Overview
The ADM6315-26D3ARTZR7, produced by Analog Devices Inc., is a microprocessor supervisory circuit designed to ensure the reliable operation of microprocessor-based systems during power-up, power-down, and brownout conditions. This component integrates a precise voltage monitoring system and a reset circuit to protect the system from malfunctioning due to power supply voltage degradations.
Key Specifications
| Parameter | Value |
|---|---|
| Monitored Supply Voltage Range | 2.5 V to 5 V (at 100 mV increments) |
| RESET Active Timeout Period | 140 ms to 280 ms (TA = −40°C to +85°C), 112 ms to 336 ms (TA = −40°C to +125°C) for D3 version |
| Manual Reset Input Threshold | 0.3 × VCC (VIL), 0.7 × VCC (VIH) for VTH < 4 V; 0.8 V (VIL), 2.4 V (VIH) for VTH > 4 V |
| Minimum Input Pulse | 1 μs |
| Glitch Rejection | 100 ns |
| Pull-Up Resistance | 32 kΩ to 100 kΩ |
| RESET Output | Open-drain output, can sink current from sources with voltage greater than VCC |
| Package | SOT-143-4 |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Precise Voltage Monitoring: The ADM6315 can monitor supply voltages with a precision of as little as 1.8% degradation, ensuring reliable system operation.
- RESET Output: The open-drain RESET output allows it to sink current from sources with a voltage greater than the VCC of the ADM6315, enhancing its versatility.
- Manual Reset Input: The MR input can be used for manual or digital circuit-initiated resets, ignoring pulses faster than 100 ns.
- Fast Reset Response: Produces a reset in 35 μs typical during brownout conditions, protecting the system from voltage drops below recommended levels.
- Power-Up and Power-Down Protection: Ensures proper system initialization and shutdown by maintaining the RESET output low during power-up and power-down phases.
Applications
- Microprocessor-Based Systems: Ideal for ensuring reliable startup and operation in microprocessor-based systems.
- Embedded Systems: Suitable for use in embedded systems that require precise voltage monitoring and reset capabilities.
- Industrial Control Systems: Used in industrial control systems to protect against power failures and brownout conditions.
- Automotive Electronics: Can be used in automotive electronics where robust power management is critical.
Q & A
- What is the primary function of the ADM6315-26D3ARTZR7? The primary function is to monitor the supply voltage and provide a reset signal to ensure the reliable operation of microprocessor-based systems during power-up, power-down, and brownout conditions.
- What is the monitored supply voltage range of the ADM6315? The monitored supply voltage range is from 2.5 V to 5 V at 100 mV increments.
- How does the manual reset input work? The manual reset input (MR) can be used for manual or digital circuit-initiated resets and ignores pulses faster than 100 ns.
- What is the typical reset response time during brownout conditions? The typical reset response time during brownout conditions is 35 μs.
- What is the operating temperature range of the ADM6315? The operating temperature range is −40°C to +125°C.
- What type of package does the ADM6315-26D3ARTZR7 come in? It comes in a SOT-143-4 package.
- How does the RESET output work? The RESET output is an open-drain output that can sink current from sources with a voltage greater than the VCC of the ADM6315.
- What is the significance of the precise voltage monitoring capability of the ADM6315? The precise voltage monitoring capability ensures that the system operates reliably even with small degradations in the power supply voltage.
- Can the ADM6315 be used in automotive electronics? Yes, it can be used in automotive electronics where robust power management is critical.
- What is the typical pull-up resistance of the manual reset input? The typical pull-up resistance is between 32 kΩ and 100 kΩ.
