Overview
The ADM811-3TARTZ-RL7 is a voltage monitoring device produced by Analog Devices Inc. It is part of the ADM811/ADM812 series, designed to provide reliable voltage monitoring and reset functions in various electronic systems. This device is particularly useful in applications requiring precise voltage supervision and system reset capabilities.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| VCC Monitored Supply Voltage | 2.5 | 5 | V | Recommended 0.1 μF decoupling capacitor between VCC and GND | |
| RESET Threshold Temperature Coefficient | 30 | ppm/°C | |||
| RESET Active Timeout Period | 140 | 300 | 560 | ms | VCC = VTH(MAX) |
| Manual Reset Minimum Pulse Width | 10 | μs | |||
| Glitch Immunity | 100 | ns | |||
| RESET/RESET Propagation Delay | 0.5 | μs | |||
| Pull-Up Resistance | 10 | 30 | kΩ | ||
| Operating Temperature Range | -40 | 85 | °C |
Key Features
- Debounced manual reset input, ignoring pulses of 100 ns or less and accepting pulses greater than 10 μs.
- Active high logic output with reset remaining high while VCC is below the reset threshold or when MR is low.
- Compatible with various microcontroller systems and surface mount compatible with standard PCB technology.
- Cable drop compensation and current limit switches.
- Low supply current, making it suitable for power-sensitive applications.
Applications
- Digital power system management.
- Power monitors and supervisory circuits.
- Hot swap controllers and ideal diode bridges.
- Energy monitors and power-over-Ethernet (PoE) interface controllers.
- General voltage monitoring applications in microcontroller systems.
Q & A
- What is the primary function of the ADM811-3TARTZ-RL7?
The primary function is to provide reliable voltage monitoring and system reset capabilities. - What are the supported supply voltages for the ADM811-3TARTZ-RL7?
The device supports supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. - What is the recommended decoupling capacitor for the VCC pin?
A 0.1 μF decoupling capacitor is recommended between VCC and GND. - What is the minimum pulse width for the manual reset input?
The minimum pulse width for the manual reset input is 10 μs. - What is the glitch immunity of the manual reset input?
The manual reset input ignores pulses of 100 ns or less. - What is the operating temperature range of the ADM811-3TARTZ-RL7?
The operating temperature range is from -40°C to +85°C. - Is the ADM811-3TARTZ-RL7 RoHS compliant?
Yes, the device is RoHS compliant. - What type of logic output does the ADM811-3TARTZ-RL7 provide?
The device provides an active high logic output. - How long does the reset remain active after VCC rises above the reset threshold?
The reset remains active for 240 ms (typical) after VCC rises above the reset threshold. - What is the pull-up resistance range for the RESET/RESET output?
The pull-up resistance range is between 10 kΩ and 30 kΩ.
