LTC6801IG#TRPBF

Product Overview

Category

LTC6801IG#TRPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in battery management systems (BMS) for monitoring and balancing lithium-ion battery stacks.

Characteristics

• High accuracy voltage measurement
• Balancing capability for individual cells
• Low power consumption
• Wide operating temperature range
• Robust protection features against overvoltage and undervoltage conditions

Package

LTC6801IG#TRPBF is available in a 38-lead plastic QFN package.

Essence

The essence of LTC6801IG#TRPBF lies in its ability to accurately measure voltages across multiple battery cells and perform active balancing to ensure optimal performance and longevity of the battery stack.

Packaging/Quantity

This product is typically packaged in reels, with 250 units per reel.

Specifications

• Input Voltage Range: -0.3V to +5.5V
• Cell Voltage Measurement Accuracy: ±0.25%
• Balancing Current Range: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 2.7V to 5.5V
• Communication Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

The LTC6801IG#TRPBF has a total of 38 pins. The pin configuration is as follows:

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

Functional Features

• Accurate measurement of individual cell voltages
• Active balancing to equalize cell voltages
• Overvoltage and undervoltage protection
• Fault detection and reporting
• Configurable GPIO pins for additional functionality
• SPI interface for communication with external microcontrollers or host systems

Advantages and Disadvantages

Advantages

• High accuracy voltage measurement ensures precise monitoring of battery stack health.
• Active balancing helps extend the overall lifespan of the battery pack.
• Wide operating temperature range allows for reliable operation in various environments.
• Robust protection features safeguard against potentially damaging voltage conditions.

Disadvantages

• Limited balancing current may not be suitable for large battery stacks.
• Requires external microcontroller or host system for communication and control.

Working Principles

The LTC6801IG#TRPBF works by measuring the voltage across each individual battery cell in a stack using its high-accuracy voltage measurement circuitry. It then compares these voltages and activates the balancing circuitry to equalize the cell voltages if any imbalances are detected. The device communicates with an external microcontroller or host system through the SPI interface, providing real-time data on cell voltages and status.

Detailed Application Field Plans

The LTC6801IG#TRPBF is primarily used in battery management systems for various applications, including: - Electric vehicles - Renewable energy storage systems - Uninterruptible power supplies (UPS) - Portable electronic devices

In electric vehicles, the LTC6801IG#TRPBF ensures the optimal performance and longevity of the battery pack by actively balancing cell voltages, preventing premature cell degradation and maximizing overall capacity.

In renewable energy storage systems, the device helps maintain the efficiency and reliability of the battery stack, ensuring consistent power output and extending the system's lifespan.

In UPS applications, the LTC6801IG#TRPBF provides accurate monitoring and protection against voltage anomalies, enhancing the reliability and availability of backup power.

In portable electronic devices, the product enables precise monitoring of battery health, allowing for efficient power management and longer battery life.

Detailed and Complete Alternative Models

Some alternative models to LTC6801IG#TRPBF that offer similar functionality include: - MAX14920 - BQ76940 - ISL94203 - LTC6811

These alternatives provide comparable features and can be considered based on specific application requirements and compatibility with existing systems.

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