Overview
The MC34164D-3R2G is a micropower undervoltage sensing circuit produced by onsemi. It is specifically designed for use as a reset controller in portable microprocessor-based systems where extended battery life is crucial. This device offers an economical solution for low voltage detection with a single external resistor, making it ideal for various applications requiring precise voltage monitoring.
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 Junction Temperature | TJ | +150 | °C | ||
| Operating Ambient Temperature Range | TA | 0 | +70 | °C | |
| Storage Temperature Range | Tstg | -65 | +150 | °C | |
| Threshold Voltage (High State Output) | VIH | 2.55 | 2.65 | 2.71 | V |
| Threshold Voltage (Low State Output) | VIL | 2.45 | 2.55 | 2.65 | V |
| Hysteresis | VH | 0.03 | 0.06 | 0.09 | V |
| Output Sink Saturation (Vin = 4.0 V, ISink = 1.0 mA) | VOL | 0.1 | 0.14 | 0.4 | V |
| Quiescent Input Current (Vin = 5.0 V) | Iin | 12 | 20 | 32 | μA |
Key Features
- Temperature Compensated Reference
- Monitors 3.0 V (MC34164-3) or 5.0 V (MC34164-5) Power Supplies
- Precise Comparator Thresholds Guaranteed Over Temperature
- Comparator Hysteresis Prevents Erratic Reset
- Reset Output Capable of Sinking in Excess of 6.0 mA
- Internal Clamp Diode for Discharging Delay Capacitor
- Guaranteed Reset Operation With 1.0 V Input
- Extremely Low Standby Current: As Low as 9.0 μA
- Economical TO-92 (TO-226AA), TSOP-5, SOIC-8 and Micro8 Surface Mount Packages
- NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes
- Pb-Free and RoHS Compliant
Applications
The MC34164D-3R2G is used in various applications including:
- Direct monitoring of the 3.0 V or 5.0 V MPU/logic power supply
- Appliance, automotive, consumer, and industrial equipment
Q & A
- What is the primary function of the MC34164D-3R2G?
The MC34164D-3R2G is primarily used as a reset controller in portable microprocessor-based systems to monitor and reset the system when the voltage falls below a specified threshold.
- What are the typical threshold voltages for the MC34164-3?
The typical threshold voltages for the MC34164-3 are 2.55 V for the high state output and 2.45 V for the low state output, with a hysteresis of 0.06 V.
- What is the maximum sink current of the reset output?
The reset output is capable of sinking in excess of 6.0 mA.
- What is the operating input voltage range of the MC34164D-3R2G?
The operating input voltage range is from 1.0 V to 10 V.
- What is the quiescent input current at 5.0 V input voltage?
The quiescent input current at 5.0 V input voltage is typically 20 μA.
- What are the available package types for the MC34164D-3R2G?
The device is available in 3-pin TO-92 (TO-226AA), micro size TSOP-5, 8-pin SOIC-8, and Micro8 surface mount packages.
- Is the MC34164D-3R2G RoHS compliant?
- What is the storage temperature range for the MC34164D-3R2G?
The storage temperature range is from -65°C to +150°C.
- What is the purpose of the internal clamp diode?
The internal clamp diode is used for discharging the delay capacitor.
- What are some common applications of the MC34164D-3R2G?
