MAX17043 Lithium Battery Power Detection Alarm Module

MAX17043 Lithium Battery Power Detection Alarm Module is a highly integrated fuel gauge solution for single-cell lithium-ion (Li+) batteries. It uses advanced ModelGauge algorithm to accurately monitor battery voltage and estimate state of charge (SOC) without the need for full charge/discharge calibration. Compact and efficient, it’s ideal for battery-powered projects and portable electronics.

Key Features:

• Fuel Gauge IC: Utilizes MAX17043G+U with built-in ModelGauge algorithm.
• Accurate SOC Estimation: Monitors real-time battery charge level without full cycle learning.
• Low Power Consumption: Operates with minimal current draw, extending battery life.
• Battery Low Alert: Configurable threshold alert when battery drops below set SOC.
• I2C Communication: Allows easy interfacing with microcontrollers and development boards.

Technical Specifications:

• Operating Voltage: 2.5V to 4.5V
• Battery Type: Single-cell Lithium-ion or Lithium-Polymer
• Communication Interface: I2C (standard and fast mode supported)
• Quiescent Current: ~23µA (typical)
• Low Battery Alert Pin: Active-low interrupt output (ALRT)
• IC Model: MAX17043G+U

Mechanical Specifications:

• Module Size: Approx. 22mm × 17mm
• Mounting Type: Through-hole and header pin compatible
• PCB Color: Blue
• Connector Type: 4-pin male header (VCC, GND, SCL, SDA)

Pinout and Wiring:

• VCC: Power input (3.7V Li-ion battery)
• GND: Ground connection
• SCL: I2C clock line
• SDA: I2C data line
• ALRT (optional): Interrupt signal when low battery alert is triggered

Datasheet and Documentation:

• Download MAX17043G+U Datasheet (PDF)

Applications:

• Battery Management Systems: Monitors battery charge in lithium-based battery packs.
• Portable Electronics: Ideal for smartphones, tablets, and wireless modules.
• IoT Devices: Tracks battery levels in remote or low-power embedded systems.
• Arduino/Raspberry Pi Projects: Adds battery monitoring feature to DIY electronics.
• Wearable Devices: Used in compact smart gadgets with rechargeable batteries.

Equivalent Models:

• MAX17048: Enhanced version with higher accuracy and protection features
• MAX17044: Similar interface with additional alert configuration
• INA219 (Alternative): Current and power monitor with voltage detection

Package Includes:

• 1 x MAX17043 Lithium Battery Power Detection Alarm Module