Overview
The ADM706RAR-REEL7, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to monitor and manage power supply conditions for microprocessors. This component is part of the ADM706 series, which includes various models with different reset threshold levels. The ADM706RAR-REEL7 is specifically tailored for monitoring 3 V or 3.3 V power supplies, ensuring reliable operation during power-up, power-down, and brownout conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| VCC Operating Voltage Range | 1.0 | 5.5 | V | ||
| Supply Current | 100 | 250 | 600 | µA | VRST (max) < VCC < 3.6 V and 4.5 V < VCC < 5.5 V |
| Reset Threshold | 2.63 | V | For ADM706R and ADM706P models | ||
| Reset Pulse Width | 160 | 200 | 280 | ms | |
| Watchdog Timer Timeout | 1.6 | sec | |||
| Power Fail Input Threshold | 1.2 | 1.25 | 1.3 | V | |
| Operating Temperature Range | -40 | 85 | °C | Industrial (Version A) |
Key Features
- Precision Supply Voltage Monitoring: The ADM706RAR-REEL7 monitors power supplies with precision, offering reset thresholds of 2.63 V, 2.93 V, and 3.08 V for different models.
- Low Quiescent Current: The device operates with a quiescent current of 100 µA to 250 µA, depending on the VCC range.
- Independent Watchdog Timer: An independent watchdog timer with a 1.6-second timeout ensures the microprocessor's activity is monitored, and a reset is generated if the watchdog input does not toggle within this period.
- Power Fail Warning: A 1.25 V threshold detector provides power fail warnings, low battery detection, or monitoring of an additional power supply.
- Manual Reset Input: The device includes an active low debounced manual reset input (MR) that can be driven from TTL, CMOS logic, or a manual reset switch.
- Dual Reset Outputs: Some models provide both active high and active low reset outputs, ensuring flexibility in system design.
Applications
- Microprocessor Systems: The ADM706RAR-REEL7 is ideal for monitoring and managing power supply conditions in microprocessor-based systems, ensuring reliable operation during various power conditions.
- Embedded Systems: Suitable for use in embedded systems that require precise power supply monitoring and reset functionality.
- Low Power Devices: The low quiescent current makes it suitable for battery-powered devices and other low-power applications.
- Industrial and Automotive Systems: The device's operating temperature range of -40°C to +85°C makes it suitable for industrial and automotive applications.
Q & A
- What is the primary function of the ADM706RAR-REEL7?
The primary function is to monitor power supply conditions and generate reset outputs during power-up, power-down, and brownout conditions.
- What are the reset threshold levels available for the ADM706 series?
The reset threshold levels are 2.63 V, 2.93 V, and 3.08 V for different models.
- What is the quiescent current of the ADM706RAR-REEL7?
The quiescent current ranges from 100 µA to 250 µA depending on the VCC range.
- Does the ADM706RAR-REEL7 have a watchdog timer?
- What is the purpose of the power fail input (PFI)?
The PFI is used for power fail warnings, low battery detection, or monitoring an additional power supply.
- Can the manual reset input (MR) be driven from different logic types?
- What are the available reset output configurations?
- What is the operating temperature range of the ADM706RAR-REEL7?
- What packages are available for the ADM706 series?
- Is the ADM706RAR-REEL7 suitable for industrial applications?
