Overview
The MC33064P-005, 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 the use of 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 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
| Rating | 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 |
| Quiescent Input Current (Vin = 5.0 V) | Iin | 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 packaging options including TO-92, SOIC-8, Micro8, and TSOP-5 surface mount packages
- Pb-free packages available
Applications
The MC33064P-005 is used in various applications including direct monitoring of the 5.0 V MPU/logic power supply in appliances, automotive, consumer, and industrial equipment.
Q & A
- What is the primary function of the MC33064P-005?
The MC33064P-005 is an undervoltage sensing circuit designed for use as a reset controller in microprocessor-based systems. - What is the minimum input voltage for guaranteed operation?
The device is guaranteed to operate down to 1.0 V input. - What is the reset output current capability?
The reset output is capable of sinking in excess of 10 mA. - What are the available packaging options for the MC33064P-005?
The device is available in TO-92, SOIC-8, Micro8, and TSOP-5 surface mount packages. - Is the MC33064P-005 Pb-free?
Yes, the MC33064P-005 is available in Pb-free packages. - What is the operating ambient temperature range for the MC33064P-005?
The operating ambient temperature range is −40°C to +85°C. - What is the purpose of the internal clamp diode?
The internal clamp diode is used for discharging the delay capacitor. - How does the comparator hysteresis function?
The comparator hysteresis prevents erratic reset operations by ensuring stable threshold detection. - What is the quiescent input current at 5.0 V input?
The quiescent input current is between 390 μA and 500 μA at 5.0 V input. - Can the MC33064P-005 be used in automotive applications?
Yes, the NCV prefix version of this device is suitable for automotive and other applications requiring site and change control.
