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具有 dT/dt 终端的开关模式多化合物电池充电器

BQ2000T 处于停产状态
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BQ25172 正在供货 采用 QFN 封装的 0.8A、1 至 6 节镍氢电池独立线性充电器 Smaller solution size and more flexibility

产品详情

Number of series cells 1, 2, 3, 4 Charge current (max) (A) 2 Vin (max) (V) 6 Cell chemistry Li-Ion/Li-Polymer, NiCd, NiMH Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 6 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -20 to 70
Number of series cells 1, 2, 3, 4 Charge current (max) (A) 2 Vin (max) (V) 6 Cell chemistry Li-Ion/Li-Polymer, NiCd, NiMH Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 6 Absolute max Vin (max) (V) 7 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4 Rating Catalog Operating temperature range (°C) -20 to 70
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
  • High-Frequency Switching Controller for Efficient and Simple Charger Design
  • Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
  • Fast-Charge Termination by ΔT/Δt for Nickel Chemistries, Minimum Current for Li-Ion Chemistries, Maximum Temperature, and Maximum Charge Time
  • Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
  • Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
  • Built-in Battery Removal and Insertion Detection
  • Sleep Mode for Low Power Consumption
  • APPLICATIONS
    • Multi-Chemistry Charger
    • Nickel Charger
    • High-Power, Multi-Cell Charger

  • Safe Management of Fast Charge for NiCd, NiMH, or Li-Ion Battery Packs
  • High-Frequency Switching Controller for Efficient and Simple Charger Design
  • Pre-Charge Qualification for Detecting Shorted, Damaged, or Overheated Cells
  • Fast-Charge Termination by ΔT/Δt for Nickel Chemistries, Minimum Current for Li-Ion Chemistries, Maximum Temperature, and Maximum Charge Time
  • Selectable Top-Off Mode for Achieving Maximum Capacity in NiMH Batteries
  • Programmable Trickle-Charge Mode for Reviving Deeply Discharged Batteries and for Postcharge Maintenance
  • Built-in Battery Removal and Insertion Detection
  • Sleep Mode for Low Power Consumption
  • APPLICATIONS
    • Multi-Chemistry Charger
    • Nickel Charger
    • High-Power, Multi-Cell Charger

The bq2000T is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000T chooses the proper battery chemistry (either nickel or lithium) and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable, undercharged, or overcharged conditions, and allows accurate and safe termination of fast charge.

Depending on the chemistry, the bq2000T provides a number of charge termination criteria:

  • Rate of temperature rise (ΔT/Δt) (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time

For safety, the bq2000T inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000T uses trickle-charge to condition the battery. For NiMH batteries, the bq2000T provides an optional top-off charge to maximize the battery capacity.

The integrated high-speed comparator allows the bq2000T to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

The bq2000T is a programmable, monolithic IC for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. The bq2000T chooses the proper battery chemistry (either nickel or lithium) and proceeds with the optimal charging and termination algorithms. This process eliminates undesirable, undercharged, or overcharged conditions, and allows accurate and safe termination of fast charge.

Depending on the chemistry, the bq2000T provides a number of charge termination criteria:

  • Rate of temperature rise (ΔT/Δt) (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time

For safety, the bq2000T inhibits fast charge until the battery voltage and temperature are within user-defined limits. If the battery voltage is below the low-voltage threshold, the bq2000T uses trickle-charge to condition the battery. For NiMH batteries, the bq2000T provides an optional top-off charge to maximize the battery capacity.

The integrated high-speed comparator allows the bq2000T to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

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类型 标题 下载最新的英语版本 日期
* 数据表 Programmable Multi-Chemistry Fast-Charge Management IC* 数据表 (Rev. D) 2010年 1月 14日
应用手册 U-504 Using the bq2000/T to Control Fast Charge (Rev. B) 2004年 12月 2日

设计和开发

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评估板

BQ2000EVM — 用于电池充电管理 IC 的评估模块

The BQ2000EVM provides a convenient method for evaluating the performance of a charge management solution for portable applications using either the bq2000 or bq2000T. A complete and tested charger is presented. The charger is designed to deliver up to 1.0 A of continuous output current. The (...)

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评估模块 (EVM) 用 GUI

SLVC024 bq24715 EVM GUI Package

支持的产品和硬件

支持的产品和硬件

产品
电池充电器 IC
BQ2000 具有峰值电压检测终端的开关模式多化合物电池充电器 BQ2000T 具有 dT/dt 终端的开关模式多化合物电池充电器 BQ2002 具有负 dV、PVT 和 Top-Off 时间设置 1 的镍镉电池/镍氢电池充电控制器 BQ2002C 具有负 dV、PVT 的镍镉电池/镍氢电池充电控制器 BQ2002D 具有 dT/dt 终止功能的镍镉电池/镍氢电池充电控制器 BQ2002E 具有负 dV、PVT 和 tMTO 设置 1 的镍镉电池/镍氢电池充电控制器 BQ2002F 具有负 dV、PVT 和 Top-Off 时间设置 2 的镍镉电池/镍氢电池充电控制器 BQ2002G 具有负 dV、PVT 和 tMTO 设置 2 的镍镉电池/镍氢电池充电控制器 BQ2002T 具有 dT/dt 终止功能和低温故障指示功能的镍镉电池/镍氢电池充电控制器 BQ2031 具有用户可选充电算法的开关模式铅酸电池充电器 BQ2057C 具有 AutoCompTM 的 4.2V 低压降线性 1 节锂离子电池充电控制器 BQ24010 采用 QFN-11 封装、具有交流存在指示和温度感应功能的单节 1A 线性锂离子电池充电器 BQ24012 采用 QFN-12 封装、具有 FET、交流存在指示和充电使能端的单节 1A 线性锂离子电池充电器 BQ24013 采用 QFN-11 封装、具有充电使能和充电终止使能功能的单节 1A 线性锂离子电池充电器 BQ24200 采用 MSOP-8 封装、具有温度感应功能、适用于限流应用的 500mA、4.2V 锂离子电池充电器 BQ24201 采用 MSOP-8 封装、具有温度感应功能、适用于限流应用的 500mA、4.1V 锂离子电池充电器 BQ24202 采用 MSOP-8 封装、显示充电状态、适用于限流应用的 500mA、4.2V 锂离子电池充电器 BQ24203 采用 MSOP-8 封装、显示充电状态、适用于限流应用的 500mA、4.1V 锂离子电池充电器 BQ24205 采用 MSOP-8 封装、适用于限流应用的 500mA、4.1V 锂离子电池充电器 BQ24715 具有 N 沟道 MOSFET 选择器的 SMBus 2 至 3 节 NVDC 降压电池充电控制器
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TEMPSENSE-SW 温度传感设计软件
支持软件

TEMPSENSE-SW — 温度传感设计软件

The TempSense Designer software allows the user to easily design temperature sensing circuits for many of the Texas Instruments battery charger devices. A full listing of the supported devices is included under the "Support" menu in the program. The user can use the thermisters included in the (...)
封装 引脚 下载
PDIP (P) 8 查看选项
SOIC (D) 8 查看选项
TSSOP (PW) 8 查看选项

订购和质量

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

支持和培训

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