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MAX77961BEFV12+T

更新时间： 2024-11-07 02:55:47
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
82页 939K
描述
25VIN, 3AOUT to 6AOUT, USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

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MAX77961BEFV12+T 数据手册

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EVALUATION KIT AVAILABLE  
Click here to ask about the production status of specific part numbers.  
MAX77960B/MAX77961B  
25V , 3A  
to 6A , USB-C Buck-Boost  
OUT  
IN  
OUT  
Charger with Integrated FETs for 2S/3S Li-Ion  
Batteries  
General Description  
Benefits and Features  
The MAX77960B/MAX77961B are high-performance  
wide-input 3A (MAX77960B)/6A (MAX77961B) buck-  
boost chargers with Smart Power Selector™ and operate  
as a reverse buck converter without an additional inductor,  
allowing the ICs to power USB on-the-go (OTG) acces-  
sories. The devices integrate low-loss power switches and  
provide high efficiency, low heat, and fast battery charging  
in a small solution size. The reverse buck has true load  
disconnect and is protected by an adjustable output cur-  
rent limit. The devices are highly flexible and programma-  
● 3.5V to 25.4V Input Operating Range, 30V  
DC  
Withstand  
● 97% Peak Efficiency for 2S Battery at  
9V /7.4V  
/1.5A  
IN  
OUT  
OUT  
● 97% Peak Efficiency for 3S Battery at  
15V /12.6V  
/2A  
IN  
OUT  
OUT  
● MAX77960B  
• 100mA to 3.15A Programmable Input Current Limit  
• 100mA to 3A Programmable Constant Current  
Charge  
2
ble through I C configuration or autonomously through re-  
sistor configuration.  
● MAX77961B  
• 100mA to 6.3A Programmable Input Current Limit  
• 100mA to 6A Programmable Constant Current  
Charge  
The battery charger includes the Smart Power Selector to  
accommodate a wide range of battery sizes and system  
loads. The Smart Power Selector allows the system to  
start up smoothly when an input source is available even  
when the battery is deeply discharged (dead battery) or  
missing. For battery safety/authentication reasons, the ICs  
can be configured to keep charging disabled, and allow  
the DC-DC to switch and regulate the SYS voltage. The  
● Remote Differential Voltage Sensing  
● 600kHz or 1.2MHz Switching Frequency Options  
● System Instant On with Smart Power Selector Power  
Path  
● Charge Safety Timer  
● Die Temperature Regulation with Thermal Foldback  
Loop  
● Input Power Management with Adaptive Input Current  
Limit (AICL) and Input Voltage Regulation  
● 10mΩ BATT to SYS Switch, Up to 10A Overcurrent  
Threshold  
2
system processor can later enable charging using I C  
commands as appropriate. Alternatively, the ICs can be  
configured to automatically start charging.  
Applications  
● USB Type-C Powered Wide-Input Charging  
● Reverse Buck Mode 5.1V/3A to Support USB OTG  
Applications  
● JEITA Compliant with NTC Thermistor Monitor  
● I C or Resistor Programmable  
● 4mm x 4mm, 30-Lead FC2QFN  
● 2- and 3-Cell Battery-Powered Devices  
● Smartphones, Tablets, and 2-in-1 Laptops  
● Medical Devices, Health and Fitness Monitors  
● Digital Still, Video, and Action Cameras  
● Handheld Computers and Terminals  
● Handheld Radios  
2
Ordering Information appears at end of data sheet.  
● Power Tools  
● Drones  
● Battery Backup  
● Wireless Speakers  
Smart Power Selector is a trademark of Maxim Integrated Products, Inc.  
19-101123; Rev 0; 6/21  
 
 
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