Overview
The ADM695ARZ-REEL, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to provide comprehensive power supply monitoring and battery control functions. This device is part of the ADM690-ADM695 family and is particularly suited for applications requiring robust power management and supervision. The ADM695ARZ-REEL is available in a 16-pin SOIC package and is RoHS compliant, making it suitable for a wide range of automotive and industrial applications.
Key Specifications
| Parameter | Min | Typ | Max | Units | Test Conditions/Comments |
|---|---|---|---|---|---|
| VCC Operating Voltage Range | 4.75 | 5.5 | V | ||
| VBATT Operating Voltage Range | 2.0 | 4.25 | V | ||
| VOUT Output Voltage | VCC - 0.05 | VCC - 0.025 | VCC - 0.5 | V | IOUT = 1 mA, IOUT ≤ 100 mA |
| Supply Current (Excludes IOUT) | 1 | 1.95 | mA | ||
| Supply Current in Battery Backup Mode | 0.6 | 1 | µA | VCC = 0 V, VBATT = 2.8 V | |
| Battery Standby Current | -0.1 | +0.02 | µA | TA = +25°C, 5.5 V > VCC > VBATT + 0.2 V | |
| Battery Switchover Threshold | 70 | mV | |||
| Reset Pulse Width | 200 | ms | |||
| Watchdog Timeout Period | 100 ms, 1.6 s, ADJ |
Key Features
- Power Supply Monitoring: The ADM695ARZ-REEL includes voltage detectors for monitoring the power supply, ensuring the system operates within safe voltage limits.
- Battery Backup Switching: The device features an automatic battery switchover circuit that connects the output to either the main power supply or the battery, depending on which is higher.
- Watchdog Timer: The watchdog timer monitors the system for malfunctions and can reset the system if the watchdog input does not transition within the specified timeout period.
- Reset Output: Provides active high or active low reset outputs, and push-pull configurations, offering flexibility in system design.
- Low Power Consumption: The device has a low supply current, especially in battery backup mode, making it energy-efficient.
- RoHS Compliance: The ADM695ARZ-REEL is RoHS compliant, ensuring it meets environmental standards.
Applications
The ADM695ARZ-REEL is suitable for various applications, including:
- Automotive Systems: Due to its robust design and automotive-grade specifications, it is ideal for use in automotive electronics.
- Industrial Control Systems: The device's ability to monitor and manage power supplies makes it a good fit for industrial control systems.
- Embedded Systems: It can be used in embedded systems that require reliable power supply monitoring and battery backup functions.
- Telecommunications Equipment: The ADM695ARZ-REEL can be used in telecommunications equipment to ensure reliable operation and power management.
Q & A
- What is the primary function of the ADM695ARZ-REEL?
The primary function of the ADM695ARZ-REEL is to provide power supply monitoring and battery control functions for microprocessors. - What is the operating voltage range for VCC?
The operating voltage range for VCC is 4.75V to 5.5V. - What is the battery switchover threshold?
The battery switchover threshold is 70 mV. - How does the watchdog timer function?
The watchdog timer monitors the system for malfunctions and resets the system if the watchdog input does not transition within the specified timeout period. - What are the available reset output configurations?
The device provides active high, active low, and push-pull reset output configurations. - Is the ADM695ARZ-REEL RoHS compliant?
Yes, the ADM695ARZ-REEL is RoHS compliant. - What is the typical reset pulse width?
The typical reset pulse width is 200 ms. - How does the battery backup switching work?
The device automatically switches the output to either the main power supply or the battery, depending on which is higher. - What is the supply current in battery backup mode?
The supply current in battery backup mode is typically 0.6 µA to 1 µA. - What are some common applications for the ADM695ARZ-REEL?
Common applications include automotive systems, industrial control systems, embedded systems, and telecommunications equipment.
