ADM8699ARNZ

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Precision monitoring, low power consumption
• Package: 8-pin SOIC (Small Outline Integrated Circuit)
• Essence: Monitors voltage levels and provides reset signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: Adjustable from 1.2V to 4.63V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. CT: Capacitor Connection for Reset Timeout
6. TH: Threshold Voltage Adjustment
7. NC: No Connection
8. NC: No Connection

Functional Features

• Precision voltage monitoring
• Adjustable reset threshold voltage
• Adjustable reset timeout period
• Manual reset input for immediate system reset
• Open-drain reset output
• Low power consumption

Advantages

• Accurate voltage supervision ensures reliable system operation
• Adjustable threshold and timeout allow customization for different applications
• Manual reset input provides flexibility in system control
• Open-drain reset output allows easy interfacing with other devices
• Low power consumption helps prolong battery life in portable applications

Disadvantages

• Limited number of pins may restrict the number of features that can be implemented
• Not suitable for high-voltage applications due to the specified supply voltage range

Working Principles

The ADM8699ARNZ is a voltage supervisor integrated circuit designed to monitor the voltage level of a power supply and generate a reset signal when the voltage falls below a certain threshold. It operates by comparing the supply voltage with an internally set reference voltage. If the supply voltage drops below the adjustable threshold voltage, the reset output is activated, indicating a power failure or unstable condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The ADM8699ARNZ is commonly used in various electronic systems where reliable voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontrollers: Ensuring proper operation by monitoring the power supply voltage and initiating a reset if necessary.
2. Industrial Control Systems: Providing fault detection and system recovery capabilities in critical control applications.
3. Automotive Electronics: Monitoring battery voltage to prevent damage due to undervoltage conditions and ensuring safe operation of vehicle systems.
4. Medical Devices: Ensuring stable power supply for critical medical equipment and triggering system resets in case of voltage fluctuations.
5. Communication Systems: Protecting sensitive circuitry from voltage variations and facilitating automatic recovery after power disturbances.

Detailed and Complete Alternative Models

• MAX809: Voltage supervisor with similar features and package options.
• LTC2937: Precision voltage monitor with adjustable threshold and timeout, available in different packages.
• TPS3839: Ultra-low-power voltage supervisor with fixed threshold voltage and small form factor package.

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