MAX6381XR28D2-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, adjustable reset threshold, small package size
• Package: 28-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: The MAX6381XR28D2-T is a voltage monitor and reset circuit designed to monitor the power supply voltage of electronic systems and provide a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: Adjustable from 1.8V to 4.63V in 100mV increments
• Reset Timeout Period: Fixed at 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX6381XR28D2-T has a total of 28 pins. The pin configuration is as follows:

1. VCC
2. GND
3. RESET
4. MR
5. TH
6. CT
7. GND
8. GND
9. GND
10. GND
11. GND
12. GND
13. GND
14. GND
15. GND
16. GND
17. GND
18. GND
19. GND
20. GND
21. GND
22. GND
23. GND
24. GND
25. GND
26. GND
27. GND
28. VCC

Functional Features

• Monitors the power supply voltage and provides a reset signal when the voltage falls below the set threshold.
• Adjustable reset threshold allows customization for different system requirements.
• Fixed reset timeout period ensures reliable reset signals.
• Low quiescent current minimizes power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring helps prevent system malfunction due to low voltage conditions. - Adjustable reset threshold offers flexibility in system design. - Small package size saves board space. - Low-power operation extends battery life in portable devices.

Disadvantages: - Fixed reset timeout period may not be suitable for all applications. - Limited number of pins may restrict the integration of additional features.

Working Principles

The MAX6381XR28D2-T operates by continuously monitoring the power supply voltage using an internal voltage reference and comparator. When the voltage falls below the set threshold, the reset output is activated, indicating a power failure or low voltage condition. The reset signal remains active until the voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6381XR28D2-T is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Power management circuits
5. Battery-powered devices
6. Automotive electronics

Detailed and Complete Alternative Models

1. MAX6381XR28D3-T: Similar to MAX6381XR28D2-T but with a different reset timeout period.
2. MAX6381XR28D4-T: Similar to MAX6381XR28D2-T but with additional features such as watchdog timer functionality.
3. MAX6381XR28D5-T: Similar to MAX6381XR28D2-T but with a wider supply voltage range.

These alternative models offer different specifications and features to cater to specific application requirements.

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