MAX77650

PRODUCTION

Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+

Highly-Integrated Battery Charging and Power Solution for Low-Power, Size-Constrained Applications

Data Sheet (Rev. 7) Product Selection Table
Part Models
8
1ku List Price
Starting From $2.61
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Part Details

  • Highly Integrated
    • Smart Power Selector™ Li+/Li-Poly Charger
    • 3 Output, Single-Inductor Multiple-Output (SIMO) Buck-Boost Regulator
    • 150mA LDO
    • 3-Channel Current Sink Driver
    • Analog MUX Output for Power Monitoring
  • Low Power
    • 0.3µA Shutdown Current
    • 5.6µA Operating Current (3 SIMO Channels + LDO)
  • Charger Optimized for Small Battery Size
    • Programmable Fast-Charge Current from 7.5mA to 300mA
    • Programmable Battery Regulation Voltage from 3.6V to 4.6V
    • Programmable Termination Current from 0.375mA to 45mA
    • JEITA Battery Temperature Monitors Adjust Charge Current and Battery Regulation Voltage for Safe Charging
  • Flexible and Configurable
    • I2C Compatible Interface and GPIO
    • Factory OTP Options Available
  • Small Size
    • 2.75mm × 2.15mm × 0.7mm WLP Package
    • 30-Bump, 0.4mm-Pitch WLP, 6x5 Array
    • Small Total Solution Size (19.2mm2)
MAX77650
Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+
Highly-integrated battery charging and power solution for low power, size constrained applications | Simplified Block Diagram
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 2

Technical Articles 4

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Software Resources

Device Drivers 1

Hardware Ecosystem

Parts Product Life Cycle Description
Battery Fuel Gauge and Coulomb Counter 1
MAX17055
PRODUCTION 7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ
PMIC (DC/DC, PowerPath, and Battery Charger) 1
MAX77651
PRODUCTION Ultra-Low Power PMIC with 3-Output SIMO and Power Path Charger for Small Li+
USB Power Manager (PowerPath, Battery Charger) 1
MAX77734
RECOMMENDED FOR NEW DESIGNS Ultra-Low Power Tiny PMIC with Power Path Charger for Small Li+ and 150mA LDO
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Tools & Simulations

Software Development 2

Evaluation Kits

eval board
schematic 1
MAX77651EVKIT

Evaluation Kit for the MAX77650/MAX77651

Buy Now View Details

Features and Benefits

  • Easy to Use
  • GUI Drives I2C Interface
  • On-Board Ammeter
  • On-Board Thermistor
  • On-Key Options
  • RGB LED Cluster
  • Assembled and Fully Tested
  • Emulates System Loading
  • On-Board Electronic Loads
  • Electronic Loads have steady-state, transient, and random modes
  • Demonstrates End-to-End Analog Multiplexer Implementation
  • On-Board ADC
  • Evaluates Both Push-Button and Slider-Switch On-Key Options

Product Details

The MAX77650/MAX77651 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77650/MAX77651. The EV kit allows for easy evaluation of the various MAX77650/MAX77651 features, including the SIMO buck-boost regulator, linear regulator, analog multiplexer, smart battery charger, on/off controller, and I2C interface.

The MAX77650 and MAX77651 EV kits are identical aside from the device (U1), silkscreen, and two resistive dividers at the SIMO outputs (see the MAX77650/MAX77651 EV Kit Differences section). The MAX77650/MAX77651 devices themselves have different output voltage ranges for the SIMO buck-boost regulator. Consult the device data sheet for more information.

Windows®-based software provides a user-friendly graphical interface as well as a detailed register-based interface to exercise the features of the MAX77650/MAX77651.

