LTC6811HG-2#TRPBF

Product Overview

Category

The LTC6811HG-2#TRPBF 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 management of battery systems are required. It is commonly employed in electric vehicles, renewable energy systems, and other high-performance battery-powered devices.

Characteristics

• High accuracy: The LTC6811HG-2#TRPBF offers precise voltage measurement capabilities, enabling accurate monitoring of individual battery cells.
• Multi-cell support: It supports up to 12 series-connected battery cells, making it suitable for a wide range of battery pack configurations.
• Robust communication interface: The IC features an isolated serial communication interface, allowing reliable data transfer between the battery management system and the host controller.
• Low power consumption: The LTC6811HG-2#TRPBF is designed to minimize power consumption, ensuring efficient operation in battery-powered applications.
• Temperature monitoring: It includes temperature measurement functionality, enabling real-time monitoring of battery pack temperature.

Package and Quantity

The LTC6811HG-2#TRPBF is available in a compact and industry-standard 38-lead TSSOP (Thin Shrink Small Outline Package). It is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Voltage Measurement Range: 0V to 5V
• Voltage Measurement Accuracy: ±0.04%
• Temperature Measurement Range: -40°C to 125°C
• Communication Interface: Isolated SPI (Serial Peripheral Interface)
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LTC6811HG-2#TRPBF features a total of 38 pins. The pin configuration is as follows:

1. VREF-
2. VREF+
3. GPIO1
4. GPIO2
5. GPIO3
6. GPIO4
7. GPIO5
8. GPIO6
9. GPIO7
10. GPIO8
11. GPIO9
12. GPIO10
13. GPIO11
14. GPIO12
15. GPIO13
16. GPIO14
17. GPIO15
18. GPIO16
19. GPIO17
20. GPIO18
21. GPIO19
22. GPIO20
23. GPIO21
24. GPIO22
25. GPIO23
26. GPIO24
27. GPIO25
28. GPIO26
29. GPIO27
30. GPIO28
31. GPIO29
32. GPIO30
33. GPIO31
34. GPIO32
35. GPIO33
36. GPIO34
37. GPIO35
38. GPIO36

Functional Features

• Cell voltage measurement: The LTC6811HG-2#TRPBF can accurately measure the voltage of each individual battery cell in a series-connected battery pack.
• Temperature monitoring: It provides temperature measurement capabilities, allowing real-time monitoring of battery pack temperature.
• Fault detection: The IC includes built-in fault detection mechanisms to identify abnormal conditions such as overvoltage, undervoltage, and overtemperature.
• Balancing control: It supports active balancing of battery cells, ensuring uniform charge and discharge across the battery pack.
• Communication interface: The isolated SPI interface enables reliable and secure communication between the battery management system and the host controller.

Advantages and Disadvantages

Advantages

• High accuracy voltage measurement for precise battery monitoring.
• Supports a wide range of battery pack configurations.
• Low power consumption for efficient operation.
• Integrated temperature monitoring for enhanced safety.
• Robust communication interface for reliable data transfer.

Disadvantages

• Limited to 12 series-connected battery cells.
• Requires external balancing circuitry for active cell balancing.

Working Principles

The LTC6811HG-2#TRPBF operates by measuring the voltage of each battery cell in a series-connected configuration. It utilizes an isolated SPI interface to communicate with the host controller, providing accurate cell voltage and temperature information. The IC incorporates fault detection mechanisms to ensure safe operation and supports active balancing to maintain uniform charge levels across the battery pack.

Application Field Plans

The LTC6811HG-2#TRPBF finds extensive application in various fields, including:

1. Electric Vehicles: It is used in electric vehicle battery management systems to monitor and manage the performance of the battery pack.
2. Renewable Energy Systems: The IC is employed in renewable energy storage systems to optimize battery utilization and ensure efficient energy storage.
3. Uninterruptible Power Supplies (UPS): It is utilized in UPS systems to monitor battery health and provide reliable backup power during outages.
4. Portable Medical Devices: The LTC6811HG-2#TRPBF is integrated into