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電池管理 IC
電池充電器 IC

BQ2000T

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具有 dT/dt 終端的切換模式多化合物電池充電器

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產品規格表

BQ2000T

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet Programmable Multi-Chemistry Fast-Charge Management IC* datasheet (Rev. D) 2010年 1月 14日
Application note U-504 Using the bq2000/T to Control Fast Charge (Rev. B) 2004年 12月 2日

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BQ2000EVM — 用於電池充電管理 IC 的評估模組

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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SLVC024 — bq24715 EVM GUI Package

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產品
電池充電器 IC
BQ2000 — 具有峰值電壓偵測終端器的切換式多化合物電池充電器 BQ2000T — 具有 dT/dt 終端的切換模式多化合物電池充電器 BQ2002 — 具有負 dV、PVT 和加滿時間設置 1 的鎳鎘/鎳氫電池充電控制器 BQ2002C — 具有負 dV、PVT 的鎳鎘/鎳氫電池充電控制器 BQ2002D — 具有 dT/dt 終端的切換模式鎳鎘/鎳氫電池控制器 BQ2002E — 具有負 dV、PVT 和 tMTO setup1 的鎳鎘/鎳氫電池充電控制器 BQ2002F — 具有負 dV、PVT 和加滿時間設置 2 的鎳鎘/鎳氫電池充電控制器 BQ2002G — 具有負 dV、PVT 和 tMTO 設定 2 的鎳鎘/鎳氫電池充電控制器 BQ2002T — 具有 dT/dt 終端和低溫故障的鎳鎘/鎳氫電池充電控制器 BQ2031 — 具有用戶可選充電演算法的切換模式鉛酸電池充電器 BQ2057C — 具有 AutoCompTM 4.2V 的低壓差線性 1 芯鋰離子電池充電控制器 BQ24010 — 採用 QFN-11 封裝，具有交流電和溫度感測的 1 芯、1A 線性鋰離子電池充電器 BQ24012 — 採用 QFN-12，具有 FET、交流電出現和充電賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24013 — 採用 QFN-11 封裝，具有充電賦能、充電終止賦能的 1 芯 1-A 線性鋰離子電池充電器 BQ24200 — 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.2-V 鋰離子充電器，適用於電流限制應用 BQ24201 — 採用 MSOP-8 封裝且具溫度感測功能的 500-mA、4.1-V 鋰離子充電器，適用於電流限制應用 BQ24202 — 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.2-V 鋰離子充電器 BQ24203 — 採用 MSOP-8 封裝、顯示充電狀態、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24205 — 採用 MSOP-8 封裝、適用於電流限制應用的 500-mA、4.1-V 鋰離子充電器 BQ24715 — 具 N 通道功率 MOSFET 選擇器的 SMBus 2-3 芯 NVDC 降壓電池充電器控制器
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TEMPSENSE-SW — 溫度感測設計工具軟體
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TEMPSENSE-SW — 溫度感測設計工具軟體

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 (...)
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