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MAX77860EWG+T

ADIMAX77860EWG+T

Analog Devices Inc./Maxim Integrated
Charger IC Lithium Ion/Polymer 81-WLP (3.87x3.96)
Active4,461 in stock
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Overview

The MAX77860 is a high-efficiency switch-mode charger designed for single-cell Lithium-Ion or Lithium-Polymer batteries, featuring integrated USB Type-C CC detection. It supports a maximum charge current of 3A and operates from input voltages up to 13.5V, making it suitable for modern USB-powered portable electronics. The device integrates a buck regulator, battery charger, and I2C interface for programmable charge parameters and status monitoring.

Why Choose This Part

The integrated USB Type-C CC detection reduces BOM count and PCB area by eliminating the need for a separate port controller. Its high 3A charging capability and programmable safety features, such as overvoltage and overcurrent protection, ensure fast yet safe energy delivery. The 81-WLP package offers an extremely small footprint for compact mobile designs.

Applications

Portable Multimedia Players
Provides fast 3A charging and power path management for high-capacity single-cell batteries in handheld entertainment devices.
Industrial Handheld Terminals
Utilizes the robust 13.5V maximum input rating and I2C telemetry for reliable operation in rugged environments.
USB Type-C Charging Docks
Leverages integrated CC detection to automatically negotiate power levels from USB Type-C sources without external controllers.
Smartphones and Tablets
Ideal for space-constrained designs requiring high-efficiency thermal management during high-current charging cycles.

Key Specifications

Interface I2C
Mounting Type Surface Mount
Package / Case 81-WFBGA, WLBGA
Number of Cells 1
Fault Protection Over Current, Over Voltage
Battery Chemistry Lithium Ion/Polymer
Current - Charging Constant - Programmable
Battery Pack Voltage 4.2V
Charge Current - Max 3A
Operating Temperature -40degC ~ 85degC (TA)
Programmable Features Current Limit
Voltage - Supply (Max) 13.5V
Supplier Device Package 81-WLP (3.87x3.96)

Getting Started

To evaluate this IC, use the MAX77860EVKIT evaluation kit which provides a proven PCB layout and header access to the I2C interface. Connect the board to a PC via a USB-to-I2C adapter and use the Maxim Integrated GUI to configure charging current, voltage limits, and monitor fault registers. Ensure the 81-WLP package footprint is handled with precision SMT processes during prototyping.

Also Consider

MCP73871 MCHPMicrochip Technology - A simpler, non-I2C standalone charger for applications that do not require software-based configuration or USB-C CC logic.