Overview
The MC33064P-5RA, produced by onsemi, is a processor supervisor and undervoltage sensing circuit designed for use as a reset controller in microprocessor-based systems. This component is part of the supervisory circuits category within the power management segment. It offers an economical solution for low voltage detection with a single external resistor and features a trimmed-in-package bandgap reference and a comparator with precise thresholds and built-in hysteresis to prevent erratic reset operations.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Power Input Supply Voltage | Vin | -1.0 to 10 | V |
| Reset Output Voltage | VO | 10 | V |
| Reset Output Sink Current | ISink | Internally Limited | mA |
| Clamp Diode Forward Current, Reset to Input Pin | IF | 100 | mA |
| Operating Junction Temperature | TJ | +150 | °C |
| Operating Ambient Temperature | TA | -40 to +85 | °C |
| Storage Temperature Range | Tstg | -65 to +150 | °C |
| Maximum Reset Threshold Voltage | VH | 4.61 | V |
| Typical Reset Threshold Voltage | VIL | 4.59 | V |
| Hysteresis | VH - VIL | 0.02 | V |
| Package Type | TO-92 |
Key Features
- Trimmed-in-package temperature-compensated reference.
- Comparator threshold of 4.6 V at 25°C with precise thresholds guaranteed over temperature.
- Comparator hysteresis to prevent erratic reset operations.
- Reset output capable of sinking in excess of 10 mA.
- Internal clamp diode for discharging delay capacitor.
- Guaranteed reset operation with 1.0 V input.
- Low standby current.
- Economical TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
- Pb-free and RoHS compliant.
Applications
The MC33064P-5RA is suitable for various applications, including:
- Direct monitoring of the 5.0 V MPU/logic power supply in microprocessor-based systems.
- Appliance, automotive, consumer, and industrial equipment.
- Systems requiring reliable undervoltage detection and reset functionality.
Q & A
- What is the primary function of the MC33064P-5RA?
The MC33064P-5RA is an undervoltage sensing circuit designed as a reset controller in microprocessor-based systems.
- What is the operating temperature range of the MC33064P-5RA?
The operating ambient temperature range is -40°C to +85°C.
- What is the maximum power dissipation at 25°C for the TO-92 package?
The maximum power dissipation at 25°C is 625 mW, with a thermal resistance of 200°C/W.
- What is the reset threshold voltage of the MC33064P-5RA?
The typical reset threshold voltage is 4.59 V, with a maximum of 4.61 V and a hysteresis of 0.02 V.
- Is the MC33064P-5RA Pb-free and RoHS compliant?
- What types of packages are available for the MC33064P-5RA?
The component is available in TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
- What is the minimum input voltage for guaranteed reset operation?
The guaranteed reset operation is down to 1.0 V input.
- What is the maximum reset output sink current?
The reset output is capable of sinking in excess of 10 mA.
- Does the MC33064P-5RA have an internal clamp diode?
- What are the typical applications of the MC33064P-5RA?
It is used in appliance, automotive, consumer, and industrial equipment for monitoring power supplies.