Applications

  • Bluetooth Headphones/Hearables
  • Fitness, Health, and Activity Monitors
  • Internet of Things (IoT)
  • Portable Devices

eval board
schematic 2
MAX32620FTHR

Evaluation Kit for the MAX32620/MAX77650/MAX17055

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Features and Benefits

  • Convenient Development Platform
    • 0.9in x 2.0in DIP Form Factor
      • Breadboard Compatible
      • Feather Wing Compatible
    • Pmod-Compatible Sockets
      • Supports SPI, UART, I2C, and GPIO
      • Accessible from Both Sides of Board
    • Integrated Battery Management
      • Single-Cell Li+ Charger
      • Fuel Gauge
    • User Interface Peripherals
      • Two RGB LEDs
      • Two Pushbuttons
  • MAX32620 Microcontroller Features
    • 96MHz Arm Cortex-M4 Microcontroller with FPU
    • 2048KB Flash
    • 256KB SRAM
    • Full-Speed USB
    • SPI, I2C, UART, and 1-Wire
    • 4-Channel 10-Bit ADC
    • 49 Dual Voltage GPIO
    • 3.9mm x 4.1mm, 81-Bump WLP
  • MAX77650 Ultra-Low Power PMIC Features
    • Smart Power Selector Charger
      • Supports Li+/Li-Poly Batteries
      • 7.5mA to 300mA Charge Current
    • Single Inductor Multiple Output (SIMO) Buck-Boost Regulator
      • 3 Outputs from a Single Inductor
    • 150mA LDO Regulator
    • I2C Configurable
    • 2.75mm x 2.15mm, 30-Bump WLP
  • MAX17055 Fuel Gauge Features
    • ModelGauge m5 EZ
      • Eliminates Battery Characterization
      • Eliminates Coulomb Counter Drift
    • 7µA Operating Current
    • 1.4mm x 1.5mm, 9-Bump WLP

Product Details

The MAX32620FTHR board is a rapid development platform designed to help engineers quickly implement battery-optimized solutions with the MAX32620 Arm® Cortex®-M4 microcontroller with FPU. The board also includes the MAX77650 ultra-low power PMIC and MAX17055 fuel gauge to provide efficient power conversion and battery management with minimal board space. The form factor is a small 0.9in x 2.0in dual-row header footprint that is compatible with breadboards and off-theshelf peripheral expansion boards. In addition to the dualrow headers, there are also two 12-pin Pmod™-compatible socket connectors for more expansion options. Also on board are common user-interface peripherals including two RGB indicator LEDs and two pushbuttons. These provide a power-optimized flexible platform for quick proofs-of-concept and early software development to enhance time to market.

Applications

  • Fitness Monitors
  • Portable Medical Devices
  • Sensor Hub
  • Sport Watches
  • Wearable Medical Patches

eval board
schematic 3
MAX77650EVKIT

Evaluation Kit for the MAX77650/MAX77651

Buy Now View Details

Features and Benefits

  • Easy to Use
  • GUI Drives I2C Interface
  • On-Board Ammeter
  • On-Board Thermistor
  • On-Key Options
  • RGB LED Cluster
  • Assembled and Fully Tested
  • Emulates System Loading
  • On-Board Electronic Loads
  • Electronic Loads have steady-state, transient, and random modes
  • Demonstrates End-to-End Analog Multiplexer Implementation
  • On-Board ADC
  • Evaluates Both Push-Button and Slider-Switch On-Key Options

Product Details

The MAX77650/MAX77651 evaluation kit (EV kit) is a fully assembled and tested printed circuit board (PCB) that demonstrates the MAX77650/MAX77651. The EV kit allows for easy evaluation of the various MAX77650/MAX77651 features, including the SIMO buck-boost regulator, linear regulator, analog multiplexer, smart battery charger, on/off controller, and I2C interface.

The MAX77650 and MAX77651 EV kits are identical aside from the device (U1), silkscreen, and two resistive dividers at the SIMO outputs (see the MAX77650/MAX77651 EV Kit Differences section). The MAX77650/MAX77651 devices themselves have different output voltage ranges for the SIMO buck-boost regulator. Consult the device data sheet for more information.

Windows®-based software provides a user-friendly graphical interface as well as a detailed register-based interface to exercise the features of the MAX77650/MAX77651.

Applications

  • Bluetooth Headphones/Hearables
  • Fitness, Health, and Activity Monitors
  • Internet of Things (IoT)
  • Portable Devices
MAX77651EVKIT
Evaluation Kit for the MAX77650/MAX77651
MAX77650EVKIT, MAX77651EVKIT: Photo
MAX32620FTHR
Evaluation Kit for the MAX32620/MAX77650/MAX17055
MAX32620FTHR: Board Photo
MAX77650EVKIT
Evaluation Kit for the MAX77650/MAX77651
MAX77650EVKIT, MAX77651EVKIT: Photo

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