Overview
The ADM6315-46D3ARTZR7, produced by Analog Devices Inc., is a reliable voltage monitoring device designed to provide a robust power-on reset (POR) function. This IC is particularly useful in ensuring that microprocessor-based systems start up reliably and avoid dangerous or erroneous operations due to voltage fluctuations. The ADM6315 can monitor supply voltages from 2.5 V to 5 V in 100 mV increments, making it versatile for various voltage monitoring applications.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 2.5 V to 5 V |
| Supply Voltage Monitoring Increments | 100 mV |
| Package Type | SOT-143 |
| Manual Reset Input | Debounced, active low, ignores pulses < 100 ns, accepts pulses > 1 μs |
| Power-Down Reset Delay | Typically 35 μs for VCC falling at 1 mV/μs |
| RESET Active Timeout Period | Typically equal to the reset timeout period |
| Operating Temperature Range | -40°C to 125°C |
| Supply Current | Typically 5.5 μA at VCC = 5.5 V, 3 μA at VCC = 3 V, and 1 μA at VCC = 1 V |
Key Features
- Voltage Monitoring: Monitors supply voltages from 2.5 V to 5 V in 100 mV increments.
- Manual Reset: Includes a debounced manual reset input (MR) that ignores negative-going pulses faster than 100 ns and accepts pulses greater than or equal to 1 μs.
- Power-Down Reset Delay: Produces a reset in 35 μs typical when VCC is falling at 1 mV/μs, ensuring system reset before voltage falls below recommended levels.
- Transient Immunity: Good immunity from negative-going transients, making it suitable for noisy environments.
- Compact Packaging: Available in a cost-efficient and space-efficient SOT-143 package.
Applications
The ADM6315 is suitable for various applications requiring reliable power-on reset functions, including:
- Microprocessor-based systems to ensure reliable startup and avoid erroneous operations.
- Noisy environments where transient immunity is crucial.
- Systems requiring manual reset capabilities via a switch or digital circuit.
- General voltage monitoring applications where precise voltage thresholds are necessary.
Q & A
- What is the primary function of the ADM6315? The primary function of the ADM6315 is to provide a reliable power-on reset (POR) function for microprocessor-based systems.
- What is the voltage range monitored by the ADM6315? The ADM6315 monitors supply voltages from 2.5 V to 5 V in 100 mV increments.
- What is the purpose of the manual reset input (MR) on the ADM6315? The manual reset input allows the system operator to reset the system manually via a switch or for a digital circuit to reset the system.
- How does the ADM6315 handle transient voltages? The ADM6315 has good immunity from negative-going transients, making it suitable for use in noisy environments.
- What is the typical power-down reset delay of the ADM6315? The typical power-down reset delay is 35 μs when VCC is falling at 1 mV/μs.
- What package type is the ADM6315 available in? The ADM6315 is available in a SOT-143 package.
- What is the operating temperature range of the ADM6315? The operating temperature range is -40°C to 125°C.
- How does the ADM6315 ensure reliable system startup? The ADM6315 ensures reliable system startup by providing a reset signal that remains active for a period equal to the reset timeout period, allowing the system to power up correctly and for the power supply to stabilize.
- Can the ADM6315 be used in noisy environments? Yes, the ADM6315 is suitable for use in noisy environments due to its good transient immunity.
- What is the supply current of the ADM6315 at different VCC levels? The supply current is typically 5.5 μA at VCC = 5.5 V, 3 μA at VCC = 3 V, and 1 μA at VCC = 1 V.
