Overview
The MC34064D-5R2G, produced by onsemi, is an undervoltage sensing circuit designed specifically for use as a reset controller in microprocessor-based systems. It provides an economical solution for low voltage detection with a single external resistor. The device features a trimmed-in-package bandgap reference and a comparator with precise thresholds and built-in hysteresis to prevent erratic reset operations. It is available in various packages, including SOIC-8, and is suitable for a wide range of applications, including appliance, automotive, consumer, and industrial equipment.
Key Specifications
| Parameter | 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 | 10 | Internally Limited | mA | |
| Clamp Diode Forward Current, Reset to Input Pin | IF | 100 | mA | ||
| Operating Input Voltage Range | Vin | 1.0 | 6.5 | V | |
| Quiescent Input Current (Vin = 5.0 V) | Iin | 390 | 500 | μA | |
| Comparator Threshold Voltage (High State Output) | VIH | 4.59 | 4.61 | 4.7 | V |
| Comparator Threshold Voltage (Low State Output) | VIL | 4.5 | 4.59 | 4.7 | V |
| Hysteresis | VH | 0.01 | 0.02 | 0.05 | V |
| 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 packaging options including 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 MC34064D-5R2G is suitable for 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 MC34064D-5R2G? The MC34064D-5R2G is an undervoltage sensing circuit designed to act as a reset controller in microprocessor-based systems.
- What are the key features of the MC34064D-5R2G? Key features include a trimmed-in-package bandgap reference, precise comparator thresholds with hysteresis, and an open collector reset output capable of sinking over 10 mA.
- What are the operating temperature ranges for the MC34064D-5R2G? The operating ambient temperature range is 0°C to +70°C, and the storage temperature range is -65°C to +150°C.
- What is the maximum power input supply voltage for the MC34064D-5R2G? The maximum power input supply voltage is 10 V.
- Is the MC34064D-5R2G RoHS compliant? Yes, the MC34064D-5R2G is Pb-free and RoHS compliant.
- What are the typical applications of the MC34064D-5R2G? Typical applications include monitoring power supplies in appliances, automotive systems, consumer electronics, and industrial equipment.
- What is the significance of the NCV prefix in some versions of this device? The NCV prefix is used for automotive and other applications requiring site and change control.
- How does the MC34064D-5R2G prevent erratic reset operations? The device features built-in hysteresis in the comparator to prevent erratic reset operations.
- What is the quiescent input current of the MC34064D-5R2G at 5.0 V input? The quiescent input current is typically 390 μA and maximally 500 μA at 5.0 V input.
- What are the packaging options available for the MC34064D-5R2G? The device is available in TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
