Overview
The MC33164D-3R2G is a micropower undervoltage sensing circuit designed by onsemi, specifically for use as a reset controller in portable microprocessor-based systems. This device is part of the MC34164 series and is optimized for applications requiring extended battery life. It features a temperature-compensated reference, precise comparator thresholds, and built-in hysteresis to prevent erratic reset operations. The MC33164D-3R2G is packaged in an SOIC-8 (Pb-Free) package and is suitable for a wide range of applications, including appliance, automotive, consumer, and industrial equipment.
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 |
| Clamp Diode Forward Current, Reset to Input Pin | IF | - | - | 100 | mA |
| Operating Input Voltage Range | Vin | 1.0 | - | 10 | V |
| Quiescent Input Current (Vin = 3.0 V) | Iin | - | 9.0 | - | μA |
| Threshold Voltage (High State Output, Vin Increasing) | VIH | 2.55 | 2.65 | 2.80 | V |
| Threshold Voltage (Low State Output, Vin Decreasing) | VIL | 2.55 | 2.65 | 2.80 | V |
| Hysteresis (ISink = 100 μA) | VH | 0.03 | - | 0.06 | V |
| Output Sink Saturation (Vin = 2.4 V, ISink = 1.0 mA) | VOL | - | 0.14 | 0.4 | V |
| Output Sink Current (Vin, Reset = 2.4 V) | ISink | 6.0 | - | 30 | mA |
| Output Off-State Leakage (Vin, Reset = 3.0 V) | IR(leak) | - | 0.02 | 0.5 | μA |
| Clamp Diode Forward Voltage, Reset to Input Pin (IF = 5.0 mA) | VF | 0.6 | 0.9 | 1.2 | V |
Key Features
- Temperature Compensated Reference: Ensures stable operation across a range of temperatures.
- Monitors 3.0 V or 5.0 V Power Supplies: Specifically designed for monitoring 3.0 V (MC33164D-3R2G) power supplies.
- Precise Comparator Thresholds Guaranteed Over Temperature: Maintains accurate threshold voltages despite temperature variations.
- 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 requirements.
- Internal Clamp Diode for Discharging Delay Capacitor: Facilitates the discharge of delay capacitors.
- Guaranteed Reset Operation With 1.0 V Input: Ensures reliable reset functionality even at low input voltages.
- Extremely Low Standby Current: As Low as 9.0 μA: Minimizes power consumption in standby mode.
- Economical TO-92, TSOP-5, SOIC-8 and Micro8 Surface Mount Packages: Offers a variety of packaging options for different design needs.
- NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes: Suitable for automotive and other critical applications with stringent control requirements.
- Pb-Free Packages are Available: Compliant with RoHS standards for environmental sustainability.
Applications
The MC33164D-3R2G is versatile and can be used in various applications, including:
- Appliance Equipment: Monitors power supplies in household and commercial appliances.
- Automotive Systems: Suitable for automotive applications due to its robust specifications and NCV prefix options.
- Consumer Electronics: Ideal for battery-powered consumer devices requiring low power consumption and reliable reset functionality.
- Industrial Equipment: Used in industrial settings where precise voltage monitoring and reset control are essential.
Q & A
- What is the primary function of the MC33164D-3R2G?
The primary function of the MC33164D-3R2G is to act as an undervoltage sensing circuit and reset controller in microprocessor-based systems.
- What are the typical threshold voltages for the MC33164D-3R2G?
The typical threshold voltages are 2.55 V for the high state output and 2.65 V for the low state output, with a hysteresis of 0.03 V to 0.06 V.
- What is the maximum sink current of the reset output?
The reset output can sink in excess of 6.0 mA.
- What is the operating input voltage range of the MC33164D-3R2G?
The operating input voltage range is from 1.0 V to 10 V.
- How low can the standby current be?
The standby current can be as low as 9.0 μA.
- What types of packages are available for the MC33164D-3R2G?
The device is available in SOIC-8, TO-92, TSOP-5, and Micro8 surface mount packages.
- Is the MC33164D-3R2G RoHS compliant?
Yes, the MC33164D-3R2G is Pb-Free and RoHS compliant.
- What is the significance of the NCV prefix?
The NCV prefix indicates that the device is suitable for automotive and other applications requiring site and control changes.
- What is the maximum power dissipation at 25°C for the SOIC-8 package?
The maximum power dissipation at 25°C for the SOIC-8 package is 700 mW.
- What is the operating ambient temperature range for the MC33164D-3R2G?
The operating ambient temperature range is from 0°C to +70°C.
