- BQ24707ARGRR
- 参考价格:
- 发布者:凌晔科技
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详细信息
品牌:TI德州
封装:QFN
批号:18+
数量*:800000
描述: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
±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
APPLICATIONS
Portable Notebook Computers, UMPCs, Ultra-Thin
Notebooks, and Netbooks
Personal Digital Assistants
Handheld Terminals
Industrial and Medical Equipment
Portable Equipment
Portable Notebook Computers, UMPCs, Ultra-Thin
Notebooks, and Netbooks
Personal Digital Assistants
Handheld Terminals
Industrial and Medical Equipment
Portable Equipment
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
TEL:13544017528
qq: 869030400
E-mail:869030400@qq.com
封装:QFN
批号:18+
数量*:800000
描述: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
±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
APPLICATIONS
Portable Notebook Computers, UMPCs, Ultra-Thin
Notebooks, and Netbooks
Personal Digital Assistants
Handheld Terminals
Industrial and Medical Equipment
Portable Equipment
Portable Notebook Computers, UMPCs, Ultra-Thin
Notebooks, and Netbooks
Personal Digital Assistants
Handheld Terminals
Industrial and Medical Equipment
Portable Equipment
深圳市凌晔科技有限公司
广东省深圳市福田区华强广场C座13L
TEL:13544017528
qq: 869030400
E-mail:869030400@qq.com
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