產(chǎn)品詳情

Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry Lead Acid Charge current (max) (A) 20 Features Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Integrated LDO, Power Path, SYNC Pin, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.2 Vin (max) (V) 70 Absolute max Vin (max) (V) 85 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 Cell chemistry Lead Acid Charge current (max) (A) 20 Features Adjustable switching frequency, BAT temp thermistor monitoring (JEITA profile), Bidirectional, IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Integrated LDO, Power Path, SYNC Pin, USB C/PD compatible, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.2 Vin (max) (V) 70 Absolute max Vin (max) (V) 85 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 70 Control interface I2C TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125
VQFN (RRV) 36 30 mm2 6 x 5
  • Wide input voltage operating range: 4.4V to 70V
  • Wide battery voltage operating range: up-to 70V
    • 6V up-to 48V lead-acid charging profile with bulk, absorb and float voltage charging phases
    • Charge voltage temperature compensation
  • Synchronous buck charge controller with NFET drivers
    • Adjustable switching frequency from 200kHz to 600kHz
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Optional gate driver supply input for optimized efficiency
  • Bidirectional converter operation (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
    • Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
    • Adjustable input current regulation (RAC_SNS) from 400mA to 20A with 50mA/step using 2mΩ resistor
  • Direct power path management for highest efficiency to power system
    • System power selection from adapter or battery
    • Dynamic power management
    • All N-channel FET drivers
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge current 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
  • Low battery quiescent current
  • High safety integration
    • Adjustable input overvoltage and undervoltage protection
    • Battery Overvoltage and overcurrent protection
    • Charging safety timer in CV Mode
    • Thermal shutdown
  • Status outputs
    • Adapter present status (PG)
    • Charger Operation status
  • Package
    • 36-pin 6mm × 5mm QFN
  • Wide input voltage operating range: 4.4V to 70V
  • Wide battery voltage operating range: up-to 70V
    • 6V up-to 48V lead-acid charging profile with bulk, absorb and float voltage charging phases
    • Charge voltage temperature compensation
  • Synchronous buck charge controller with NFET drivers
    • Adjustable switching frequency from 200kHz to 600kHz
    • Optional synchronization to external clock
    • Integrated loop compensation with soft start
    • Optional gate driver supply input for optimized efficiency
  • Bidirectional converter operation (Reverse Mode) supporting USB-PD Extended Power Range (EPR)
    • Adjustable input voltage (VAC) regulation from 3.3V to 65V with 20mV/step
    • Adjustable input current regulation (RAC_SNS) from 400mA to 20A with 50mA/step using 2mΩ resistor
  • Direct power path management for highest efficiency to power system
    • System power selection from adapter or battery
    • Dynamic power management
    • All N-channel FET drivers
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±3% charge current 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
  • Low battery quiescent current
  • High safety integration
    • Adjustable input overvoltage and undervoltage protection
    • Battery Overvoltage and overcurrent protection
    • Charging safety timer in CV Mode
    • Thermal shutdown
  • Status outputs
    • Adapter present status (PG)
    • Charger Operation status
  • Package
    • 36-pin 6mm × 5mm QFN

The BQ25751 is a wide input voltage, switched-mode buck-boost battery charge controller with direct power path control. The device offers high-efficiency battery charging over a wide voltage range with bulk, float and absorption charging for lead-acid batteries. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use.

Besides the I2C host-controlled charging mode, the device also supports standalone charging mode via resistor programmable limits. Input current, charge current and charge voltage regulation targets can be set via the ILIM_HIZ, ICHG and FB pins, respectively.

The BQ25751 is a wide input voltage, switched-mode buck-boost battery charge controller with direct power path control. The device offers high-efficiency battery charging over a wide voltage range with bulk, float and absorption charging for lead-acid batteries. The device integrates all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use.

Besides the I2C host-controlled charging mode, the device also supports standalone charging mode via resistor programmable limits. Input current, charge current and charge voltage regulation targets can be set via the ILIM_HIZ, ICHG and FB pins, respectively.
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類型 標題 下載最新的英語版本 日期
* 數(shù)據(jù)表 BQ25751: Standalone/I2C Controlled, 70V Bidirectional Buck-Boost Lead Acid Battery Charge Controller with Direct Power Path Control 數(shù)據(jù)表 PDF | HTML 2024年 12月 8日
應用手冊 如何在 BQ2575X 上實現(xiàn)外部 P&O 功能 PDF | HTML 英語版 PDF | HTML 2025年 7月 14日

設計和開發(fā)

如需其他信息或資源，請點擊以下任一標題進入詳情頁面查看（如有）。

評估板

BQ25751EVM — BQ25751 評估模塊

BQ25751EVM 評估模塊 (EVM) 是 BQ25751 IC 的完整評估系統(tǒng)。BQ25756E IC 是一款降壓/升壓電池充電控制器，具有 4.4V 至 70V 的寬輸入電壓范圍、高達 70V 的寬輸出電壓范圍以及雙向功能。BQ25751EVM 的最大輸入和輸出電壓為 55V，最大充電電流為 10A。
用戶指南: PDF | HTML
英語版: PDF | HTML
TI.com 上無現(xiàn)貨
驅(qū)動程序或庫

BQ25751-FS — BQ25751 functional safety FIT rate and pin FMA

BQ25751 functional safety FIT rate and pin FMA
支持的產(chǎn)品和硬件

支持的產(chǎn)品和硬件

產(chǎn)品
電池充電器 IC
  • BQ25751 — 具有電源路徑的獨立或 I2C 控制型 70V 降壓/升壓鉛酸電池充電控制器
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.
支持的產(chǎn)品和硬件

支持的產(chǎn)品和硬件

產(chǎn)品
電池充電器 IC
  • BQ25756 — 具有 MPPT 功能的獨立式或 I2C 控制型 70V 雙向降壓/升壓充電控制器
  • BQ25758 — 具有 USB PD EPR 和 PPS 支持的 I2C 控制型 60V 雙向降壓/升壓控制器
  • BQ25756E — 適用于最多 7 串電池的獨立式或 I2C 控制型雙向降壓/升壓充電控制器
  • BQ25856-Q1 — 汽車級 I2C 控制型 70V 雙向降壓/升壓充電控制器
  • BQ25758A — 具有 USB PD EPR 和 PPS 支持的 I2C 控制型 60V 雙向降壓/升壓控制器
  • BQ25750 — 具有電源路徑的獨立式或 I2C 控制型 70V 雙向降壓/升壓充電控制器
  • BQ25858-Q1 — 汽車級獨立式或 I2C 控制型 70V 雙向降壓/升壓充電控制器
  • BQ25858B-Q1 — 汽車級獨立式或 I2C 控制型 70V 雙向降壓/升壓充電控制器
  • BQ25751 — 具有電源路徑的獨立或 I2C 控制型 70V 降壓/升壓鉛酸電池充電控制器
  • BQ25820 — 具有電源路徑的獨立式或 I2C 控制型 70V 雙向降壓充電控制器
  • BQ25758S — 具有 USB PD EPR 和 PPS 支持的 I2C 控制型 32V 雙向降壓/升壓控制器
  • BQ25822 — 具有電源路徑和自動備份模式的 70V 雙向降壓充電控制器
硬件開發(fā)
評估板
  • BQ25756EVM — BQ25756 1-14 節(jié)電池、雙向降壓/升壓電池充電控制器評估模塊
封裝 引腳 CAD 符號、封裝和 3D 模型
VQFN (RRV) 36 Ultra Librarian

訂購和質(zhì)量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測
包含信息：
  • 制造廠地點
  • 封裝廠地點

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