Overview
The ADM809TART-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 stabilizes.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Reset Threshold Voltage | Multiple options (e.g., 2.28V to 4.63V) | Varying temperature ranges |
| Reset Output Type | Active Low | - |
| Output Configuration | Push-Pull | - |
| Supply Current | 17 μA | VCC = 5V |
| Reset Active Timeout Period | 240 ms (typical) | TA = -40°C to +85°C |
| Reset Output Voltage Low | 0.3 V (VCC = VTH min, ISINK = 1.2 mA) | - |
| Package Type | 3-Lead SOT-23 and 3-Lead SC70 | - |
| Operating Temperature Range | -40°C to +125°C | - |
Key Features
- Monitors power supply voltage to ensure microprocessor stability during power-up, power-down, and brownout conditions.
- Provides an active low reset signal to hold the microprocessor in a reset state until power supply stabilizes.
- Internal timer holds reset asserted for 240 ms during power-up.
- Push-pull output configuration.
- Low supply current of 17 μA, making it suitable for low power, portable equipment.
- Built-in glitch immunity to protect against fast transients on VCC.
- Multiple reset threshold voltage options available.
Applications
- Microprocessor systems requiring power supply monitoring and reset control.
- Low power, portable equipment such as handheld devices and battery-powered systems.
- Embedded systems where reliable power-up and power-down sequences are critical.
- Industrial control systems and automation equipment.
Q & A
- What is the primary function of the ADM809TART-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 type of reset output does the ADM809TART-REEL7 provide?
The ADM809TART-REEL7 provides an active low reset signal.
- What is the typical reset active timeout period for the ADM809TART-REEL7?
The typical reset active timeout period is 240 ms.
- What is the supply current of the ADM809TART-REEL7?
The supply current is 17 μA.
- What package types are available for the ADM809TART-REEL7?
The component is available in 3-Lead SOT-23 and 3-Lead SC70 packages.
- What is the operating temperature range of the ADM809TART-REEL7?
The operating temperature range is -40°C to +125°C.
- Does the ADM809TART-REEL7 have built-in glitch immunity?
- What are some common applications for the ADM809TART-REEL7?
- How many reset threshold voltage options are available for the ADM809TART-REEL7?
- What is the reset output voltage low for the ADM809TART-REEL7?
