MAX77818EWZ+T

The MAX77818EWZ+T is a highly integrated, high-efficiency, and high-performance buck-boost charger that provides a complete power solution for portable devices. It offers adaptive charge regulation, USB On-the-Go (OTG) support, and flexible system power distribution, making it ideal for a wide range of battery-powered applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• BST_SW: Buck-Boost Switching Node
• PWR: System Power Output
• TS: Junction Temperature Sense
• RESET: Reset and System Power Enable
• VOUT: Regulated Output Voltage
• CE: Chip Enable
• VIN: Input Voltage
• GND: Ground
• PROG: Programming and Control

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MAX77818EWZ+T for a visual representation.

Key Features

• High Integration: The MAX77818EWZ+T integrates a buck-boost charger, Smart Power Selector, and autonomous and host-controlled operation, reducing component count and board space.
• Adaptive Charge Regulation: Provides efficient and safe charging for a variety of battery types, including lithium-ion and lithium-polymer.
• USB On-the-Go (OTG) Support: Enables the device to operate as both a power provider and power consumer, enhancing versatility in portable applications.
• Fast Charging: Offers high charging current with programmable input current limit and thermal regulation for rapid charging cycles.
• Multiple Protection Features: Includes overvoltage protection, overcurrent protection, and thermal shutdown to ensure safe and reliable operation.

Note: For detailed technical specifications, please refer to the MAX77818EWZ+T datasheet.

Application

• Portable Devices: Ideal for use in smartphones, tablets, portable media players, and handheld gaming consoles.
• Wearables: Suitable for powering and charging smartwatches, fitness trackers, and other wearable electronics.
• Portable Medical Devices: Used in portable medical equipment requiring efficient and robust power solutions.

Functionality

The MAX77818EWZ+T is a highly integrated buck-boost charger that delivers adaptive charging, USB OTG support, and comprehensive protection features, providing a complete power management solution for portable devices.

Usage Guide

• Power Supply: Apply the input voltage (VIN) and ground (GND) to power the device.
• Battery Connection: Connect the regulated output voltage (VOUT) to the battery for efficient charging and power distribution.
• Control Interface: Utilize the programming and control (PROG) pin for device configuration and customization.

Frequently Asked Questions

Q: What is the input voltage range supported by MAX77818EWZ+T?
A: The MAX77818EWZ+T supports an input voltage range suitable for single-cell lithium-ion batteries and various USB power sources.

Q: Can the MAX77818EWZ+T be used for fast charging applications?
A: Yes, the MAX77818EWZ+T offers fast charging capabilities with programmable input current limit and thermal regulation to support rapid charging requirements.