Overview
The ADM693AARNZ is a voltage supervisory circuit produced by Analog Devices Inc. This IC is designed to ensure reliable operation of microprocessors by monitoring voltage levels and providing appropriate control signals. It features a powerful watchdog timer, battery backup switching, and power fail detection, making it a comprehensive solution for power supply monitoring and battery control in microprocessor systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Package | SOIC-16 | |
| Mounting Style | SMD/SMT | |
| Threshold Voltage | 4.4 V | V |
| Number of Inputs Monitored | 1 Input | |
| Output Type | Open Drain | |
| Manual Override | No Manual Reset | |
| Watchdog | Watchdog | |
| Battery Backup Switching | Backup | |
| Reset Delay Time | 200 ms | ms |
| Max Supply Voltage | 5.5 V | V |
| Minimum Operating Temperature | -40°C | °C |
| Maximum Operating Temperature | +85°C | °C |
| Current @ Pmpp | 100 uA | uA |
| Overvoltage Threshold | 4.5 V | V |
| Power Dissipation | 700 mW | mW |
| Power Fail Detection | Yes | |
| Supply Voltage - Min | 4.5 V | V |
| Undervoltage Threshold | 4.25 V | V |
Key Features
- Precision Voltage Monitoring: The ADM693AARNZ offers precise voltage monitoring with a threshold voltage of 4.4V ± 3%.
- Watchdog Timer: Features a watchdog timer with a reset delay time of 200 ms or adjustable.
- Battery Backup Switching: Automatic battery backup switching ensures continuous operation during power failures.
- Low Power Consumption: Operates with a low standby current of 100 uA.
- Chip Enable Signals: Includes fast onboard gating of chip enable signals.
- Power Fail Detection: Detects power failures and provides a power fail output signal).
Applications
- Microprocessor Systems: Ideal for monitoring and controlling microprocessor systems to prevent unexpected failures and malfunctions).
- Computers and Controllers: Suitable for use in computer systems, industrial controllers, and other critical control systems).
- Automotive Systems: Used in automotive systems where reliable power monitoring is crucial).
- Intelligent Instruments: Applicable in intelligent instruments that require precise voltage monitoring and control).
Q & A
- What is the primary function of the ADM693AARNZ?
The primary function of the ADM693AARNZ is to monitor voltage levels and provide appropriate control signals to ensure reliable operation of microprocessors.
- What is the threshold voltage for the ADM693AARNZ?
The threshold voltage for the ADM693AARNZ is 4.4 V ± 3%.
- What type of package does the ADM693AARNZ come in?
The ADM693AARNZ comes in a SOIC-16 package.
- Does the ADM693AARNZ have a watchdog timer?
Yes, the ADM693AARNZ features a watchdog timer with a reset delay time of 200 ms or adjustable.
- What is the maximum operating temperature for the ADM693AARNZ?
The maximum operating temperature for the ADM693AARNZ is +85°C.
- Does the ADM693AARNZ support battery backup switching?
Yes, the ADM693AARNZ supports automatic battery backup switching.
- What is the minimum supply voltage for the ADM693AARNZ?
The minimum supply voltage for the ADM693AARNZ is 4.5 V.
- Does the ADM693AARNZ have power fail detection?
Yes, the ADM693AARNZ includes power fail detection and provides a power fail output signal.
- What are some common applications for the ADM693AARNZ?
The ADM693AARNZ is commonly used in microprocessor systems, computers, controllers, automotive systems, and intelligent instruments.
- What is the typical current consumption of the ADM693AARNZ?
The typical current consumption of the ADM693AARNZ is 100 uA.
