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BQ25172 現行 採用 QFN 封裝的 0.8-A、單芯至六芯 NiMH 獨立線性充電器 Smaller solution size and more flexibility

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 Peak Voltage (PVD) 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 Peak Voltage (PVD) 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 bq2000 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 bq2000 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 bq2000 provides a number of charge termination criteria:

  • Peak voltage, PVD (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time

For safety, the bq2000 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 bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.

The integrated high-speed comparator allows the bq2000 to be the basis for a complete, high-efficiency battery charger circuit for both nickel-based and lithium-based chemistries.

The bq2000 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 bq2000 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 bq2000 provides a number of charge termination criteria:

  • Peak voltage, PVD (for NiCd and NiMH)
  • Minimum charge current (for Li-Ion)
  • Maximum temperature
  • Maximum charge time

For safety, the bq2000 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 bq2000 uses trickle-charge to condition the battery. For NiMH batteries, the bq2000 provides an optional top-off charge to maximize the battery capacity.

The integrated high-speed comparator allows the bq2000 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 MultiChemistry Fast-Charge Management IC datasheet (Rev. D) 2009年 12月 7日
Product overview Battery Management Solutions for Point of Sale Systems 2014年 8月 18日
EVM User's guide BQ2000EVM 2007年 2月 13日
Application note U-504 Using the bq2000/T to Control Fast Charge (Rev. B) 2004年 12月 2日
User guide DV2000S1 Multi-Chemistry Switching Charger Development System User's Guide (Rev. A) 2000年 5月 31日
Application note High Efficiency Dual Chemistry Charger Using the bq2000 1999年 9月 5日

設計與開發

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開發板

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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開發模組 (EVM) 的 GUI

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
參考設計

TIDA-00026 — 可編程、多化學物電池快速充電管理參考設計

This reference design is a programmable, monolithic IC solution for fast-charge management of nickel cadmium (NiCd), nickel metal-hydride (NiMH), or lithium-ion (Li-Ion) batteries in single- or multi-chemistry applications. It chooses the proper battery chemistry (either nickel or lithium) and (...)
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
PDIP (P) 8 Ultra Librarian
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian

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  • 進行中持續性的可靠性監測
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