MAX6389LT44D3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
  • Provides a reliable way to ensure proper system initialization and operation.
• Package: LT44 (4mm x 4mm, 0.75mm height, 44-pin package)
• Essence: Voltage monitoring and reset functionality in a compact IC package.
• Packaging/Quantity: Tape and Reel, 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)

Pin Configuration

The MAX6389LT44D3+T has a total of 44 pins. The pin configuration is as follows:

1. VCC
2. GND
3. RESET
4. MR
5. TH
6. CT
7. VTH
8. VDD
9. VDD
10. VDD
11. VDD
12. VDD
13. VDD
14. VDD
15. VDD
16. VDD
17. VDD
18. VDD
19. VDD
20. VDD
21. VDD
22. VDD
23. VDD
24. VDD
25. VDD
26. VDD
27. VDD
28. VDD
29. VDD
30. VDD
31. VDD
32. VDD
33. VDD
34. VDD
35. VDD
36. VDD
37. VDD
38. VDD
39. VDD
40. VDD
41. VDD
42. VDD
43. VDD
44. VDD

Functional Features

• Monitors the voltage level of a power supply.
• Generates a reset signal when the voltage falls below the threshold.
• Adjustable reset timeout period allows customization for specific applications.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - Compact package size enables space-saving designs. - Wide supply voltage range accommodates various power supply configurations. - Adjustable reset timeout period offers flexibility in system initialization. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited threshold voltage options may not suit all voltage monitoring requirements. - Not suitable for high-voltage applications beyond the specified supply voltage range.

Working Principles

The MAX6389LT44D3+T operates by continuously monitoring the voltage level of the connected power supply. When the voltage falls below the programmed threshold, it generates a reset signal to ensure proper system initialization. The reset timeout period can be adjusted to meet specific application requirements. The IC operates with low quiescent current, making it suitable for battery-powered devices.

Detailed Application Field Plans

The MAX6389LT44D3+T finds applications in various fields, including:

1. Embedded Systems: Provides reliable voltage monitoring and reset functionality for microcontrollers, DSPs, and other embedded systems.
2. Industrial Automation: Ensures proper initialization and operation of control systems, PLCs, and industrial equipment.
3. Automotive Electronics: Monitors power supply voltage in automotive applications, preventing system malfunctions due to voltage fluctuations.
4. Consumer Electronics: Used in devices such as smartphones, tablets, and gaming consoles to ensure stable operation during power supply variations.

Detailed and Complete Alternative Models

1. MAX6389LT44D3+T: The model described in this entry.
2. MAX6388LT44D3+T: Similar to MAX6389LT44D3+T but with different threshold voltage options.
3. MAX6387LT44D3+T: Voltage monitor and reset circuit with additional features like watchdog timer and manual reset input.

(Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

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