Overview
The MC33064LP is an undervoltage sensing circuit designed and manufactured by Microsemi Corporation. This component is specifically intended for use as a reset controller in microprocessor-based systems. Although the MC33064LP is currently listed as obsolete, it remains a significant component in legacy systems and designs requiring low supply voltage detection.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Microsemi Corporation |
| Part Number | MC33064LP |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Packaging | Tape & Box (TB) |
| Part Status | Obsolete |
| Function | Undervoltage Sensing Circuit |
| RESET Output | Open collector output, capable of sinking up to 60mA |
| VIN Range | RESET output fully functional at VIN=1V |
| Comparator Hysteresis | Temperature stable reference comparator with hysteresis |
| Delay Time | Programmable delay time with the addition of a capacitor |
Key Features
- Undervoltage Detection: Designed for low supply voltage detection in microprocessor-based systems.
- Glitch-Free Supply Current: Maintains stable supply current during undervoltage detection, unlike competing products.
- Programmable Delay Time: Allows for adjustable delay time after power returns with the addition of a capacitor.
- High-Current Clamping Diode: Includes a high-current clamping diode for protection.
- Comparator Hysteresis: Features a temperature stable reference comparator with adjustable hysteresis using an external resistor.
Applications
The MC33064LP is suitable for various microprocessor-based systems that require reliable undervoltage sensing and reset control. These applications include:
- Embedded systems requiring power monitoring and reset functionality.
- Industrial control systems where stable voltage detection is crucial.
- Automotive electronics that need robust undervoltage sensing.
- Medical devices requiring precise voltage monitoring and reset capabilities.
Q & A
- What is the primary function of the MC33064LP?
The MC33064LP is an undervoltage sensing circuit designed for use as a reset controller in microprocessor-based systems. - Why is the MC33064LP listed as obsolete?
The MC33064LP is no longer manufactured by Microsemi Corporation, although it may still be used in legacy systems. - What package types are available for the MC33064LP?
The MC33064LP is available in TO-226-3 and TO-92-3 (TO-226AA) packages. - How does the MC33064LP handle supply current during undervoltage detection?
The MC33064LP maintains a stable, glitch-free supply current during undervoltage detection. - Can the delay time after power returns be adjusted?
Yes, the delay time can be adjusted by adding a capacitor. - What is the maximum current the RESET output can sink?
The RESET output can sink up to 60mA. - At what input voltage is the RESET output fully functional?
The RESET output is fully functional at VIN=1V. - How can the comparator hysteresis be adjusted?
The comparator hysteresis can be adjusted by adding an external resistor (R_H). - What types of systems can benefit from using the MC33064LP?
Embedded systems, industrial control systems, automotive electronics, and medical devices can benefit from using the MC33064LP. - Where can I find detailed specifications for the MC33064LP?
Detailed specifications can be found in the datasheet available from sources like Digi-Key, AllDataSheet, or the official Microsemi documentation.
