Overview
The ADM809SART-REEL7 is a microprocessor supervisory circuit produced by Analog Devices Inc. This component is designed to monitor the power supply voltage in microprocessor systems, ensuring reliable operation during power-up, power-down, and brownout conditions. It provides a reset output to hold the microprocessor in a reset state until the power supply has stabilized.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage (VCC) | 2.5 V to 6 V | |
| Reset Threshold Voltage | 2.93 V | For ADM809SART model |
| Power Consumption | 17 μA | |
| Reset Active Timeout Period | 30 ms to 80 ms | TA = −40°C to +150°C |
| Reset Output Type | Active Low, Push-Pull | |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) | |
| Reset Output Voltage High | 0.8 VCC (VCC > VTH max, ISOURCE = 500 μA) | |
| Operating Temperature | −40°C to +125°C | |
| Package Type | SOT-23-3 |
Key Features
- Precision voltage monitoring with reset threshold options suitable for various supply voltages.
- Low power consumption of 17 μA, making it suitable for low power and portable equipment.
- Reset output remains operational with VCC as low as 1 V.
- Internal timer holds reset asserted for a minimum of 30 ms to ensure stable power-up conditions.
- Built-in glitch immunity to protect against fast transients on VCC.
- Available in SOT-23 and SC70 packages.
- Push-pull reset output for reliable signaling.
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Automotive systems
Q & A
- What is the primary function of the ADM809SART-REEL7?
The primary function is to monitor the power supply voltage in microprocessor systems and provide a reset output during power-up, power-down, and brownout conditions.
- What is the reset threshold voltage for the ADM809SART model?
The reset threshold voltage for the ADM809SART model is 2.93 V.
- How much power does the ADM809SART-REEL7 consume?
The component consumes 17 μA.
- What is the minimum reset active timeout period?
The minimum reset active timeout period is 30 ms.
- What type of reset output does the ADM809SART-REEL7 provide?
The component provides an active low, push-pull reset output.
- At what voltage does the reset output remain operational?
The reset output remains operational with VCC as low as 1 V.
- What is the operating temperature range of the ADM809SART-REEL7?
The operating temperature range is −40°C to +125°C.
- In what package types is the ADM809SART-REEL7 available?
The component is available in SOT-23-3 and SC70 packages.
- Does the ADM809SART-REEL7 have built-in glitch immunity?
Yes, it has built-in glitch immunity to protect against fast transients on VCC.
- What are some common applications of the ADM809SART-REEL7?
Common applications include microprocessor systems, computers, controllers, intelligent instruments, and automotive systems.
