MAX77961B
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MAX77961B

25VIN, 3AOUT to 6AOUT, USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries

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Industry's Highest Efficiency USB Type-C/Power Delivery Buck-Boost Charger with Integrated FETs and Power Path

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Part Models 4
1ku List Price Starting From $3.00
Features
  • 3.5V to 25.4V Input Operating Range, 30VDC Withstand
  • 97% Peak Efficiency for 2S Battery at 9VIN/7.4VOUT/1.5AOUT
  • 97% Peak Efficiency for 3S Battery at 15VIN/12.6VOUT/2AOUT
  • MAX77960B
    • 100mA to 3.15A Programmable Input Current Limit
    • 100mA to 3A Programmable Constant Current Charge
  • MAX77961B
    • 100mA to 6.3A Programmable Input Current Limit
    • 100mA to 6A Programmable Constant Current Charge​
  • 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
  • ​Reverse Buck Mode 5.1V/3A to Support USB OTG
  • JEITA Compliant with NTC Thermistor Monitor
  • I2C or Resistor Programmable
  • 4mm x 4mm, 30-Lead FC2QFN 
Additional Details
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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) accessories. 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 current limit. The devices are highly flexible and programmable through I2C configuration or autonomously through resistor configuration.

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 system processor can later enable charging using I2C commands as appropriate. Alternatively, the ICs can be configured to automatically start charging.

Applications

  • USB Type-C Powered Wide-Input Charging Applications
  • 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
  • Power Tools
  • Drones
  • Battery Backup
  • Wireless Speakers
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file View Data Sheet (Rev.0)
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Part Models 4
1ku List Price Starting From $3.00
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MAX77961B

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UPDATED 08/23/2021
English

MAX77960B-MAX77961B: 25VIN, 3AOUT to 6AOUT, USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-Ion Batteries Data Sheet (Rev.0)

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Documentation

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2022-10-04

04:28

Introduction to MAX77960B MAX77961B 25VIN 3A/6AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S/3S Li-ion Batteries

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Software & Part Ecosystem

Software & Part Ecosystem

Parts Product Life Cycle Description

Switching Battery Chargers1
MAX77962
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23VIN 3.2AOUT USB-C Buck-Boost Charger with Integrated FETs for 2S Li-Ion Batteries

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Standalone USB Type-C and USB Power Delivery Controller

Evaluation Kit

Evaluation Kits 4

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MAX77961BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B

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MAX77961BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B

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Download

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Print
MAX77961BEVKIT06
Evaluation Kit for the MAX77960B/MAX77961B

Features and Benefits

  • Evaluates the MAX77960B/MAX77961B USB Type-C Buck-Boost Chargers with Integrated FETs for 2S/3S Li-Ion Batteries
  • Demonstrates 3.5V to 25.4V Input Operating Range
  • Demonstrates Charging Up to 3A (MAX77960B)/6A (MAX77961B)
  • Demonstrates USB-OTG Functionality
  • Demonstrates JEITA Compliance with On-Board Dummy Thermistors
  • Assembled and Tested
  • I2C Serial Interface
Buy Now View Details

Product Detail

The MAX77960B/MAX77961B evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board (PCB) that evaluates the MAX77960B/MAX77961B, 3A/6A USB Type-C® buck-boost chargers.

The MAX77960B/MAX77961B EV kit includes the IC evaluation board with integrated I2C communication interface and USB micro-B cable. Windows®-based graphical user interface (GUI) software is available for use with the EV kit and can be downloaded here. Windows 7 or newer is required to use with the EV kit GUI software.

 

Applications

  • 2- and 3-Cell Battery-Powered Devices
  • Battery Backup
  • Digital Still, Video, and Action Cameras
  • Drones
  • Handheld Computers and Terminals
  • Handheld Radios
  • Medical Devices, Health and Fitness Monitors
  • Power Tools
  • Smartphones, Tablets, and 2-in-1 Laptops
  • USB Type-C Powered Wide-Input Charging Applications
  • Wireless Speakers

Resources

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ZIP

MAX77961BEVKIT06 ODB Files - Design Files Download

1.35 M

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reference details image

MAX77960BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B

zoom

MAX77960BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B

download icon

Download

 print icon

Print
MAX77960BEVKIT06
Evaluation Kit for the MAX77960B/MAX77961B

Features and Benefits

  • Evaluates the MAX77960B/MAX77961B USB Type-C Buck-Boost Chargers with Integrated FETs for 2S/3S Li-Ion Batteries
  • Demonstrates 3.5V to 25.4V Input Operating Range
  • Demonstrates Charging Up to 3A (MAX77960B)/6A (MAX77961B)
  • Demonstrates USB-OTG Functionality
  • Demonstrates JEITA Compliance with On-Board Dummy Thermistors
  • Assembled and Tested
  • I2C Serial Interface
Buy Now View Details

Product Detail

The MAX77960B/MAX77961B evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board (PCB) that evaluates the MAX77960B/MAX77961B, 3A/6A USB Type-C® buck-boost chargers.

