MAX1555EZK

The MAX1555EZK is a compact and efficient lithium-ion battery charger IC designed for single-cell batteries. It features an integrated MOSFET and current-sense amplifier, offering a complete charging solution in a small package.

Pinout

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

• VCC: Positive power supply
• GND: Power ground
• IN: Battery input
• TS: Temperature sense input
• PROG: Charge current programming pin
• STAT: Charge status output

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the MAX1555EZK IC for a visual representation.

Key Features

• Single-Cell Lithium-Ion Charger: Specifically designed for charging single-cell lithium-ion batteries.
• Integrated MOSFET: Features an integrated MOSFET for efficient charging without requiring external components.
• Current-Sense Amplifier: Includes a current-sense amplifier for accurate current monitoring during charging.
• Programmable Charge Current: Allows for programming of charge current through the PROG pin, offering flexibility based on battery capacity and application requirements.
• Charge Status Output: Provides a status output pin (STAT) for indicating the charging status to the system.
• Small Package: Available in a compact package, suitable for space-constrained applications.

Note: For detailed technical specifications, please refer to the MAX1555EZK datasheet.

Application

• Portable Devices: Ideal for charging lithium-ion batteries in portable electronic devices.
• Battery-Powered Systems: Suitable for integration into various battery-powered systems requiring single-cell battery charging.
• Consumer Electronics: Used in consumer electronic products such as smartphones, tablets, and portable media players.

Functionality

The MAX1555EZK provides a complete charging solution for single-cell lithium-ion batteries, featuring integrated components for efficient and reliable charging performance.

Usage Guide

• Power Supply: Connect VCC (Pin 1) to the positive power supply and GND (Pin 2) to the power ground.
• Battery Connection: Connect the battery to the IN (Pin 3) input pin for charging.
• Temperature Monitoring: Optionally connect a temperature sensor to the TS (Pin 4) input for thermal management during charging.
• Charge Current Programming: Adjust charge current by connecting a resistor to the PROG (Pin 5) pin as per the datasheet guidelines.
• Charge Status Indication: Monitor charge status through the STAT (Pin 6) output pin.

Frequently Asked Questions

Q: Can the MAX1555EZK charge other types of batteries?
A: The MAX1555EZK is specifically designed for single-cell lithium-ion batteries and may not be suitable for other battery chemistries.

Q: What is the typical charge current range for the MAX1555EZK?
A: The charge current can typically be programmed from a few milliamps up to a maximum specified in the datasheet, depending on the external components used.