产品详情

Number of series cells 1, 2, 3, 4, 5 Charge current (max) (A) 16.2 Vin (max) (V) 26, 40 Cell chemistry Li-Ion/Li-Polymer, LiFePO4, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 4.4 Battery charge voltage (max) (V) 23 Absolute max Vin (max) (V) 45 Control topology Switch-Mode Buck-boost Control interface I2C Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 125
Number of series cells 1, 2, 3, 4, 5 Charge current (max) (A) 16.2 Vin (max) (V) 26, 40 Cell chemistry Li-Ion/Li-Polymer, LiFePO4, Lithium Phosphate/LiFePO4 Battery charge voltage (min) (V) 4.4 Battery charge voltage (max) (V) 23 Absolute max Vin (max) (V) 45 Control topology Switch-Mode Buck-boost Control interface I2C Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (REE) 36 20 mm² 4 x 5
  • TI patented quasi dual phase buck-boost narrow voltage DC (NVDC) charger for USB-C Extended Power Range (EPR) interface platform
    • 3.5V to 40V input range to charge 2- to 5-cell battery
    • Charge current up to 16.3A/30A based on 5mΩ/2mΩ sensing resistor
    • Input current limit up to 8.2A/16.4A based on 10mΩ/5mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1, USB-C power delivery and extended power range input current setting
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Integrated Fast Role Swap (FRS) feature following USB-PD specification
    • Seamless transition between quasi dual phase buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
    • Battery supplements system when adapter is fully loaded
  • TI patented dual ramdom spread spectrum (DRSS) for meeting IEC-CISPR 32 EMI specification
  • TI patented Pass Through Mode (PTM) for >99% efficiency and battery fast charging support
  • IMVP8/IMVP9 compliant system features for Intel platform
    • Enhanced Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spike following latest Intel specification
    • Comprehensive PROCHOT profile
    • Two level discharge current limit PROCHOT profile to avoid battery wear out
    • System power monitor (PSYS)
  • Input and battery current monitor through dedicated pins
  • Integrated 16-bit ADC to monitor voltage, current and power
  • Battery MOSFET ideal diode operation in supplement mode
  • Power up USB port from battery (USB OTG)
    • 3V to 5V OTG
    • Output current limit up to 3A based on 10mΩ sensing resistor
  • 600kHz/800kHz programmable switching frequency
  • SMBus host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±2% Charge current regulation
    • ±2% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal regulation and thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 36-Pins 4.0mm × 5.0mm WQFN
  • TI patented quasi dual phase buck-boost narrow voltage DC (NVDC) charger for USB-C Extended Power Range (EPR) interface platform
    • 3.5V to 40V input range to charge 2- to 5-cell battery
    • Charge current up to 16.3A/30A based on 5mΩ/2mΩ sensing resistor
    • Input current limit up to 8.2A/16.4A based on 10mΩ/5mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1, USB-C power delivery and extended power range input current setting
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Integrated Fast Role Swap (FRS) feature following USB-PD specification
    • Seamless transition between quasi dual phase buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
    • Battery supplements system when adapter is fully loaded
  • TI patented dual ramdom spread spectrum (DRSS) for meeting IEC-CISPR 32 EMI specification
  • TI patented Pass Through Mode (PTM) for >99% efficiency and battery fast charging support
  • IMVP8/IMVP9 compliant system features for Intel platform
    • Enhanced Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spike following latest Intel specification
    • Comprehensive PROCHOT profile
    • Two level discharge current limit PROCHOT profile to avoid battery wear out
    • System power monitor (PSYS)
  • Input and battery current monitor through dedicated pins
  • Integrated 16-bit ADC to monitor voltage, current and power
  • Battery MOSFET ideal diode operation in supplement mode
  • Power up USB port from battery (USB OTG)
    • 3V to 5V OTG
    • Output current limit up to 3A based on 10mΩ sensing resistor
  • 600kHz/800kHz programmable switching frequency
  • SMBus host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±2% Charge current regulation
    • ±2% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal regulation and thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 36-Pins 4.0mm × 5.0mm WQFN

The BQ25770G is a synchronous NVDC buck-boost battery charge controller to charge a 2- to 5-cell battery from a wide range of input sources including USB adapter, extended power range (EPR) USB-C Power Delivery (PD) sources, standard power range (SPR) USB-C Power Delivery (PD) sources and traditional adapters. The device offers a low component count, high efficiency solution for space constrained, 2- to 5-cell battery charging applications.

The NVDC configuration allows the system to be regulated based on battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.

During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transits between the buck, boost, and buck-boost operation modes without host control. The TI patented quasi dual phase converter can interleave dual phase under high power buck mode helping thermal distribution and reduce each inductor size. At same time it only needs two boost side switching MOSFETs to save overall system area and cost due to limited power operation under boost mode.

In the absence of an input source, the BQ25770G supports the USB On-the-Go (OTG) function from a 2- to 5-cell battery to generate an adjustable 3V to 5V output on VBUS with 20mV resolution.

