LTC6804IG-1#PBF

Product Overview

Category

The LTC6804IG-1#PBF belongs to the category of integrated circuits (ICs) specifically designed for battery monitoring and management.

Use

This product is primarily used in applications where accurate monitoring and control of battery systems are required. It enables precise measurement of individual cell voltages, temperature, and overall battery stack voltage.

Characteristics

• High accuracy: The LTC6804IG-1#PBF offers exceptional voltage measurement accuracy, ensuring reliable monitoring of battery performance.
• Scalability: It supports battery stacks with up to 12 series-connected cells, making it suitable for a wide range of battery configurations.
• Temperature monitoring: The IC includes built-in temperature sensors, allowing for real-time monitoring of battery temperature.
• Communication interface: It features an SPI (Serial Peripheral Interface) for easy integration with microcontrollers or other control systems.
• Low power consumption: The LTC6804IG-1#PBF is designed to minimize power consumption, extending battery life in portable applications.

Package and Quantity

The LTC6804IG-1#PBF is available in a 38-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Cell voltage measurement range: 0V to 5V
• Voltage measurement accuracy: ±0.25%
• Temperature measurement range: -40°C to +85°C
• Communication interface: SPI (Serial Peripheral Interface)
• Supply voltage range: 2.7V to 5.5V
• Power consumption: 10μA (typical)

Pin Configuration

The LTC6804IG-1#PBF features a total of 38 pins. The pin configuration is as follows:

Pin 1: VREF- Pin 2: VREF+ Pin 3: VC1 ... Pin 38: VC12

Functional Features

• Cell voltage measurement: The LTC6804IG-1#PBF can measure the voltage of each individual cell in a battery stack accurately.
• Temperature monitoring: It includes temperature sensors to monitor the temperature of the battery stack.
• Balancing control: The IC supports active balancing of cells, ensuring uniform charging and discharging across the battery stack.
• Fault detection: It can detect various faults such as overvoltage, undervoltage, and overtemperature conditions, providing enhanced safety for battery systems.
• Communication interface: The SPI interface allows seamless integration with microcontrollers or other control systems.

Advantages and Disadvantages

Advantages

• High accuracy voltage measurement ensures precise monitoring of battery performance.
• Scalability allows compatibility with various battery configurations.
• Built-in temperature sensors enable real-time temperature monitoring.
• Low power consumption extends battery life.
• Active balancing capability ensures uniform cell charging and discharging.

Disadvantages

• Limited to a maximum of 12 series-connected cells.
• Requires external microcontroller or control system for full functionality.

Working Principles

The LTC6804IG-1#PBF operates by measuring the voltage of each individual cell in a battery stack using an internal ADC (Analog-to-Digital Converter). It also monitors the temperature of the battery stack through built-in temperature sensors. The measured values are then communicated to an external microcontroller or control system via the SPI interface.

The IC incorporates balancing circuitry that actively redistributes charge among cells to maintain uniform voltage levels. This feature helps maximize battery capacity and prolong overall battery life.

Application Field Plans

The LTC6804IG-1#PBF finds applications in various fields, including: - Electric vehicles (EVs) and hybrid electric vehicles (HEVs) - Renewable energy systems (solar, wind) - Uninterruptible power supplies (UPS) - Portable electronic devices - Industrial equipment

Alternative Models

For those seeking alternatives to the LTC6804IG-1#PBF, the following models offer similar functionality: - LTC6804HG-1#PBF - LTC6804CG-1#PBF - LTC6804IG-2#PBF - LTC6804HG-2#PBF

These alternative models provide comparable features and can be considered based on specific application requirements.

In conclusion, the LTC6804IG-1#PBF is a highly accurate integrated circuit designed for battery monitoring and management. Its scalability, temperature monitoring capability, and low power consumption make it suitable for a wide range of applications. While limited to 12 series-connected cells, its active balancing feature ensures optimal battery performance. With various alternative models available, users have flexibility in choosing the most suitable option for their specific needs.

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