BQ33100PWR

Product Overview

Category

BQ33100PWR belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery fuel gauging and protection in various electronic devices.

Characteristics

• Battery fuel gauging and protection functionality
• High accuracy measurement capabilities
• Low power consumption
• Compact size
• Wide operating temperature range

Package

The BQ33100PWR comes in a small outline package (SOIC) with 20 pins.

Essence

The essence of BQ33100PWR lies in its ability to accurately measure and monitor the state of charge (SOC) and state of health (SOH) of batteries, while also providing protection against overcharging, over-discharging, and short circuits.

Packaging/Quantity

The BQ33100PWR is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

• Operating Voltage: 2.7V to 4.8V
• Operating Temperature Range: -40°C to +85°C
• Fuel Gauging Accuracy: ±1%
• Protection Voltage Thresholds: Configurable through software
• Communication Interface: I2C

Detailed Pin Configuration

The BQ33100PWR has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

1. VSS - Ground
2. SDA - I2C Data Line
3. SCL - I2C Clock Line
4. ALERT - Interrupt Output
5. BAT - Battery Terminal
6. TS - Thermistor Input
7. VDD - Power Supply
8. VSS - Ground
9. VSS - Ground
10. VSS - Ground
11. VSS - Ground
12. VSS - Ground
13. VSS - Ground
14. VSS - Ground
15. VSS - Ground
16. VSS - Ground
17. VSS - Ground
18. VSS - Ground
19. VSS - Ground
20. VSS - Ground

Functional Features

1. Accurate Fuel Gauging: The BQ33100PWR provides precise measurement of battery SOC and SOH, enabling accurate estimation of remaining battery capacity.
2. Battery Protection: It offers protection against overcharging, over-discharging, and short circuits, ensuring the safety and longevity of the battery.
3. Low Power Consumption: The IC itself consumes minimal power, contributing to energy efficiency in battery-powered devices.
4. Configurability: The voltage thresholds for protection can be adjusted through software, allowing customization based on specific battery requirements.

Advantages and Disadvantages

Advantages

• High accuracy fuel gauging
• Comprehensive battery protection
• Low power consumption
• Compact size for easy integration
• Customizable protection thresholds

Disadvantages

• Limited to I2C communication interface
• Not suitable for applications requiring higher operating voltages

Working Principles

The BQ33100PWR utilizes advanced algorithms and circuitry to measure the battery's voltage, current, and temperature. By analyzing these parameters, it accurately estimates the SOC and SOH of the battery. Additionally, it continuously monitors the battery's voltage and current to provide protection against potential hazards such as overcharging and over-discharging.

Detailed Application Field Plans

The BQ33100PWR finds application in various electronic devices that rely on battery power. Some of the key application fields include:

1. Portable Electronics: Smartphones, tablets, laptops, and wearable devices benefit from accurate battery monitoring and protection provided by the BQ33100PWR.
2. Electric Vehicles: The IC ensures efficient battery management in electric vehicles, optimizing performance and extending battery life.
3. Energy Storage Systems: The BQ33100PWR is suitable for use in energy storage systems, enabling precise monitoring and protection of batteries used for renewable energy storage.

Detailed and Complete Alternative Models

1. BQ34110PWR: This IC offers similar functionality to the BQ33100PWR but includes additional features such as cell balancing and support for higher operating voltages.
2. MAX17055G+T: A fuel gauge IC with integrated protection features, suitable for applications requiring high accuracy and extended temperature range.
3. LTC2945IMS#PBF: This IC provides accurate battery monitoring and protection, along with an extended operating temperature range and multiple communication interfaces.

(Note: The alternative models listed above are just a few examples and not an exhaustive list.)

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