LTC6804HG-1#TRPBF

Product Overview

Category

The LTC6804HG-1#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 the safe and efficient operation of batteries, especially in applications where multiple cells are connected in series.

Characteristics

• Battery monitoring: The LTC6804HG-1#TRPBF provides accurate measurement of each battery cell's voltage, allowing for precise monitoring of the overall battery pack's health.
• Balancing capability: It also includes built-in balancing circuitry that can equalize the charge across individual battery cells, preventing overcharging or undercharging.
• High accuracy: The LTC6804HG-1#TRPBF offers high-resolution voltage measurements with low offset and noise, ensuring reliable and precise readings.
• Robust design: This IC is designed to operate in harsh environments, with features such as overvoltage protection, undervoltage lockout, and thermal shutdown.

Package and Quantity

The LTC6804HG-1#TRPBF is available in a 48-pin SSOP (Shrink Small Outline Package) package. It is typically sold in reels, with a quantity of 250 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Cell Voltage Measurement Range: 0V to 5V
• Cell Voltage Measurement Resolution: 16 bits
• Maximum Number of Cells: 12
• Balancing Current: Up to 100mA per cell
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LTC6804HG-1#TRPBF features a 48-pin SSOP package with the following pin configuration:

1. VREF-
2. VREF+
3. VDD
4. GND
5. GPIO1
6. GPIO2
7. GPIO3
8. GPIO4
9. GPIO5
10. GPIO6
11. GPIO7
12. GPIO8
13. GPIO9
14. GPIO10
15. GPIO11
16. GPIO12
17. GPIO13
18. GPIO14
19. GPIO15
20. GPIO16
21. GPIO17
22. GPIO18
23. GPIO19
24. GPIO20
25. GPIO21
26. GPIO22
27. GPIO23
28. GPIO24
29. GPIO25
30. GPIO26
31. GPIO27
32. GPIO28
33. GPIO29
34. GPIO30
35. GPIO31
36. GPIO32
37. GPIO33
38. GPIO34
39. GPIO35
40. GPIO36
41. GPIO37
42. GPIO38
43. GPIO39
44. GPIO40
45. GPIO41
46. GPIO42
47. GPIO43
48. GPIO44

Functional Features

• Cell voltage measurement: The LTC6804HG-1#TRPBF can measure the voltage of up to 12 battery cells simultaneously, providing accurate readings for monitoring purposes.
• Balancing control: It includes integrated balancing circuitry that can actively balance the charge across individual cells, ensuring optimal performance and extending battery life.
• Communication interface: The IC supports a serial communication interface, allowing for easy integration into battery management systems.
• Fault detection: The LTC6804HG-1#TRPBF can detect various fault conditions such as overvoltage, undervoltage, and overtemperature, providing protection for the battery pack.

Advantages and Disadvantages

Advantages

• High accuracy voltage measurements
• Integrated balancing circuitry
• Robust design for harsh environments
• Serial communication interface for easy integration

Disadvantages

• Limited to a maximum of 12 battery cells
• Requires external components for complete battery management system implementation

Working Principles

The LTC6804HG-1#TRPBF works by measuring the voltage of each battery cell using an internal analog-to-digital converter (ADC). It then compares these measurements to predefined thresholds to detect any abnormal conditions. If imbalances are detected, the IC activates the balancing circuitry to equalize the charge across the cells. The measured data can be accessed through the serial communication interface, allowing for real-time monitoring and control.

Application Field Plans

The LTC6804HG-1#TRPBF is widely used in various applications that require battery monitoring and balancing, including:

1. Electric vehicles: Battery packs in electric vehicles often consist of multiple cells connected in series. The LTC6804HG-1#TRPBF ensures the safe operation and longevity of these battery packs.