返回页首

产品详细信息

参数

Number of series cells 1 Charge current (Max) (A) 3 Operating Vin (Max) (V) 13.5 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (Min) (V) 4.1 Battery charge voltage (Max) (V) 4.35 Absolute Vin (safety rating) (Max) ((V)) 22 Control topology Switch-Mode Buck Control interface Standalone Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Operating Vin (Min) (V) 3.9 Rating Catalog open-in-new 查找其它 电池充电器IC

封装|引脚|尺寸

WQFN (RTW) 24 16 mm² 4 x 4 open-in-new 查找其它 电池充电器IC

特性

  • High-efficiency, 1.5-MHz, synchronous switch-mode buck charger
    • 92% charge efficiency at 2-A from 5-V input
    • ±0.5% charge voltage regulation
    • Adjustable charge voltage from VSET pin supports 4.1-V, 4.2-V, and 4.35-V with ±0.4% regulation accuracy
    • ±6% charge current regulation
    • ±7.5% input current regulation
    • Supports JEITA (BQ25616J) or Hot/Cold (BQ25616) temperature sensing profile
    • 20-hr charging safety timer
  • Support USB On-The-Go (OTG)
    • 5-V boost converter with up to 1.2-A output
    • 92% boost efficiency at 1-A output
    • Accurate constant current (CC) limit
    • Soft-start up to 500-µF capacitive load
    • PFM mode for light load operation
  • Single input supporting USB input, high-voltage adapter, or wireless power
    • Support 4-V to 13.5-V input voltage range with 22-V absolute max input rating
    • 130-ns fast turn-off with optional external OVPFET standing input voltage up to 30 V
    • Programmable input current limit (IINDPM) with ILIM pin
    • VINDPM threshold automatically tracks battery voltage for maximum power
    • Auto detect USB SDP, CDP, DCP and non-standard adaptors
  • Narrow VDC (NVDC) power path management
    • System instant-on with no battery or deeply discharged battery
  • Low RDSON 19.5-mΩ BATFET to minimize charging loss and extend battery run time
  • 9.5-µA low battery leakage current with system standby
  • High integration includes all MOSFETs, current sensing and loop compensation

All trademarks are the property of their respective owners.

open-in-new 查找其它 电池充电器IC

描述

The BQ25616/616J is a highly integrated 3-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer batteries. The solution is highly integrated with input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. The low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery run time during discharging phase.

The BQ25616/616J is a highly integrated 3-A switch-mode battery charge management and system Power Path management device for Li-ion and Li-polymer batteries. It features fast charging with high input voltage support for a wide range of applications including speakers, industrial, and medical portable devices. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time, and extends battery run time during discharging phase. Its input voltage and current regulation deliver maximum charging power to the battery.

The solution is highly integrated with input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery. It also integrates the bootstrap diode for the high-side gate drive for simplified system design. The hardware setting and status report provides easy configuration to set up the charging solution.

The device supports a wide range of input sources, including standard USB host port, USB charging port, USB compliant high voltage adapter and wireless power. It is compliant with USB 2.0 and USB 3.0 power spec with input current and voltage regulation. The device sets default input current limit based on the built-in USB detection through D+/D- pins. When the device built-in USB interface identifies the input adaptor is unknown, the device’s input current limit is determined by the ILIM pin setting resistor value.

The device integrates the buck charger and boost regulator into one solution with single inductor. It meets USB On-The-Go (OTG) operation power rating specification by supplying 5-V with constant current limit up to 1.2-A.

The Power Path management regulates the system slightly above battery voltage but does not drop below 3.5-V minimum system voltage with adapter applied. With this feature, the system maintains operation even when the battery is completely depleted or removed. When the input current limit or voltage limit is reached, the Power Path management automatically reduces the charge current. As the system load continues to increase, the battery starts to discharge the battery until the system power requirement is met. This supplement mode prevents overloading the input source.

The device initiates and completes a charging cycle without software control. It senses the battery voltage and charges the battery in three phases: pre-conditioning, constant current and constant voltage. At the end of the charging cycle, the charger automatically terminates when the charge current is below a preset limit and the battery voltage is higher than the recharge threshold. If the fully charged battery falls below the recharge threshold, the charger automatically starts another charging cycle.

The charger provides various safety features for battery charging and system operations, including battery negative temperature coefficient thermistor monitoring, charging safety timer and overvoltage and over-current protections. Thermal regulation reduces charge current when the junction temperature exceeds 110°C. The STAT output reports the charging status and any fault conditions.

open-in-new 查找其它 电池充电器IC
下载

技术文档

= 特色
未找到结果。请清除搜索,并重试。 查看所有 5
类型 标题 下载最新的英文版本 发布
* 数据表 BQ25616/616J Standalone 1-Cell 3.0-A Buck Battery Charger with Power Path and 1.2-A Boost Operation 数据表 2020年 1月 13日
用户指南 BQ25616, BQ25616J (BMS026) Evaluation Module 2020年 3月 30日
技术文章 When to use rechargeable batteries in small battery applications 2019年 10月 1日
技术文章 Should I use a linear charger or a switching charger? 2015年 10月 30日
技术文章 Summertime and the livin' is easy 2014年 6月 20日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$99.00
说明
BQ25616EVM 评估模块 (EVM) 是一款组装完备且经过测试的电路,用于评估 BQ25616 器件。BQ25616 是一款独立的 3A 单节电池充电器,针对低功耗便携式设计进行了优化。它还包括 USB BC1.2 输入电流限制检测和 OTG 反向同步升压操作。独立控制包括输入电流限制、充电电流和充电电压调节。 
特性
  • 支持 3.9V 至 13.5V 输入电压范围,绝对最大输入电压 (VBUS) 额定值为 22V
  • 在 2A 电流(5V 输入)下具有 92% 的充电效率,在 1A 输出电流下具有 92% 的升压效率
  • OTG 模式下输出短路保护及高达 500uF 容性负载的软启动
  • 在系统待机电压下具有 10uA 的低电池泄漏电流
  • 130nS 可选外部 OVPFET 快速关闭,可承受高达 30V 的输入电压
  • USB BC1.2 以及非标准适配器检测
评估板 下载
document-generic 用户指南
$99.00
说明
BQ25616JEVM 评估模块 (EVM) 旨在用于评估 BQ25616J 器件,此器件是一款独立的 3A 单节电池充电器,针对低功耗便携式设计进行了优化。BQ25616JEVM 包含 USB BC1.2 输入电流限制检测和 OTG 反向同步升压功能。独立控制包括输入电流限制、充电电流和充电电压调节,并且具有符合 JEITA 标准的电池温度充电曲线。 

CAD/CAE 符号

封装 引脚 下载
WQFN (RTW) 24 了解详情

订购与质量

支持与培训

可获得 TI E2E™ 论坛的工程师技术支持

所有内容均由 TI 和社区网友按“原样”提供,并不构成 TI 规范。参阅使用条款

如果您对质量、包装或订购 TI 产品有疑问,请参阅 TI 支持