Overview
The MC34064P-5RA, produced by onsemi, is an undervoltage sensing circuit designed specifically for use as a reset controller in microprocessor-based systems. This component offers an economical solution for low voltage detection with the simplicity of requiring only a single external resistor. It features a trimmed-in-package bandgap reference and a comparator with precise thresholds and built-in hysteresis to prevent erratic reset operations. The device is capable of operating down to 1.0 V input with low standby current and has an open collector reset output that can sink in excess of 10 mA.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Min | 1.0 V |
| Supply Voltage Max | 6.5 V |
| Reset Threshold Voltage | 4.59 V (Nominal) |
| Reset Type | Active-Low/Open Collector |
| No. of Monitored Voltages | 1 |
| Package Type | TO-92 (3-pin) |
| Operating Temperature Range | 0°C to +70°C |
| Standby Current | Low |
| Reset Output Current Capability | Exceeds 10 mA |
| RoHS Compliance | Yes |
Key Features
- Trimmed-in-package bandgap reference for precise voltage detection.
- Comparator with precise thresholds and built-in hysteresis to prevent erratic reset operations.
- Single external resistor required for operation.
- Open collector reset output capable of sinking in excess of 10 mA.
- Low standby current and operation guaranteed down to 1.0 V input.
- Available in various packages including TO-92, SOIC-8, Micro8, and TSOP-5.
Applications
The MC34064P-5RA is suitable for a variety of applications, including direct monitoring of the 5.0 V MPU/logic power supply in:
- Appliance equipment.
- Automotive systems.
- Consumer electronics.
- Industrial equipment.
Q & A
- What is the primary function of the MC34064P-5RA?
The MC34064P-5RA is primarily used as an undervoltage sensing circuit and reset controller in microprocessor-based systems. - What is the minimum supply voltage for the MC34064P-5RA?
The minimum supply voltage is 1.0 V. - What is the reset threshold voltage of the MC34064P-5RA?
The reset threshold voltage is nominally 4.59 V. - What type of reset output does the MC34064P-5RA have?
The reset output is Active-Low/Open Collector. - What is the maximum current capability of the reset output?
The reset output can sink in excess of 10 mA. - In what packages is the MC34064P-5RA available?
The device is available in TO-92, SOIC-8, Micro8, and TSOP-5 packages. - Is the MC34064P-5RA RoHS compliant?
Yes, the MC34064P-5RA is RoHS compliant. - What is the operating temperature range for the MC34064P-5RA?
The operating temperature range is 0°C to +70°C. - What is the purpose of the built-in hysteresis in the MC34064P-5RA?
The built-in hysteresis prevents erratic reset operations. - How many external resistors are required for the MC34064P-5RA to operate?
Only one external resistor is required for operation.
