MAX77818
Info: : PRODUCTION
searchIcon
cartIcon

MAX77818

Dual Input, Power Path, 3A Switching Mode Charger with Fuel Gauge

Show More showmore-icon

Industry's Highest Efficiency Switching Mode Charger in a Smaller Solution Size in 3.87mm x 3.61mm WLP

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 2
1ku List Price
price unavailable
Features
  • Smart Power Path, Dual Input Switching Charger
    • Up to 13.4V Operating/16V Withstand/4A (CHGIN)
    • Up to 6V Operating/1.26A (WCIN)
    • Reverse Leakage Blocking
    • Reverse Boost with up to 5.1V/1.5A (OTG)
    • Integrated Low-Loss FETs for 3A Charging/4.5A Discharging
    • 95.6% Peak Efficiency at 5V/4.35V
    • Full Feature Charger with Protection
    • Thermal Regulation and JEITA Compliance
  • ModelGauge m5 Fuel Gauge
    • Time-to-Empty and Time-to-Full Prediction
    • Accurate Battery Capacity (SOC) and Time-to-Empty Readings
      • Temperature, Age, and Discharge Rate Compensated
      • No Calibration
      • Integrated FET Current Sensing
      • Maintains Accuracy without Empty, Full, or Idle States
    • Low Quiescent Current (IQ)
  • Two High Voltage Input LDOs
  • I2C Serial Interface
  • 72-Bump, 3.867mm x 3.608mm, 0.4mm Pitch WLP
Additional Details
show more Icon

The MAX77818 integrates a high-performance 3A switching charger and proprietary ModelGauge™ m5 fuel gauge in a space saving WLP package, ideal for USB powered portable devices. The smart power path charger supports two inputs with reverse blocking and USB On-the-Go (OTG), integrates all power switches, operates at high-switching frequency with high efficiency, enabling low heat designs with small external components. The ModelGauge m5 algorithm combines the excellent short-term accuracy and linearity of a coulomb counter with the long-term stability of a voltage-based fuel gauge, along with temperature compensation to provide industry-leading fuel-gauge accuracy. The device also integrates two high voltage input LDOs and is highly programmable with I2C interface.

Applications

  • Bluetooth Headsets
  • Handheld Devices
  • Industrial PCs
  • Internet of Things (IoT)
  • Portable Medical Devices
  • Smart Home Automation, Sensors
  • Wearable, Smart Watches
  • Wireless Speakers
Part Models 2
1ku List Price
price unavailable

close icon

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX77818EWZ+
  • HTML
  • HTML
MAX77818EWZ+T
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 1, 2022

- 2259

TEST

MAX77818EWZ+

PRODUCTION

MAX77818EWZ+T

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 1, 2022

- 2259

arrow down

TEST

MAX77818EWZ+

PRODUCTION

MAX77818EWZ+T

PRODUCTION

Software & Part Ecosystem

Evaluation Kits 1

reference details image

MAX77818EVSYS

Evaluation System for MAX77818

zoom

MAX77818EVSYS

Evaluation System for MAX77818

Evaluation System for MAX77818

Features and Benefits

  • Demonstrates 12VCHGIN, 3A Charge
  • Demonstrates m5 Fuel Gauge Performance
  • Demonstrates Dual Input Charge
  • Demonstrates OTG Mode
  • Evaluates MAX77818 Detail Performances

Product Detail

The MAX77818 evaluation system (EV system) consists of a MAX77818 evaluation kit (EV kit) and a companion Maxim MINIQUSB interface board.

The MAX77818 EV kit is an assembled and tested PC board that demonstrates the MAX77818. The IC contains 12V input and 3A output switching mode charger.

The Maxim MINIQUSB interface board allows an IBM- compatible PC to use its USB port to emulate an I2C 2-wire interface. Windows XP®/Windows® 7 software provides a user-friendly interface to exercise the features of the MAX77818. The menu-driven program offers a graphical user interface with control buttons.

Reference Designs 1

maxrefdes96 figure 1

Single-Battery Charger and Fuel Gauge with Boost for Arduino Platforms

Recently Viewed