MAX6421XS48+T

Product Overview

Category

The MAX6421XS48+T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: The MAX6421XS48+T is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It can generate a reset signal to ensure proper operation of the device when the power supply voltage drops or fluctuates.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: The MAX6421XS48+T can operate within a wide voltage range, providing flexibility in various applications.

Package

The MAX6421XS48+T is available in a small surface-mount package, specifically the 48-pin thin quad flat no-lead (TQFN) package.

Essence

The essence of the MAX6421XS48+T lies in its ability to monitor voltage levels and provide reset signals, ensuring reliable operation of electronic devices.

Packaging/Quantity

This product is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

• Supply voltage range: 1.6V to 5.5V
• Operating temperature range: -40°C to +85°C
• Reset threshold voltage options: 2.63V, 3.08V, 4.38V, and 4.63V
• Reset timeout period options: 140ms, 560ms, and 1120ms
• Quiescent current: 7µA (typical)

Detailed Pin Configuration

The MAX6421XS48+T has a total of 48 pins. The pin configuration is as follows:

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

Functional Features

• Voltage monitoring: The MAX6421XS48+T continuously monitors the input voltage and compares it with a preset threshold.
• Reset signal generation: When the input voltage falls below the threshold, the IC generates a reset signal to ensure proper device operation.
• Adjustable threshold voltage: The threshold voltage can be set using external resistors, allowing flexibility in different applications.
• Programmable timeout period: The reset signal duration can be adjusted by selecting the appropriate capacitor value, providing customization options.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption, suitable for battery-powered devices.
• Wide operating voltage range for versatile applications.
• Adjustable threshold voltage and timeout period for customization.

Disadvantages

• Limited pin configuration options.
• Requires external resistors and capacitors for threshold and timeout adjustments.

Working Principles

The MAX6421XS48+T operates by continuously monitoring the input voltage using an internal voltage comparator. When the voltage falls below the preset threshold, the IC generates a reset signal. This signal remains active for a programmable timeout period, ensuring proper device operation during voltage fluctuations or drops.

Detailed Application Field Plans

The MAX6421XS48+T finds application in various electronic devices where voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring reliable operation of microcontrollers by providing a reset signal when the power supply voltage drops.
2. Industrial automation: Monitoring voltage levels in industrial automation systems to prevent malfunctions caused by power supply issues.
3. Automotive electronics: Voltage monitoring and reset functions in automotive electronics to maintain stable operation under varying conditions.
4. Consumer electronics: Incorporating the MAX6421XS48+T in consumer electronic devices to enhance reliability and protect against voltage-related failures.

Detailed