Overview
The MC33164P-5RP, produced by onsemi, is a micropower undervoltage sensing circuit designed for use as a reset controller in portable microprocessor-based systems. This device is particularly suited for applications where extended battery life is crucial. It offers an economical solution for low voltage detection with a single external resistor and features a bandgap reference, a comparator with precise thresholds, and built-in hysteresis to prevent erratic reset operations.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Input Supply Voltage | Vin | -1.0 | 12 | V | |
| Reset Output Voltage | VO | -1.0 | 12 | V | |
| Reset Output Sink Current | ISink | Internally Limited | mA | ||
| Threshold Voltage (High State Output, Vin Increasing) | VIH | 4.15 | 4.15 | 4.33 | V |
| Threshold Voltage (Low State Output, Vin Decreasing) | VIL | 4.27 | 4.27 | 4.45 | V |
| Hysteresis (ISink = 100 μA) | VH | 0.02 | 0.09 | V | |
| Output Sink Saturation (Vin = 4.0 V, ISink = 1.0 mA) | VOL | 0.1 | 0.4 | V | |
| Operating Input Voltage Range | Vin | 1.0 | 10 | V | |
| Quiescent Input Current (Vin = 5.0 V) | Iin | 12 | 20 | 50 | μA |
| Operating Ambient Temperature Range | TA | -40 | 125 | °C |
Key Features
- Temperature Compensated Reference: Ensures stable operation across various temperatures.
- Monitors 5.0 V Power Supplies: Specifically designed for monitoring 5.0 V power supplies in microprocessor and logic systems.
- Precise Comparator Thresholds Guaranteed Over Temperature: Provides reliable and consistent threshold voltages.
- Comparator Hysteresis Prevents Erratic Reset: Reduces the likelihood of false resets due to voltage fluctuations.
- Reset Output Capable of Sinking in Excess of 6.0 mA: Supports high current sink capability.
- Internal Clamp Diode for Discharging Delay Capacitor: Helps in managing the discharge of delay capacitors.
- Guaranteed Reset Operation With 1.0 V Input: Ensures the device functions correctly even at low input voltages.
- Extremely Low Standby Current: As Low as 9.0 μA: Minimizes power consumption, ideal for battery-powered devices.
- Economical Packaging Options: Available in TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
- Pb-Free and RoHS Compliant: Meets environmental and safety standards.
- NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes: Suitable for automotive and other critical applications.
Applications
The MC33164P-5RP is used in various applications including:
- Appliance Systems: Monitors power supplies in household and industrial appliances.
- Automotive Systems: Used in automotive electronics where robust and reliable operation is necessary.
- Consumer Electronics: Suitable for consumer devices that require low power consumption and reliable voltage monitoring.
- Industrial Equipment: Monitors power supplies in industrial control systems and other equipment.
Q & A
- What is the primary function of the MC33164P-5RP?
The MC33164P-5RP is an undervoltage sensing circuit designed to act as a reset controller in microprocessor-based systems.
- What are the typical threshold voltages for the MC33164P-5RP?
The threshold voltages are typically 4.15 V for the high state output and 4.27 V for the low state output.
- What is the maximum sink current capability of the reset output?
The reset output can sink in excess of 6.0 mA.
- What is the operating input voltage range for the MC33164P-5RP?
The device operates within an input voltage range of 1.0 V to 10 V.
- What is the quiescent input current of the MC33164P-5RP?
The quiescent input current is as low as 12 μA at 5.0 V input.
- What are the packaging options available for the MC33164P-5RP?
The device is available in TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
- Is the MC33164P-5RP Pb-Free and RoHS compliant?
Yes, the device is Pb-Free and RoHS compliant.
- What is the significance of the NCV prefix in the MC33164P-5RP?
The NCV prefix indicates that the device is suitable for automotive and other applications requiring site and control changes.
- What is the maximum operating ambient temperature for the MC33164P-5RP?
The device can operate in ambient temperatures ranging from -40°C to 125°C.
- How does the internal clamp diode function in the MC33164P-5RP?
The internal clamp diode helps in discharging delay capacitors, ensuring proper reset operation.
