Linear Technology/Analog Devices
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LTC6804IG-2#PBF
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LTC6804IG-2#PBF

Product Overview

Category

The LTC6804IG-2#PBF belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery monitoring and balancing in various applications.

Characteristics

  • Battery monitoring and balancing IC
  • High accuracy measurement capabilities
  • Multiple cell voltage monitoring
  • Balancing functionality for individual cells
  • Low power consumption
  • Robust design for harsh environments

Package

The LTC6804IG-2#PBF comes in a 38-lead plastic SSOP package.

Essence

The essence of the LTC6804IG-2#PBF lies in its ability to accurately monitor and balance the voltages of multiple cells in a battery system.

Packaging/Quantity

This product is typically packaged in reels and is available in quantities specified by the manufacturer.

Specifications

  • Number of Cells: Up to 12 series-connected cells
  • Cell Voltage Measurement Range: 0V to 5V
  • Cell Voltage Measurement Accuracy: ±0.25%
  • Balancing Current: Up to 100mA per cell
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage Range: 2.7V to 5.5V
  • Communication Interface: SPI (Serial Peripheral Interface)
  • Dimensions: 10.2mm x 6.4mm x 1.75mm

Detailed Pin Configuration

The LTC6804IG-2#PBF has 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. VREF

Functional Features

  • Accurate measurement of individual cell voltages
  • Balancing functionality to equalize cell voltages
  • Overvoltage and undervoltage detection
  • Temperature monitoring
  • Fault detection and reporting
  • Daisy-chainable for larger battery systems
  • Low power consumption for extended battery life

Advantages and Disadvantages

Advantages

  • High accuracy voltage measurement
  • Efficient cell balancing capability
  • Wide operating temperature range
  • Robust design for reliability in harsh environments
  • Flexible GPIO pins for additional functionality

Disadvantages

  • Limited to 12 series-connected cells
  • Requires external microcontroller for communication and control

Working Principles

The LTC6804IG-2#PBF works by measuring the voltage of each individual cell in a battery system using its built-in analog-to-digital converters (ADCs). It then compares these voltages to predefined thresholds to detect overvoltage and undervoltage conditions. If any imbalances are detected, the IC activates the balancing circuitry to equalize the cell voltages.

The device communicates with an external microcontroller through the SPI interface, providing real-time data on cell voltages, temperature, and fault status. The microcontroller can also send commands to control the balancing operation and configure various parameters.

Detailed Application Field Plans

The LTC6804IG-2#PBF is widely used in applications that require accurate monitoring and balancing of battery systems. Some common application fields include:

  1. Electric vehicles (EVs) and hybrid electric vehicles (HEVs)
  2. Renewable energy storage systems
  3. Uninterruptible power supplies (UPS)
  4. Industrial equipment and machinery
  5. Medical devices
  6. Aerospace and aviation

In EVs and HEVs, the LTC6804IG-2#PBF ensures the optimal performance and longevity of the battery pack by preventing overcharging or undercharging of individual cells. In renewable energy storage systems, it helps maintain the efficiency and reliability of the battery bank.

Detailed and Complete Alternative Models

  1. LTC6804-1#PBF: Similar to LTC6804IG-2#PBF but with a different pin configuration.
  2. LTC6804-2#PBF: Another variant with a different pin configuration.
  3. LTC6804-3#PBF: Similar functionality but optimized for higher cell count applications.

These

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LTC6804IG-2#PBF v technických řešeních

Sure! Here are 10 common questions and answers related to the application of LTC6804IG-2#PBF in technical solutions:

  1. Q: What is LTC6804IG-2#PBF? A: LTC6804IG-2#PBF is a high-performance battery stack monitor IC designed for multi-cell battery monitoring applications.

  2. Q: What is the maximum number of cells that can be monitored using LTC6804IG-2#PBF? A: LTC6804IG-2#PBF can monitor up to 12 series-connected battery cells.

  3. Q: How does LTC6804IG-2#PBF communicate with the microcontroller or host system? A: LTC6804IG-2#PBF uses an isolated serial communication interface called SPI (Serial Peripheral Interface) to communicate with the microcontroller or host system.

  4. Q: Can LTC6804IG-2#PBF measure individual cell voltages? A: Yes, LTC6804IG-2#PBF can measure and report the voltage of each individual cell in the battery stack.

  5. Q: Does LTC6804IG-2#PBF provide any fault detection features? A: Yes, LTC6804IG-2#PBF has built-in fault detection features such as overvoltage, undervoltage, and overtemperature protection.

  6. Q: Can LTC6804IG-2#PBF measure battery current? A: No, LTC6804IG-2#PBF is specifically designed for measuring cell voltages and does not have built-in current measurement capabilities.

  7. Q: Is LTC6804IG-2#PBF suitable for automotive applications? A: Yes, LTC6804IG-2#PBF is suitable for automotive applications and meets the required automotive standards.

  8. Q: Can LTC6804IG-2#PBF be used in high-voltage battery systems? A: Yes, LTC6804IG-2#PBF can be used in high-voltage battery systems as it supports a wide operating voltage range.

  9. Q: Does LTC6804IG-2#PBF support daisy-chaining multiple ICs for larger battery stacks? A: Yes, LTC6804IG-2#PBF supports daisy-chaining multiple ICs, allowing monitoring of larger battery stacks with more than 12 cells.

  10. Q: Are there any evaluation boards or development kits available for LTC6804IG-2#PBF? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and development kits for LTC6804IG-2#PBF to aid in the design and testing process.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.