When only a battery powers the system and no external load is connected to the USB OTG port, the BQ25770G implements the latest Intel Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During a system peak power spike, the energy stored in the input capacitors supplements the system, to prevent the system voltage from dropping below the minimum system voltage and causing a system crash.

The BQ25770G monitors adapter current, battery current, and system power. The flexibly programmable PROCHOT output goes directly to the CPU for throttling back when needed.

The latest version of the USB-C PD specification includes Fast Role Swap (FRS) to ensure power role swapping occurs in a timely fashion so that the device(s) connected to the dock can avoid experiencing momentary power loss or glitching. This device integrates FRS in compliance with the PD specification.

TI patented switching frequency dithering pattern can significantly reduce EMI noise over the whole conductive EMI frequency range (150kHz to 30MHz). Multiple dithering scale options are available and provide flexibility for different applications. The ditherring feature greatly simplify EMI noise filter design.

The charger operate in the TI patented Pass Through Mode (PTM) to improve efficiency over the full load range. In PTM, input power directly pass through the charger to the system. Switching losses of the MOSFETs and inductor core loss can be saved thus achieving high efficiency operation.

The BQ25770G is available in a 36-pin 4mm × 5mm WQFN package.

The BQ25770G is a synchronous NVDC buck-boost battery charge controller to charge a 2- to 5-cell battery from a wide range of input sources including USB adapter, extended power range (EPR) USB-C Power Delivery (PD) sources, standard power range (SPR) USB-C Power Delivery (PD) sources and traditional adapters. The device offers a low component count, high efficiency solution for space constrained, 2- to 5-cell battery charging applications.

The NVDC configuration allows the system to be regulated based on battery voltage, but not drop below system minimum voltage. The system keeps operating even when the battery is completely discharged or removed. When load power exceeds input source rating, the battery goes into supplement mode and prevents the system from crashing.

During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input source and battery conditions. The charger seamlessly transits between the buck, boost, and buck-boost operation modes without host control. The TI patented quasi dual phase converter can interleave dual phase under high power buck mode helping thermal distribution and reduce each inductor size. At same time it only needs two boost side switching MOSFETs to save overall system area and cost due to limited power operation under boost mode.

In the absence of an input source, the BQ25770G supports the USB On-the-Go (OTG) function from a 2- to 5-cell battery to generate an adjustable 3V to 5V output on VBUS with 20mV resolution.

When only a battery powers the system and no external load is connected to the USB OTG port, the BQ25770G implements the latest Intel Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During a system peak power spike, the energy stored in the input capacitors supplements the system, to prevent the system voltage from dropping below the minimum system voltage and causing a system crash.

The BQ25770G monitors adapter current, battery current, and system power. The flexibly programmable PROCHOT output goes directly to the CPU for throttling back when needed.

The latest version of the USB-C PD specification includes Fast Role Swap (FRS) to ensure power role swapping occurs in a timely fashion so that the device(s) connected to the dock can avoid experiencing momentary power loss or glitching. This device integrates FRS in compliance with the PD specification.

TI patented switching frequency dithering pattern can significantly reduce EMI noise over the whole conductive EMI frequency range (150kHz to 30MHz). Multiple dithering scale options are available and provide flexibility for different applications. The ditherring feature greatly simplify EMI noise filter design.

The charger operate in the TI patented Pass Through Mode (PTM) to improve efficiency over the full load range. In PTM, input power directly pass through the charger to the system. Switching losses of the MOSFETs and inductor core loss can be saved thus achieving high efficiency operation.

The BQ25770G is available in a 36-pin 4mm × 5mm WQFN package.

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类型 标题 下载最新的英语版本 日期
* 数据表 BQ25770G 40V, SMBus, 2- to 5-Cell, Narrow VDC Quasi Dual Phase Buck-Boost Battery Charge Controller for GaN HEMT With System Power Monitor and Processor Hot Monitor 数据表 PDF | HTML 2024年 4月 30日
EVM 用户指南 BQ2577xGEVM 评估模块 PDF | HTML 英语版 PDF | HTML 2024年 5月 6日

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BQ25770GEVM — BQ25770G 评估模块

BQ2577xGEVM 是一款采用 SMBus 或 I2C 控制 NVDC 双相降压/升压充电控制器 BQ2577xG 的功能全面、高功率、高效电池充电器。此 EVM 可驱动 GaN FET 以实现高效率。输入电压范围为 3.5V 至 40V,并具有 2 至 5 节电池的可编程输出以及 0A 至 16.3A 的充电电流范围。此 BQ2577xGEVM 使用户能够参考分步说明来评估 BQ2577xG 的功能和性能。BQ2577xGEVM 还可用作参考设计,并具有完整的原理图、布局和物料清单 (BOM)。
用户指南: PDF | HTML
英语版: PDF | HTML
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  • 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
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