MAX170CCWE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: Low-power fuel gauge for lithium-ion (Li+) batteries
• Package: 16-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Accurate battery capacity measurement and monitoring
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Operating Voltage Range: 2.7V to 4.5V
• Battery Voltage Range: 2.5V to 4.5V
• Current Consumption: 7µA (typical)
• Fuel Gauge Accuracy: ±1%
• Temperature Measurement Range: -40°C to +85°C
• Communication Interface: I2C
• Cell Balancing: Internal cell balancing feature
• Protection Features: Overvoltage, undervoltage, and overcurrent protection

Pin Configuration

The MAX170CCWE has a 16-pin TSSOP package with the following pin configuration:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SDA: Serial Data Line for I2C communication
4. SCL: Serial Clock Line for I2C communication
5. ALERT: Open-drain output for alert indication
6. BAT: Battery voltage sense input
7. TS: Thermistor input for temperature sensing
8. C1P: Positive terminal of external capacitor for cell balancing
9. C1N: Negative terminal of external capacitor for cell balancing
10. C2P: Positive terminal of second external capacitor for cell balancing
11. C2N: Negative terminal of second external capacitor for cell balancing
12. VSS: Negative terminal of internal reference voltage
13. VREF: Reference voltage output
14. VSS: Negative terminal of internal reference voltage
15. VSS: Negative terminal of internal reference voltage
16. VDD: Power supply voltage input

Functional Features

• Accurate battery capacity measurement and monitoring
• Real-time voltage, current, and temperature measurements
• Automatic compensation for battery aging effects
• Integrated cell balancing for improved battery performance
• Low-power consumption for extended battery life
• I2C interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - High accuracy in measuring battery capacity - Integrated cell balancing improves battery performance - Low power consumption extends battery life - Wide operating voltage range allows compatibility with various batteries - Temperature measurement range suitable for most applications

Disadvantages: - Limited to lithium-ion (Li+) battery types - Requires I2C communication interface for data retrieval - Not suitable for high-current applications

Working Principles

The MAX170CCWE utilizes a sophisticated algorithm to accurately measure the capacity of lithium-ion batteries. It continuously monitors the battery voltage, current, and temperature to estimate the remaining charge. The integrated cell balancing feature ensures that each cell within the battery pack is charged and discharged evenly, maximizing overall battery performance.

Detailed Application Field Plans

The MAX170CCWE is widely used in various applications where accurate battery capacity measurement and monitoring are crucial. Some common application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and wearable devices.
2. Medical Devices: Patient monitoring systems, portable medical equipment.
3. Industrial Equipment: Handheld tools, wireless sensors, and remote monitoring devices.
4. Internet of Things (IoT): Battery-powered IoT devices, smart home automation systems.
5. Automotive: Electric vehicles, hybrid vehicles, battery management systems.

Detailed and Complete Alternative Models

1. MAX17043G+T: Similar low-power fuel gauge IC with 8-pin TDFN package.
2. MAX17055G+T: Higher accuracy fuel gauge IC with 12-pin TDFN package.
3. MAX17201G+U: Fuel gauge IC with integrated protector and 14-pin TSSOP package.

These alternative models offer similar functionality and can be considered as alternatives to the MAX170CCWE based on specific application requirements.

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