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BQ25858B-Q1

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汽车级独立式或 I²C 控制型 65V 双向降压/升压充电控制器

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BQ25858B-Q1

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产品详情

Absolute max Vin (max) (V) 85 Charge current (max) (A) 20 Control topology Switch-Mode Buck, Switch-Mode Buck-boost Rating Automotive Features AEC-Q100 Automotive Qual, Adjustable switching frequency, Bidirectional, IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated ADC, Integrated LDO, SYNC Pin, USB C/PD compatible Control interface I2C Operating temperature range (°C) -40 to 150
Absolute max Vin (max) (V) 85 Charge current (max) (A) 20 Control topology Switch-Mode Buck, Switch-Mode Buck-boost Rating Automotive Features AEC-Q100 Automotive Qual, Adjustable switching frequency, Bidirectional, IC thermal regulation, IINDPM (Input current limit), Input OVP, Integrated ADC, Integrated LDO, SYNC Pin, USB C/PD compatible Control interface I2C Operating temperature range (°C) -40 to 150
VQFN (RRV) 36 30 mm² 6 x 5
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: −40ºC ≤ TA≤ 150ºC
  • Wide input voltage operating range: 4.4V to 65V with 20mV/step
  • Synchronous buck-boost DC/DC controller with NFET drivers
    • Adjustable fSW from 200kHz to 600kHz
    • Switching frequency dithering for EMI noise reduction (DRSS)
    • 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 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/input current regulation
    • ±2% input voltage 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
    • Input power present status (PG)
    • Switcher operation status (STAT)
  • Package
    • 36-pin 5mm × 6mm QFN with wettable flanks
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: −40ºC ≤ TA≤ 150ºC
  • Wide input voltage operating range: 4.4V to 65V with 20mV/step
  • Synchronous buck-boost DC/DC controller with NFET drivers
    • Adjustable fSW from 200kHz to 600kHz
    • Switching frequency dithering for EMI noise reduction (DRSS)
    • 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 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/input current regulation
    • ±2% input voltage 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
    • Input power present status (PG)
    • Switcher operation status (STAT)
  • Package
    • 36-pin 5mm × 6mm QFN with wettable flanks

BQ25858-Q1, BQ25858B-Q1 are automotive grade, wide input voltage, bidirectional switched-mode buck-boost controllers. The devices offer high-efficiency regulation over a wide voltage range with output CC-CV control. The devices integrate all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the devices draw power from the output supply and regulate 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.

BQ25858-Q1, BQ25858B-Q1 are automotive grade, wide input voltage, bidirectional switched-mode buck-boost controllers. The devices offer high-efficiency regulation over a wide voltage range with output CC-CV control. The devices integrate all the loop compensation for the buck-boost converter, thereby providing a high density solution with ease of use. In reverse mode, the devices draw power from the output supply and regulate 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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类型 标题 下载最新的英语版本 日期
* 数据表 BQ25858-Q1/858B-Q1: Automotive, I2C Controlled, Bidirectional Buck-Boost Controllers with Wide Voltage Range 数据表 PDF | HTML 2025年 3月 31日
EVM 用户指南 适用于 BQ25858-Q1 和 BQ25858B-Q1 的评估模块 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2025年 5月 19日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

BQ25858BEVM — BQ25858B-Q1 评估模块

BQ25858 和 BQ25858B 评估模块 (EVM) 是 BQ25858-Q1 和 BQ25858B-Q1 IC 的完整评估系统。这些 EVM 的最大输入和输出电压为 55V，最大输出电流为 10A。

BQ25858-Q1 和 BQ25858B-Q1 IC 是宽电压、双向开关模式降压/升压控制器。这些该器件可通过输出 CC-CV 控制在宽电压范围内实现高效的电源转换。这些器件具有 4.2V 至 60V 的宽输入电压范围和高达 60V 的宽输出电压范围。

BQ25858EVM 和 BQ25858BEVM 使用相同的硬件。这两款电路板之间的唯一区别是 I2C 地址。BQ25858-Q1 的 I (...)

用户指南: PDF | HTML
英语版 (Rev.A): PDF | HTML
TI.com 上无现货
评估板

BQ25858EVM — 适用于汽车类和 I2C 控制型 70V 双向降压/升压转换器的评估模块

BQ25858 评估模块 (EVM) 是适用于 BQ25858-Q1 IC 的完整评估系统。BQ25858EVM 的最大输入和输出电压为 55V，最大输出电流为 10A。

BQ25858-Q1 IC 是一款宽电压、双向开关模式同步降压/升压控制器。该器件可通过输出 CC-CV 控制在宽电压范围内实现高效的电源转换。该 IC 具有 4.2V 至 60V 的宽输入电压范围和高达 60V 的宽输出电压范围。

用户指南: PDF | HTML
英语版 (Rev.A): PDF | HTML
TI.com 上无现货
封装 引脚 CAD 符号、封装和 3D 模型
VQFN (RRV) 36 Ultra Librarian
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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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