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BQ24707-高频、高性能 SMBus 充电控制器
BQ24707-电池充电器IC-电池管理产品-电源管理
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TI产品 - BQ24707介绍

BQ24707 - 高频、高性能 SMBus 充电控制器

BQ24707是TI德州仪器公司的一款电池充电器IC产品，BQ24707是高频、高性能 SMBus 充电控制器，本站介绍了BQ24707的封装应用图解、特点和优点、功能等，并给出了与BQ24707相关的TI元器件型号供参考。

BQ24707 - 高频、高性能 SMBus 充电控制器 - 电池充电器IC - 电池管理产品 - 德州仪器

产品特性
  • SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter With Programmable 615 kHz, 750 kHz, and 885 kHz Switching Frequency
  • Real-Time System Control on ILIM Pin to Limit Charge Current
  • Enhanced Safety Features for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit Protection
  • Programmable Input Current, Charge Voltage, Charge Current Limits
    • ±0.5% Charge Voltage Accuracy up to 19.2 V
    • ±3% Charge Current Accuracy up to 8.128 A
    • ±3% Input Current Accuracy up to 8.064 A
    • ±2% 20× Adapter Current or Charge Current Output Accuracy
  • Programmable Adapter Detection and Indicator
  • Independent Comparator With Internal Reference
  • Integrated Soft-Start
  • Integrated Loop Compensation
  • AC Adapter Operating Range 5 V to 24 V
  • 15-µA Off-State Battery Discharge Current
  • 20-pin 3.5 mm × 3.5 mm QFN Package
  • bq24707: ACOK Delay Default 1.3 s
  • bq24707A: ACOK Delay Default 1.2 ms
产品应用
  • Portable Notebook Computers, UMPCs, Ultra-Thin Notebooks, and Netbooks
  • Personal Digital Assistants
  • Handheld Terminals
  • Industrial and Medical Equipment
  • Portable Equipment
产品说明

The bq24707 and bq24707A devices are high-efficiency, synchronous battery chargers, offering low component count for space-constrained, multi-chemistry battery charging applications.

SMBus controlled input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller.

The IC uses the internal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current.

The IC provides an IFAULT output to alarm if any MOSFET fault or input over current occurs. This alarm output allows users to turn off input power selectors when the fault occurs. Meanwhile, an independent comparator with internal reference is available to monitor input current, output current, or output voltage.

The IC charges one-, two-, three-, or four-series Li+ cells, and is available in a 20-pin, 3.5 × 3.5 mm QFN package.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
bq24707VQFN (20)3.50 mm × 3.50 mm
bq24707A
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