V) 9.54 Control interface I2C Operating temperature range (°C) -40 to 85
DSBGA (YFF) 80 13.006845 mm² 4.071 x 3.195
  • 98.6% peak efficiency switched cap parallel charger supporting 2-cell battery and 8-A fast charge
  • Patent pending dual phase switched cap architecture optimized for highest efficiency
    • Input voltage is 2x battery voltage (7.0V to 9.54V)
    • Output current is 2x of input current (up to 4.75A)
    • Reduces power loss across input cable
  • Integrated 7-A bypass mode fast charge
    • 13mΩ charging path resistance for high current operation
  • Dual-input power mux controller for source selection
  • Support wide range of input voltage

    • Up to 22-V operational input voltage

    • Maximum 40-V input voltage with optional external ACFET and 28-V without external ACFET

  • Parallel charging with synchronized dual BQ25980 operations for up-to 12-A charging current

  • Integrated programmable protection features for safe operation
    • Input over-voltage protection (BUSOVP) and battery over-voltage protection (BATOVP)
    • Input over-current protection (BUSOCP) and battery over-current protection (BATOCP)
    • Output over-voltage protection (VOUTOVP)
    • Input under-current protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
    • Input short-circuit protection (BUSSCP)
    • Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
    • Junction over-temperature protection (TDIE_FLT)
    • Optional input over-voltage protection with external ACFET up to 40V
  • Programmable settings for system optimization
    • Interrupts and interrupt masks
    • ADC readings and configuration
  • Integrated 16-bit ADC for voltage, current and temperature monitoring
  • 98.6% peak efficiency switched cap parallel charger supporting 2-cell battery and 8-A fast charge
  • Patent pending dual phase switched cap architecture optimized for highest efficiency
    • Input voltage is 2x battery voltage (7.0V to 9.54V)
    • Output current is 2x of input current (up to 4.75A)
    • Reduces power loss across input cable
  • Integrated 7-A bypass mode fast charge
    • 13mΩ charging path resistance for high current operation
  • Dual-input power mux controller for source selection
  • Support wide range of input voltage

    • Up to 22-V operational input voltage

    • Maximum 40-V input voltage with optional external ACFET and 28-V without external ACFET

  • Parallel charging with synchronized dual BQ25980 operations for up-to 12-A charging current

  • Integrated programmable protection features for safe operation
    • Input over-voltage protection (BUSOVP) and battery over-voltage protection (BATOVP)
    • Input over-current protection (BUSOCP) and battery over-current protection (BATOCP)
    • Output over-voltage protection (VOUTOVP)
    • Input under-current protection (BUSUCP) and input reverse-current protection (BUSRCP) to detect adapter unplug and prevent boost-back
    • Input short-circuit protection (BUSSCP)
    • Battery and connector temperature monitoring (TSBAT_FLT and TSBUS_FLT)
    • Junction over-temperature protection (TDIE_FLT)
    • Optional input over-voltage protection with external ACFET up to 40V
  • Programmable settings for system optimization
    • Interrupts and interrupt masks
    • ADC readings and configuration
  • Integrated 16-bit ADC for voltage, current and temperature monitoring

The BQ25980 is a 98.6% peak efficiency, 8-A battery charging solution using dual-phase switched cap architecture for 2-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 BQ25790, the system enables the fast charging at the very low power loss from pre-charge through constant current (CC), constant voltage (CV), and termination.

The BQ25980 also supports 7-A bypass mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in bypass mode charging path is less than 13mΩ for high current operation. The integrated bypass mode allows backward compatibility of 10-V fast charging adapter to charge 2-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 over-voltage and over-current protection, output over-voltage and over-current protection, input under-current and reverse-current protection, input short circuit protection, temperature sensing for the battery and cable, and junction over-temperature 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 BQ25980 is a 98.6% peak efficiency, 8-A battery charging solution using dual-phase switched cap architecture for 2-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 BQ25790, the system enables the fast charging at the very low power loss from pre-charge through constant current (CC), constant voltage (CV), and termination.

The BQ25980 also supports 7-A bypass mode charge (previously called battery switch charge) through internal MOSFETs. The Rdson in bypass mode charging path is less than 13mΩ for high current operation. The integrated bypass mode allows backward compatibility of 10-V fast charging adapter to charge 2-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 over-voltage and over-current protection, output over-voltage and over-current protection, input under-current and reverse-current protection, input short circuit protection, temperature sensing for the battery and cable, and junction over-temperature 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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* Data sheet BQ25980 I2C Controlled, 2-Cell, 8-A Switched Cap Parallel Battery Charger with Integrated Protection and Dual-Input Selector datasheet PDF | HTML 2020年 9月 14日
Analog Design Journal Ultra-Fast USB Battery Charging With Power Dense Switched-Cap Converters PDF | HTML 2021年 11月 18日

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開發板

BQ25980EVM — 具整合式保護功能的 2 芯、8-A 切換式電容並聯電池充電器評估模組

BQ25980 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 BQ25980 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節鋰離子與鋰聚合物電池。BQ25980EVM 可提供完整的快速充電解決方案。典型使用案例是 BQ25790 降壓充電器執行預充電和充電終端,會由一個或兩個 BQ25980 切換式電容充電器執行快速充電,以實現最高效率。
驅動程式或資料庫

BQ25980SW-LINUX — 適用 BQ25980 的 Linux 驅動程式

Linux 驅動程式支援 BQ25980 I2C 控制 2 芯,8 A 切換式電容並聯電池充電器。Linux 驅動程式支援透過 I2C 匯流排進行通訊,並介接電源供應器子系統。

Linux 主線路狀態

適用於 Linux 主線路:是
可透過 git.ti.com 取得:否

Linux 源文件

與此裝置關聯的文件包括:

  1. drivers/power/supply/bq25980_charger.c
  2. drivers/power/supply/bq25980_charger.h

源文件

drivers/power/supply/bq25980_charger.c

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(...)

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DSBGA (YFF) 80 Ultra Librarian

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