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電池充電器 IC

BQ25100A

現行

具有 4.3-V 充電電壓和可編程預先充電功能的獨立單芯、250-mA 線性電池充電器

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BQ25170 現行 適用於單節鋰離子和磷酸鐵鋰電池的 800mA 線性電池充電器 This product is an 800-mA, single cell Li-Ion and LiFePO4 battery linear charger with programmable charge voltage

BQ25100A

現行
產品規格表 立即訂購

產品詳細資料

Number of series cells 1 Charge current (max) (A) 0.25 Vin (max) (V) 6.45 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.3 Battery charge voltage (max) (V) 4.3 Absolute max Vin (max) (V) 30 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.45 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1 Charge current (max) (A) 0.25 Vin (max) (V) 6.45 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.3 Battery charge voltage (max) (V) 4.3 Absolute max Vin (max) (V) 30 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, Input OVP, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 4.45 Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YFP) 6 1.4000000000000001 mm² 1 x 1.4000000000000001
  • Charging
    • 1% Charge Voltage Accuracy
    • 10% Charge Current Accuracy
    • Supports Applications for Very Low
      Charge Currents - 10 mA to 250 mA
    • Supports minimum 1-mA Charge
      Termination Current
    • Ultra Low Battery Output Leakage
      Current - Maximum 75 nA
    • Adjustable Termination and Precharge
      Threshold
    • High voltage Chemistry Support: 4.35 V
      with bq25100H/01H, 4.30 V with bq25100A
  • Protection
    • 30-V Input Rating; with 6.5-V Input
      Overvoltage Protection
    • Input Voltage Dynamic Power Management
    • 125°C Thermal Regulation; 150°C
      Thermal Shutdown Protection
    • OUT Short-Circuit Protection and ISET
      Short Detection
    • Operation over JEITA Range via Battery
      NTC – 1/2 Fast-Charge-Current at
      Cold, 4.06 V (bq25100/01) or 4.2 V
      (bq25100H/01H) at Hot
    • Fixed 10 Hour Safety Timer
  • System
    • Automatic Termination and Timer
      Disable Mode (TTDM) for Absent Battery
      Pack
    • Available in Small 1.60 mm × 0.90 mm
      DSBGA Package
  • Charging
    • 1% Charge Voltage Accuracy
    • 10% Charge Current Accuracy
    • Supports Applications for Very Low
      Charge Currents - 10 mA to 250 mA
    • Supports minimum 1-mA Charge
      Termination Current
    • Ultra Low Battery Output Leakage
      Current - Maximum 75 nA
    • Adjustable Termination and Precharge
      Threshold
    • High voltage Chemistry Support: 4.35 V
      with bq25100H/01H, 4.30 V with bq25100A
  • Protection
    • 30-V Input Rating; with 6.5-V Input
      Overvoltage Protection
    • Input Voltage Dynamic Power Management
    • 125°C Thermal Regulation; 150°C
      Thermal Shutdown Protection
    • OUT Short-Circuit Protection and ISET
      Short Detection
    • Operation over JEITA Range via Battery
      NTC – 1/2 Fast-Charge-Current at
      Cold, 4.06 V (bq25100/01) or 4.2 V
      (bq25100H/01H) at Hot
    • Fixed 10 Hour Safety Timer
  • System
    • Automatic Termination and Timer
      Disable Mode (TTDM) for Absent Battery
      Pack
    • Available in Small 1.60 mm × 0.90 mm
      DSBGA Package

The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq2510x. The fast charge current value is also programmable via an external resistor.

The bq2510x series of devices are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10 hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor on the bq2510x. The fast charge current value is also programmable via an external resistor.
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* Data sheet bq2510x 250-mA Single Cell Li-Ion Battery Chargers, 1-mA Termination, 75-nA Battery Leakage datasheet (Rev. C) PDF | HTML 2014年 11月 18日

設計與開發

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開發板

BQ25100EVM-654 — 適用於單節鋰離子電池供電系統的電池充電解決方案評估模組

The bq25100 evaluation module (EVM) is a complete charger module for evaluating the WCSP packaged 250mA battery charge solution for single-cell, Li-Ion battery-powered systems used in low power portable applications. It offers ultra-small package size and ultra-low battery leakage current which is (...)

使用指南: PDF
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Linear Charger NTC Calculator

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參考設計

TIDA-050007 — 無線耳塞式耳機電池的超低待機電源參考設計

全新的完全無線耳塞式耳機是由電池在其攜帶盒中充電，而這款獨特設計需要小型解決方案尺寸和高效率電源零組件。此外，這市場日益增加的大量需求需要以更經濟的方式提供同等功能。此超低功耗參考設計展示了由 USB 輸入供電的充電盒電池和升壓轉換器。
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00318 — 適用於低功耗穿戴式裝置應用且符合 Qi (WPC) 規範的無線充電器

This reference design is suitable for low power wearable devices including a Qi-compliant wireless receiver (bq51003) and ultra-low current 1-cell Li-ion linear charger (bq25100). It features an ultra-small size (5 x 15 mm2), capable of low-charging currents down to 10 mA and up to 250 mA with (...)
Test report: PDF
電路圖: PDF
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