ADM8697ARU

Product Overview

Category

ADM8697ARU belongs to the category of integrated circuits (ICs).

Use

The ADM8697ARU is commonly used as a voltage supervisor and watchdog timer in various electronic systems.

Characteristics

• Voltage supervisor with adjustable threshold
• Watchdog timer with programmable timeout period
• Low power consumption
• Wide operating voltage range
• Small package size

Package

ADM8697ARU is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of ADM8697ARU lies in its ability to monitor and control the voltage levels in electronic systems, ensuring proper functioning and preventing damage due to voltage fluctuations.

Packaging/Quantity

ADM8697ARU is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Adjustable Threshold Voltage Range: 1.2V to VCC - 0.2V
• Watchdog Timeout Period: Programmable from 6.4ms to 51.2s
• Operating Temperature Range: -40°C to +85°C
• Input Current: 20µA (typical)

Detailed Pin Configuration

1. RESET: Active-low reset output
2. GND: Ground reference
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. VTH: Threshold voltage adjustment pin
6. WDI: Watchdog input
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

1. Voltage Supervision: Monitors the supply voltage and generates a reset signal when it falls below the adjustable threshold.
2. Watchdog Timer: Detects system malfunctions by monitoring the watchdog input and generates a reset signal if no activity is detected within the programmed timeout period.
3. Manual Reset: Allows for manual resetting of the device using the MR pin.

Advantages and Disadvantages

Advantages

• Adjustable threshold voltage allows for flexibility in different applications.
• Programmable watchdog timeout period enables customization based on system requirements.
• Low power consumption helps conserve energy in battery-powered devices.
• Wide operating voltage range ensures compatibility with various power supply levels.
• Small package size saves board space in compact designs.

Disadvantages

• Limited number of available pins may restrict the integration of additional features.
• Lack of specific application examples in the datasheet may require additional research for implementation.

Working Principles

ADM8697ARU operates by continuously monitoring the supply voltage and the watchdog input. When the supply voltage falls below the set threshold, the device generates a reset signal to initiate a system reset. Additionally, the watchdog timer monitors the activity on the watchdog input. If no activity is detected within the programmed timeout period, a reset signal is generated to prevent system lock-up or malfunction.

Detailed Application Field Plans

ADM8697ARU finds applications in various electronic systems where voltage supervision and watchdog functionality are crucial. Some potential application fields include:

1. Microcontrollers and Embedded Systems: Ensures reliable operation and prevents data corruption in microcontroller-based systems.
2. Industrial Control Systems: Provides voltage monitoring and system reset capabilities in industrial automation and control applications.
3. Automotive Electronics: Enhances the safety and reliability of automotive electronics by monitoring critical voltage levels.
4. Power Supply Units: Protects sensitive components by detecting and responding to voltage fluctuations in power supply units.
5. Medical Devices: Ensures the proper functioning of medical equipment by monitoring voltage levels and preventing system failures.

Detailed and Complete Alternative Models

1. ADM8698ARU: Similar to ADM8697ARU with additional features such as a power-on reset delay timer.
2. MAX809: Voltage supervisor and watchdog timer IC from Maxim Integrated.
3. LTC2937: Precision voltage monitor and watchdog timer from Linear Technology.

(Note: This is not an exhaustive list, and there are several alternative models available in the market.)

Word count: 586 words