Overview
The LM3724IM5-3.08/NOPB is a microprocessor supervisory circuit produced by Texas Instruments. This device is designed to monitor power supplies in microprocessor and digital systems, ensuring reliable operation during power-up, power-down, and brownout conditions. It provides a precise reset signal to the microprocessor, preventing code execution errors under various power conditions.
Key Specifications
| Parameter | Value |
|---|---|
| Reset Threshold Voltage | 3.08V |
| Supply Voltage Range | 1.0V to 5.5V |
| Supply Current (Typical) | 6µA |
| Reset Output Type | Active-Low Open Drain |
| Reset Timeout Period | 100ms (minimum), 190ms (typical) |
| Operating Temperature Range | −40°C to +85°C |
| Package Type | SOT-23-5 |
| ESD Rating | 2kV (Human Body Model) |
Key Features
- Precise monitoring of 3.3V supply voltage
- Fully specified over temperature range: −40°C to +85°C
- 100ms minimum power-on reset pulse width, 190ms typical
- Active-low open-drain RESET output
- Low supply current of 6µA typical
- Power supply transient immunity
- Manual reset input (MR) with internal 22kΩ pull-up
- Guaranteed RESET output valid for VCC ≥ 1V
Applications
- Microprocessor systems
- Computers
- Controllers
- Intelligent instruments
- Portable and battery-powered equipment
Q & A
- What is the primary function of the LM3724IM5-3.08/NOPB? The primary function is to monitor the power supply and provide a reset signal to the microprocessor during power-up, power-down, and brownout conditions.
- What are the available reset threshold voltages for the LM3722/LM3723/LM3724 series? The available reset threshold voltages are 4.63V, 3.08V, and 2.32V.
- What is the typical supply current of the LM3724IM5-3.08/NOPB? The typical supply current is 6µA.
- What type of RESET output does the LM3724IM5-3.08/NOPB have? The LM3724IM5-3.08/NOPB has an active-low open-drain RESET output.
- What is the minimum power-on reset pulse width? The minimum power-on reset pulse width is 100ms.
- What is the operating temperature range of the LM3724IM5-3.08/NOPB? The operating temperature range is −40°C to +85°C.
- What is the package type of the LM3724IM5-3.08/NOPB? The package type is SOT-23-5.
- Does the LM3724IM5-3.08/NOPB have manual reset capability? Yes, it has a manual reset input (MR) with an internal 22kΩ pull-up.
- What is the ESD rating of the LM3724IM5-3.08/NOPB? The ESD rating is 2kV (Human Body Model).
- Is the RESET output valid at low VCC levels? Yes, the RESET output is guaranteed valid for VCC ≥ 1V.
