MAX178BCNG+ - Product Overview

Basic Information

• Category: Integrated Circuit (IC)
• Use: Automotive Battery Management System
• Characteristics:
  • High accuracy and precision
  • Robust performance in harsh automotive environments
  • Advanced safety features
• Package: Ceramic Dual Inline Package (DIP)
• Essence: Highly integrated battery management IC
• Packaging/Quantity: Tray / 100 pieces per tray

Specifications

• Supply Voltage: 4.5V to 36V
• Operating Temperature Range: -40°C to +125°C
• Number of Cells Supported: Up to 14 series-connected cells
• Communication Interface: SPI (Serial Peripheral Interface)
• Features:
  • Cell voltage monitoring and balancing
  • Current, temperature, and voltage measurement
  • Overvoltage and undervoltage protection
  • Overcurrent and short circuit protection
  • State-of-charge estimation
  • Diagnostic and fault detection capabilities

Detailed Pin Configuration

The MAX178BCNG+ has a total of 32 pins. The pin configuration is as follows:

1. VDD
2. GND
3. SCLK
4. MOSI
5. MISO
6. CS
7. ALERT
8. WAKE
9. THERM
10. VREF
11. VC1P
12. VC1N
13. VC2P
14. VC2N
15. VC3P
16. VC3N
17. VC4P
18. VC4N
19. VC5P
20. VC5N
21. VC6P
22. VC6N
23. VC7P
24. VC7N
25. VC8P
26. VC8N
27. VC9P
28. VC9N
29. VC10P
30. VC10N
31. VC11P
32. VC11N

Functional Features

• Accurate monitoring and balancing of individual cell voltages
• Precise measurement of current, temperature, and voltage parameters
• Comprehensive protection against overvoltage, undervoltage, overcurrent, and short circuits
• State-of-charge estimation for battery management
• Advanced diagnostic and fault detection capabilities
• SPI interface for communication with external microcontrollers

Advantages and Disadvantages

Advantages

• High accuracy and precision in battery management
• Robust performance in harsh automotive environments
• Enhanced safety features ensure reliable operation
• Efficient cell balancing for extended battery life
• Comprehensive diagnostic capabilities for easy troubleshooting

Disadvantages

• Relatively high cost compared to simpler battery management solutions
• Requires additional external microcontroller for full functionality

Working Principles

The MAX178BCNG+ operates by continuously monitoring the voltage, current, and temperature of each individual battery cell within an automotive battery pack. It uses this information to accurately estimate the state of charge and detect any faults or abnormalities. The IC also incorporates advanced safety features to protect against overvoltage, undervoltage, overcurrent, and short circuits. Additionally, it enables active cell balancing to equalize the charge levels across all cells, thereby maximizing the overall battery life.

Detailed Application Field Plans

The MAX178BCNG+ is primarily designed for use in automotive battery management systems. It can be integrated into electric vehicles, hybrid vehicles, and other automotive applications where precise monitoring and control of battery parameters are crucial. The IC's robust performance in harsh automotive environments makes it suitable for a wide range of vehicle types and operating conditions.

Detailed and Complete Alternative Models

1. MAX17830: Automotive Battery Management System IC with enhanced safety features and high integration.
2. BQ76952: Multi-cell Battery Monitor and Protector IC with advanced diagnostics and communication capabilities.
3. LTC6804: High voltage battery stack monitor IC with daisy-chainable SPI interface for large battery packs.

These alternative models offer similar functionality to the MAX178BCNG+ and can be considered as alternatives based on specific application requirements.

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