產品詳細資料

Number of series cells 14 Charge current (max) (A) 20 Vin (max) (V) 60 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, SuperCap Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 60 Absolute max Vin (max) (V) 70 Control topology Switch-Mode Buck-boost Control interface I2C Features IINDPM (Input current limit), Input OVP, Integrated ADC, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 14 Charge current (max) (A) 20 Vin (max) (V) 60 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, SuperCap Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 60 Absolute max Vin (max) (V) 70 Control topology Switch-Mode Buck-boost Control interface I2C Features IINDPM (Input current limit), Input OVP, Integrated ADC, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.2 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RRV) 36 30 mm² 6 x 5
  • Wide input voltage operating range: 4.2V to 60V
  • Synchronous buck-boost DC/DC controller with NFET drivers
    • Adjustable switching frequency from 200kHz to 600kHz
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Selectable PFM operation for light load efficiency improvement (PFM or forced PWM option)
    • Optional gate driver supply input for optimized efficiency
  • Support USB-PD Extended Power Range (EPR) in forward and reverse power direction
    • Adjustable input and output voltage regulation from 3.3V to 60V with 20mV/step
    • Adjustable input and output current regulation (RAC_SNS, ROUT_SNS) from 400mA to 20A with 50mA/step using 5mΩ resistor
  • Bypass mode for highest efficiency with VOUT = VAC
  • Buck-only mode
  • High accuracy
    • ±2% output voltage regulation
    • ±3% output current regulation
    • ±2% input voltage regulation
    • ±3% input current regulation
  • I2C controlled for optimal system performance with resistor-programmable option
    • Hardware adjustable input and output current limits
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • High safety integration
    • Adjustable input overvoltage and undervoltage protection
    • Output overvoltage and overcurrent protection
    • Thermal shutdown
  • Status outputs
    • Adapter present status (PG)
    • Switcher operation status (STAT)
  • Package
    • 36-pin 5mm × 6mm QFN
  • Wide input voltage operating range: 4.2V to 60V
  • Synchronous buck-boost DC/DC controller with NFET drivers
    • Adjustable switching frequency from 200kHz to 600kHz
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Selectable PFM operation for light load efficiency improvement (PFM or forced PWM option)
    • Optional gate driver supply input for optimized efficiency
  • Support USB-PD Extended Power Range (EPR) in forward and reverse power direction
    • Adjustable input and output voltage regulation from 3.3V to 60V with 20mV/step
    • Adjustable input and output current regulation (RAC_SNS, ROUT_SNS) from 400mA to 20A with 50mA/step using 5mΩ resistor
  • Bypass mode for highest efficiency with VOUT = VAC
  • Buck-only mode
  • High accuracy
    • ±2% output voltage regulation
    • ±3% output current regulation
    • ±2% input voltage regulation
    • ±3% input current regulation
  • I2C controlled for optimal system performance with resistor-programmable option
    • Hardware adjustable input and output current limits
  • Integrated 16-bit ADC for voltage, current, and temperature monitoring
  • High safety integration
    • Adjustable input overvoltage and undervoltage protection
    • Output overvoltage and overcurrent protection
    • Thermal shutdown
  • Status outputs
    • Adapter present status (PG)
    • Switcher operation status (STAT)
  • Package
    • 36-pin 5mm × 6mm QFN

BQ25758 is a wide input voltage, bidirectional switched-mode buck-boost controller. The device offers high-efficiency power conversion over a wide voltage range with output CC-CV control. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the output supply and regulates the input terminal voltage with an added constant current loop for protection.

Besides the I2C host-controlled mode, the device also supports programmable hardware limits. Input current, and output current regulation targets can be set with single resistor on the IIN, and IOUT pins, respectively. By default, the device is programmed to provide 5V output, and the target output voltage can be adjusted via the VOUT_REG register bits.

BQ25758 is a wide input voltage, bidirectional switched-mode buck-boost controller. The device offers high-efficiency power conversion over a wide voltage range with output CC-CV control. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the device draws power from the output supply and regulates the input terminal voltage with an added constant current loop for protection.

Besides the I2C host-controlled mode, the device also supports programmable hardware limits. Input current, and output current regulation targets can be set with single resistor on the IIN, and IOUT pins, respectively. By default, the device is programmed to provide 5V output, and the target output voltage can be adjusted via the VOUT_REG register bits.

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類型 標題 日期
* Data sheet BQ25758: I2C Controlled, Bidirectional Buck-Boost Controller with Wide Voltage Range datasheet (Rev. B) PDF | HTML 2024年 3月 20日
Application note How to Compensate for Cable Losses With BQ25758 PDF | HTML 2024年 8月 21日
EVM User's guide BQ25758 Evaluation Module User's Guide (Rev. A) PDF | HTML 2024年 8月 19日

設計與開發

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開發板

BQ25758EVM — BQ25758 評估模組

BQ25758EVM 評估模組 (EVM) 是適用於 BQ25758 IC 的完整評估系統,BQ25758 IC 為降壓升壓控制器,具有 4.2V 至 60V 寬輸入範圍、最高 60V 的寬輸出電壓範圍和雙向功能。BQ25758EVM 的最大輸入與輸出為 55V,最大輸出電流為 10A。

使用指南: PDF | HTML
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應用軟體及架構

TI-CHARGER-GUI — 適於與 USB2ANY 和電池充電搭配使用的 GUI 軟體評估模組

TI-CHARGER-GUI 提供網路型或獨立式圖形使用者介面,協助評估、設計、配置或測試電池充電器產品。該軟體提供暫存器的完整存取權,以及用於傳送及排序指令的簡易介面。
計算工具

BQ25756-DESIGN-CALC BQ25756 design calculator

BQ25756 design calculator is a calculation tool for BQ25756 which is a wide input voltage, switched mode buck-boost Li-Ion, Li-polymer, or LiFePO4 battery charge controller with bidirectional power flow support.
支援產品和硬體

支援產品和硬體

產品
電池充電器 IC
BQ25756 具有 MPPT 之獨立式或 I²C 控制的 70-V 雙向降壓升壓充電控制器 BQ25758 具有 USB PD EPR 和 PPS 支援的 I²C 控制 60-V 雙向降壓升壓控制器 BQ25756E Stand-alone or I²C-controlled bidirectional buck-boost charge controller for up to 7S batteries BQ25856-Q1 車用 I2C 控制 70-V 雙向降壓升壓充電控制器
硬體開發
開發板
BQ25756EVM 適用於 1 至 14 芯雙向降壓升壓電池充電控制器的 BQ25756 評估模組
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RRV) 36 Ultra Librarian

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