MAX6894ETI+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Detector
• Characteristics: Low-power, high-accuracy, adjustable threshold voltage
• Package: 28-pin TQFN (Thin Quad Flat No-Lead)
• Essence: Monitors and detects voltage levels in electronic systems
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: Adjustable from 0.4V to 5V in 100mV steps
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Open-Drain
• Accuracy: ±1.5% (typical)

Pin Configuration

The MAX6894ETI+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. NC
8. NC
9. NC
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. NC
21. NC
22. NC
23. NC
24. NC
25. NC
26. NC
27. NC
28. NC

Functional Features

• Adjustable Threshold Voltage: The MAX6894ETI+T allows users to set the desired threshold voltage for voltage detection, providing flexibility in different applications.
• Low-Power Operation: With a quiescent current of only 3µA, this voltage detector minimizes power consumption, making it suitable for battery-powered devices.
• High Accuracy: The device offers a typical accuracy of ±1.5%, ensuring precise voltage monitoring in various electronic systems.
• Open-Drain Output: The active-low open-drain output allows easy interfacing with other digital circuits.

Advantages and Disadvantages

Advantages: - Adjustable threshold voltage provides versatility - Low-power operation extends battery life - High accuracy ensures reliable voltage detection - Open-drain output simplifies circuit integration

Disadvantages: - Limited pin configuration options - Lack of built-in hysteresis may require additional external components for noise immunity

Working Principles

The MAX6894ETI+T is designed to monitor the voltage level of a power supply or battery. It compares the input voltage with the user-adjustable threshold voltage. When the input voltage falls below the threshold, the RESET pin is asserted low, indicating a power failure or low voltage condition. The device operates with low power consumption and high accuracy, making it suitable for a wide range of applications.

Detailed Application Field Plans

The MAX6894ETI+T finds applications in various fields, including:

1. Battery-Powered Devices: Provides low-voltage detection to prevent damage to batteries and ensure proper functioning of portable electronics.
2. Power Management Systems: Monitors power supply voltages to trigger appropriate actions in case of voltage fluctuations or failures.
3. Industrial Control Systems: Ensures reliable voltage monitoring in control panels, preventing equipment malfunction due to insufficient power supply.
4. Automotive Electronics: Detects low voltage conditions in automotive systems, triggering warning indicators or initiating backup power sources.

Detailed and Complete Alternative Models

1. MAX6895ETI+T: Similar to MAX6894ETI+T but with adjustable threshold voltage from 0.6V to 5V.
2. MAX6896ETI+T: Offers adjustable threshold voltage from 0.8V to 5V and includes built-in hysteresis for improved noise immunity.
3. MAX6897ETI+T: Provides adjustable threshold voltage from 1V to 5V and features a wider operating temperature range (-40°C to +125°C).

These alternative models offer similar functionality with slight variations in threshold voltage range, hysteresis, and operating temperature, allowing users to choose the most suitable option for their specific requirements.

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