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LTC6804HG-2#TRPBF
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LTC6804HG-2#TRPBF

Product Overview

Category

The LTC6804HG-2#TRPBF belongs to the category of integrated circuits (ICs) specifically designed for battery monitoring and balancing applications.

Use

This product is primarily used in battery management systems (BMS) to monitor and balance the voltage levels of individual battery cells within a battery pack. It ensures optimal performance and longevity of the battery pack by preventing overcharging or undercharging of individual cells.

Characteristics

  • High accuracy: The LTC6804HG-2#TRPBF offers high precision measurement capabilities, allowing for accurate monitoring of battery cell voltages.
  • Balancing capability: It provides the ability to balance the charge across individual battery cells, ensuring uniform voltage levels and maximizing overall battery performance.
  • Low power consumption: This IC is designed to consume minimal power, making it suitable for energy-efficient battery management systems.
  • Robust packaging: The LTC6804HG-2#TRPBF comes in a durable and compact package, ensuring reliable operation even in harsh environmental conditions.

Package and Quantity

The LTC6804HG-2#TRPBF is available in a surface-mount 48-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels containing a specified quantity of ICs.

Specifications

  • Input Voltage Range: 0V to 5V
  • Cell Voltage Measurement Resolution: 16 bits
  • Maximum Number of Cells: 12
  • Communication Interface: SPI (Serial Peripheral Interface)
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage: 2.7V to 5.5V
  • Power Consumption: 10µA (typical)

Pin Configuration

The LTC6804HG-2#TRPBF features a 48-pin SSOP package with the following pin configuration:

  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
  39. GPIO37
  40. GPIO38
  41. GPIO39
  42. GPIO40
  43. GPIO41
  44. GPIO42
  45. GPIO43
  46. GPIO44
  47. GPIO45
  48. VREF+

Functional Features

  • Cell voltage measurement: The LTC6804HG-2#TRPBF can accurately measure the voltage of each individual battery cell within a pack.
  • Balancing control: It provides the capability to balance the charge across cells, ensuring uniform voltage levels and maximizing battery performance.
  • Fault detection: This IC can detect various faults such as overvoltage, undervoltage, and open-wire conditions, enhancing the safety and reliability of the battery system.
  • Communication interface: The SPI interface allows for easy integration with microcontrollers or other control systems.

Advantages and Disadvantages

Advantages

  • High accuracy measurement ensures precise monitoring of battery cell voltages.
  • Balancing capability improves overall battery performance and extends battery life.
  • Low power consumption contributes to energy-efficient battery management systems.
  • Robust packaging ensures reliable operation in challenging environments.

Disadvantages

  • Limited to a maximum of 12 battery cells, which may not be suitable for larger battery packs.
  • Requires additional external components for complete battery management system implementation.

Working Principles

The LTC6804HG-2#TRPBF operates by measuring the voltage of each battery cell using its high-resolution analog-to-digital converters (ADCs). It then compares these measurements to predefined thresholds to detect any abnormalities or imbalances. If imbalances are detected, the IC activates the balancing circuitry to redistribute charge among the cells, equalizing their voltages.

The communication interface allows the LTC6804HG-2#TRPBF to transmit the measured data and receive control signals from an external microcontroller or BMS controller. This enables real-time monitoring and control of the battery pack.

Detailed Application Field Plans

The LTC6804HG-2#TRPBF is widely used in various applications that require battery management, including:

  1. Electric vehicles:

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LTC6804HG-2#TRPBF dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of LTC6804HG-2#TRPBF:

  1. Q: What is LTC6804HG-2#TRPBF? A: LTC6804HG-2#TRPBF is a high-precision 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 LTC6804HG-2#TRPBF? A: LTC6804HG-2#TRPBF can monitor up to 12 series-connected battery cells.

  3. Q: How does LTC6804HG-2#TRPBF measure cell voltages? A: LTC6804HG-2#TRPBF uses an integrated 16-bit delta-sigma ADC to measure the voltage of each individual cell in the battery stack.

  4. Q: Can LTC6804HG-2#TRPBF measure temperature as well? A: Yes, LTC6804HG-2#TRPBF has built-in temperature measurement capabilities for each cell.

  5. Q: What communication interface does LTC6804HG-2#TRPBF support? A: LTC6804HG-2#TRPBF supports a daisy-chainable SPI (Serial Peripheral Interface) for communication with a microcontroller or host system.

  6. Q: Is LTC6804HG-2#TRPBF suitable for automotive applications? A: Yes, LTC6804HG-2#TRPBF is designed to meet the stringent requirements of automotive applications, including ISO 26262 compliance.

  7. Q: Can LTC6804HG-2#TRPBF detect overvoltage and undervoltage conditions? A: Yes, LTC6804HG-2#TRPBF can detect overvoltage and undervoltage conditions on each cell and provide alerts or shutdown signals.

  8. Q: Does LTC6804HG-2#TRPBF have built-in balancing capabilities? A: No, LTC6804HG-2#TRPBF does not have built-in balancing capabilities. It is primarily a monitoring IC.

  9. Q: What is the operating voltage range of LTC6804HG-2#TRPBF? A: LTC6804HG-2#TRPBF operates from 2.7V to 5.5V, making it compatible with a wide range of battery chemistries.

  10. Q: Are there any evaluation boards or development kits available for LTC6804HG-2#TRPBF? A: Yes, Linear Technology (now part of Analog Devices) offers evaluation boards and development kits for LTC6804HG-2#TRPBF to aid in the design and testing process.

Please note that the answers provided here are general and may vary depending on specific application requirements.