Overview
The ADM803LAKSZ-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 stable 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 | 4.63 V | - |
| Temperature Range | -40°C to +125°C | - |
| Package Type | 3-Lead SC70 | - |
| Power Consumption | 17 μA | - |
| Reset Output Type | Active Low, Open-Drain | - |
| Reset Assertion Time | 240 ms | On power-up |
| VCC Operating Range | 1 V to 6 V | - |
| Output Current (RESET) | 20 mA | - |
| Thermal Impedance (θJA) | See datasheet for specific values | - |
Key Features
- Precision voltage monitoring with seven reset threshold voltage options (e.g., 2.5 V, 3 V, 3.3 V, 5 V).
- Low power consumption of 17 μA, making it suitable for low power, portable equipment.
- Reset output remains operational with VCC as low as 1 V.
- Internal timer holds reset asserted for 240 ms on power-up.
- Open-drain RESET output requires an external pull-up resistor.
- Glitch immunity built into the reset comparator.
- Available in 3-lead SC70 package.
Applications
- Microprocessor systems.
- Computers.
- Controllers.
- Intelligent instruments.
Q & A
- What is the primary function of the ADM803LAKSZ-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 ADM803LAKSZ-REEL7? The reset threshold voltage is 4.63 V.
- What is the temperature range for the ADM803LAKSZ-REEL7? The temperature range is -40°C to +125°C.
- What type of package does the ADM803LAKSZ-REEL7 come in? It comes in a 3-lead SC70 package.
- How much power does the ADM803LAKSZ-REEL7 consume? It consumes 17 μA.
- What type of reset output does the ADM803LAKSZ-REEL7 have? It has an active low, open-drain reset output.
- How long does the internal timer hold the reset asserted on power-up? The internal timer holds the reset asserted for 240 ms on power-up.
- Is the reset output operational at low VCC levels? Yes, the reset output remains operational with VCC as low as 1 V.
- Does the ADM803LAKSZ-REEL7 have built-in glitch immunity? Yes, it has built-in glitch immunity in the reset comparator.
- In what types of systems is the ADM803LAKSZ-REEL7 typically used? It is typically used in microprocessor systems, computers, controllers, and intelligent instruments.
