Overview
The MC34064P-5RAG is an undervoltage sensing circuit produced by onsemi, specifically designed for use as a reset controller in microprocessor-based systems. This component offers an economical solution for low voltage detection with 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 operation. The device is packaged in a 3-pin TO-92 package and is Pb-free and RoHS compliant.
Key Specifications
| Characteristics | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Input Supply Voltage | Vin | -1.0 | 10 | V | |
| Reset Output Voltage | VO | 10 | V | ||
| Reset Output Sink Current | ISink | Internally Limited | mA | ||
| Comparator Threshold Voltage High State Output (Vin Increasing) | VIH | 4.5 | 4.61 | 4.7 | V |
| Comparator Threshold Voltage Low State Output (Vin Decreasing) | VIL | 4.5 | 4.59 | 4.7 | V |
| Hysteresis | VH | 0.01 | 0.02 | 0.05 | V |
| Output Sink Saturation (Vin = 4.0 V, ISink = 8.0 mA) | VOL | 0.46 | V | ||
| Operating Input Voltage Range | Vin | 1.0 | 6.5 | V | |
| Quiescent Input Current (Vin = 5.0 V) | Iin | 390 | 500 | μA | |
| Operating Ambient Temperature | TA | 0 | 70 | °C | |
| Storage Temperature Range | Tstg | -65 | 150 | °C |
Key Features
- Trimmed-in-package temperature compensated reference
- Comparator with precise thresholds and built-in hysteresis to prevent erratic reset operation
- Open collector reset output capable of sinking in excess of 10 mA
- Guaranteed reset operation with 1.0 V input and low standby current
- Internal clamp diode for discharging delay capacitor
- Economical TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages
- Pb-free and RoHS compliant
- NCV prefix for automotive and other applications requiring site and change control
Applications
The MC34064P-5RAG is used in various applications including:
- Direct monitoring of the 5.0 V MPU/logic power supply in appliances
- Automotive systems
- Consumer electronics
- Industrial equipment
Q & A
- What is the primary function of the MC34064P-5RAG?
The MC34064P-5RAG is an undervoltage sensing circuit designed for use as a reset controller in microprocessor-based systems.
- What types of packages are available for the MC34064?
The MC34064 is available in 3-pin TO-92, micro size TSOP-5, 8-pin SOIC-8, and Micro8 surface mount packages.
- What is the operating ambient temperature range for the MC34064P-5RAG?
The operating ambient temperature range for the MC34064P-5RAG is 0°C to +70°C.
- What is the minimum input voltage for guaranteed reset operation?
The minimum input voltage for guaranteed reset operation is 1.0 V.
- What is the maximum sink current of the reset output?
The reset output is capable of sinking in excess of 10 mA.
- Does the MC34064P-5RAG have built-in hysteresis?
- Is the MC34064P-5RAG Pb-free and RoHS compliant?
- What is the purpose of the NCV prefix in some versions of this device?
The NCV prefix is for automotive and other applications requiring site and change control.
- How can you achieve a time-delayed reset with the MC34064P-5RAG?
A time-delayed reset can be accomplished with the addition of a delay capacitor (CDLY) and an external resistor.
- What are some common applications of the MC34064P-5RAG?
