Overview
The MC33064D-005, 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 use of 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, making it suitable for a variety of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Input Supply Voltage | -1.0 to 10 | V |
| Reset Output Voltage | 10 | V |
| Reset Output Sink Current | Internally Limited | mA |
| Clamp Diode Forward Current | 100 | mA |
| Operating Junction Temperature | +150 | °C |
| Operating Ambient Temperature | 0 to +70 (MC34064), -40 to +85 (MC33064), -40 to +125 (NCV33064) | °C |
| Storage Temperature Range | -65 to +150 | °C |
| Comparator Threshold Voltage (High State Output) | 4.61 | V |
| Comparator Hysteresis | 0.01 to 0.05 | V |
| Output Sink Saturation (Vin = 4.0 V, ISink = 8.0 mA) | 0.46 | V |
| Quiescent Input Current (Vin = 5.0 V) | 390 to 500 | μA |
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
- 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 surface mount packages (TO-226AA, SO-8, Micro-8, SOT-23/TSOP-5)
- Pb-free packages available
Applications
The MC33064D-005 is used in various 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 MC33064D-005?
The MC33064D-005 is an undervoltage sensing circuit designed as a reset controller in microprocessor-based systems.
- What is the minimum input voltage for guaranteed reset operation?
The device guarantees reset operation with an input voltage as low as 1.0 V.
- What is the comparator threshold voltage at 25°C?
The comparator threshold voltage is 4.6 V at 25°C.
- What is the maximum reset output sink current?
The reset output is capable of sinking in excess of 10 mA.
- What types of packages are available for the MC33064D-005?
The device is available in TO-226AA, SO-8, Micro-8, and SOT-23/TSOP-5 surface mount packages.
- Is the MC33064D-005 Pb-free and RoHS compliant?
- What are the operating temperature ranges for the MC33064D-005?
The operating temperature ranges are 0 to +70°C for MC34064, -40 to +85°C for MC33064, and -40 to +125°C for NCV33064.
- What is the quiescent input current at 5.0 V input voltage?
The quiescent input current is between 390 to 500 μA at 5.0 V input voltage.
- Is the MC33064D-005 suitable for automotive applications?
- What is the purpose of the internal clamp diode?
The internal clamp diode is used for discharging the delay capacitor.
