MAX17041G+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Battery Fuel Gauge
• Characteristics: Accurate battery state-of-charge estimation, low power consumption, small package size
• Package: 8-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Monitoring and reporting the remaining capacity of a battery
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Operating Voltage Range: 2.5V to 4.5V
• Battery Voltage Range: 2.5V to 4.5V
• Operating Temperature Range: -40°C to +85°C
• Accuracy: ±1% (typical)
• Communication Interface: I2C
• Dimensions: 3mm x 3mm

Pin Configuration

The MAX17041G+T has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data input/output for I2C communication
4. SCL: Serial clock input for I2C communication
5. ALERT: Open-drain output that indicates a low-battery condition
6. BAT: Battery voltage input
7. TS: Thermistor input for temperature monitoring
8. NC: No connection

Functional Features

• Accurate battery state-of-charge estimation using the patented ModelGauge algorithm
• Low power consumption, suitable for portable devices
• Automatic compensation for battery aging effects
• Programmable alert threshold for low-battery indication
• Temperature monitoring for enhanced accuracy

Advantages

• Precise estimation of remaining battery capacity
• Low power consumption extends battery life
• Small package size allows for space-constrained designs
• Automatic compensation for battery aging ensures accurate readings over time

Disadvantages

• Limited to I2C communication interface
• Requires an external thermistor for temperature monitoring

Working Principles

The MAX17041G+T utilizes the ModelGauge algorithm to estimate the state-of-charge of a battery. It combines measurements of the battery voltage, current, and temperature to accurately determine the remaining capacity. The algorithm compensates for battery aging effects, providing reliable readings over time.

Application Field Plans

The MAX17041G+T is commonly used in various applications, including:

1. Smartphones and tablets
2. Wearable devices
3. Portable medical equipment
4. GPS navigation systems
5. Wireless headphones

Alternative Models

1. MAX17043G+T: Similar functionality with additional features like programmable input impedance and integrated Coulomb counter.
2. MAX17044G+T: Higher accuracy version with ±0.5% typical accuracy.
3. MAX17045G+T: Lower power consumption variant with reduced quiescent current.

These alternative models provide options based on specific requirements and design constraints.

In conclusion, the MAX17041G+T is a highly accurate battery fuel gauge IC that offers low power consumption and small package size. Its advanced features, such as automatic compensation for battery aging, make it suitable for a wide range of portable devices. However, it is important to consider the limitations of the I2C communication interface and the need for an external thermistor for temperature monitoring.