LTC6804IG-1#3ZZTRPBF

Product Overview

Category

The LTC6804IG-1#3ZZTRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in battery management systems (BMS) for monitoring and balancing multiple lithium-ion battery cells.

Characteristics

• High accuracy: The LTC6804IG-1#3ZZTRPBF offers precise voltage measurement and balancing capabilities, ensuring optimal performance of battery packs.
• Multi-cell support: It can handle up to 12 series-connected battery cells, making it suitable for a wide range of applications.
• Fault detection: The IC incorporates various protection features such as overvoltage, undervoltage, and overtemperature detection, enhancing the safety of battery systems.
• Communication interface: It supports a serial communication protocol, enabling easy integration with microcontrollers or other control systems.
• Low power consumption: The LTC6804IG-1#3ZZTRPBF is designed to minimize power consumption, prolonging battery life.

Package and Quantity

The LTC6804IG-1#3ZZTRPBF is available in a surface-mount package. The specific package type is ZZ and the quantity per reel is typically 2500 units.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Cell Voltage Measurement Range: 0V to 5V
• Cell Balancing Current: Up to 100mA per cell
• Communication Interface: SPI (Serial Peripheral Interface)
• Temperature Measurement Range: -40°C to +85°C
• Package Type: ZZ
• Package Dimensions: 9mm x 9mm

Pin Configuration

The LTC6804IG-1#3ZZTRPBF has a total of 48 pins. Below is the detailed pin configuration:

Functional Features

• Cell voltage measurement: The LTC6804IG-1#3ZZTRPBF can accurately measure the voltage of each individual battery cell in a series-connected configuration.
• Cell balancing: It provides the capability to balance the charge/discharge levels of each cell, ensuring uniform performance and extending battery life.
• Fault detection and protection: The IC monitors various parameters such as overvoltage, undervoltage, and overtemperature conditions, triggering appropriate actions to prevent damage to the battery cells.
• Communication interface: The SPI interface allows seamless integration with microcontrollers or other control systems for data exchange and system monitoring.

Advantages and Disadvantages

Advantages

• High accuracy voltage measurement ensures precise monitoring of battery cells.
• Integrated cell balancing functionality eliminates the need for external balancing circuits.
• Comprehensive fault detection and protection features enhance the safety and reliability of battery systems.
• Low power consumption contributes to increased battery life.
• Compact package size enables space-efficient designs.

Disadvantages

• Limited to 12 series-connected battery cells, may not be suitable for larger battery packs.
• Requires additional components for temperature measurement if needed.

Working Principles

The LTC6804IG-1#3ZZTRPBF operates by measuring the voltage of each battery cell using an internal analog-to-digital converter (ADC). These measurements are then processed and communicated through the SPI interface. The IC also controls the cell balancing process by diverting excess charge from higher voltage cells to lower voltage cells, ensuring equalization across the battery pack.

Application Field Plans

The LTC6804IG-1#3ZZTRPBF finds applications in various fields where lithium-ion battery packs are used, including:

1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs)
2. Renewable energy storage systems
3. Uninterruptible power supplies (UPS)
4. Portable electronic devices
5. Medical equipment

Alternative Models

Below are some alternative models that offer similar functionality to the LTC6804IG-1#3ZZTRPBF:

1. MAX14920: Integrated battery management IC with cell balancing and fault detection features.
2. BQ76940: Multi-cell battery monitor and protector with communication interface options.
3. ISL94203: Battery management IC supporting a wide range of battery chemistries and pack configurations.

These alternative models can be considered based on specific application requirements and design constraints.

In conclusion, the LTC6804IG-1#3ZZTRPBF is a highly accurate and versatile integrated circuit designed for battery management systems. Its advanced features, compact package, and comprehensive protection mechanisms make it an ideal choice for various applications in the field of lithium-ion battery technology.

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