The MAX77960B/MAX77961B EV kit includes the IC evaluation board with integrated I2C communication interface and USB micro-B cable. Windows®-based graphical user interface (GUI) software is available for use with the EV kit and can be downloaded here. Windows 7 or newer is required to use with the EV kit GUI software.

 

Applications

  • 2- and 3-Cell Battery-Powered Devices
  • Battery Backup
  • Digital Still, Video, and Action Cameras
  • Drones
  • Handheld Computers and Terminals
  • Handheld Radios
  • Medical Devices, Health and Fitness Monitors
  • Power Tools
  • Smartphones, Tablets, and 2-in-1 Laptops
  • USB Type-C Powered Wide-Input Charging Applications
  • Wireless Speakers

Resources

pdf icon

ZIP

MAX77960BEVKIT06 ODB Files - Design Files Download

1.35 M

Show More Arrow image
reference details image

MAX77960BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B

zoom

MAX77960BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B

download icon

Download

 print icon

Print
MAX77960BEVKIT12
Evaluation Kit for the MAX77960B/MAX77961B

Features and Benefits

  • Evaluates the MAX77960B/MAX77961B USB Type-C Buck-Boost Chargers with Integrated FETs for 2S/3S Li-Ion Batteries
  • Demonstrates 3.5V to 25.4V Input Operating Range
  • Demonstrates Charging Up to 3A (MAX77960B)/6A (MAX77961B)
  • Demonstrates USB-OTG Functionality
  • Demonstrates JEITA Compliance with On-Board Dummy Thermistors
  • Assembled and Tested
  • I2C Serial Interface
Buy Now View Details

Product Detail

The MAX77960B/MAX77961B evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board (PCB) that evaluates the MAX77960B/MAX77961B, 3A/6A USB Type-C® buck-boost chargers.

The MAX77960B/MAX77961B EV kit includes the IC evaluation board with integrated I2C communication interface and USB micro-B cable. Windows®-based graphical user interface (GUI) software is available for use with the EV kit and can be downloaded here. Windows 7 or newer is required to use with the EV kit GUI software.

Applications

  • 2- and 3-Cell Battery-Powered Devices
  • Battery Backup
  • Digital Still, Video, and Action Cameras
  • Drones
  • Handheld Computers and Terminals
  • Handheld Radios
  • Medical Devices, Health and Fitness Monitors
  • Power Tools
  • Smartphones, Tablets, and 2-in-1 Laptops
  • USB Type-C Powered Wide-Input Charging Applications
  • Wireless Speakers

Resources

pdf icon

ZIP

MAX77960BEVKIT12 ODB Files - Design Files Download

1.35 M

Show More Arrow image
reference details image

MAX77961BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B

zoom

MAX77961BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B

download icon

Download

 print icon

Print
MAX77961BEVKIT12
Evaluation Kit for the MAX77960B/MAX77961B

Features and Benefits

  • Evaluates the MAX77960B/MAX77961B USB Type-C Buck-Boost Chargers with Integrated FETs for 2S/3S Li-Ion Batteries
  • Demonstrates 3.5V to 25.4V Input Operating Range
  • Demonstrates Charging Up to 3A (MAX77960B)/6A (MAX77961B)
  • Demonstrates USB-OTG Functionality
  • Demonstrates JEITA Compliance with On-Board Dummy Thermistors
  • Assembled and Tested
  • I2C Serial Interface
Buy Now View Details

Product Detail

The MAX77960B/MAX77961B evaluation kit (EV kit) is a fully assembled and tested surface-mount printed circuit board (PCB) that evaluates the MAX77960B/MAX77961B, 3A/6A USB Type-C® buck-boost chargers.

The MAX77960B/MAX77961B EV kit includes the IC evaluation board with integrated I2C communication interface and USB micro-B cable. Windows®-based graphical user interface (GUI) software is available for use with the EV kit and can be downloaded here. Windows 7 or newer is required to use with the EV kit GUI software.

 

Applications

  • 2- and 3-Cell Battery-Powered Devices
  • Battery Backup
  • Digital Still, Video, and Action Cameras
  • Drones
  • Handheld Computers and Terminals
  • Handheld Radios
  • Medical Devices, Health and Fitness Monitors
  • Power Tools
  • Smartphones, Tablets, and 2-in-1 Laptops
  • USB Type-C Powered Wide-Input Charging Applications
  • Wireless Speakers

Resources

pdf icon

ZIP

MAX77961BEVKIT12 ODB Files - Design Files Download

1.35 M

Show More Arrow image

Evaluation Kits4

evaluation kit item images

MAX77961BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B
evaluation kit item images

MAX77960BEVKIT06

Evaluation Kit for the MAX77960B/MAX77961B
evaluation kit item images

MAX77960BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B
evaluation kit item images

MAX77961BEVKIT12

Evaluation Kit for the MAX77960B/MAX77961B

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