Overview
The MC34064D-005G is an undervoltage sensing circuit produced by onsemi, designed specifically for use as a reset controller in microprocessor-based systems. This component offers an economical solution for low voltage detection with 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 packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for surface mount applications.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Voltage Supervisor Type | Undervoltage Detector | |
| Number of Supervisors | 1 | |
| Maximum Reset Threshold Voltage | 4.7 | V |
| Minimum Reset Threshold Voltage | 4.5 | V |
| Mounting Type | Surface Mount | |
| Package Type | SOIC-8 | |
| Pin Count | 8 | |
| Dimensions | 5 x 4 x 1.5 mm | |
| Maximum Operating Supply Voltage | 6.5 | V |
| Maximum Operating Temperature | +70 °C | |
| Minimum Operating Temperature | 0 °C | |
| Minimum Operating Supply Voltage | 1 V | |
| Reset Output Sink Current | Up to 60 mA | |
| Quiescent Input Current (Vin = 5.0 V) | 390 - 500 µA |
Key Features
- Trimmed-In-Package Temperature Compensated Reference: Ensures precise voltage detection across various temperatures.
- Precise Comparator Thresholds: Guaranteed over the operating temperature range to prevent erratic reset operations.
- Built-In Hysteresis: Prevents oscillations and ensures stable reset signals.
- Open Collector Reset Output: Capable of sinking in excess of 10 mA, ensuring robust reset functionality.
- Internal Clamp Diode: For discharging delay capacitors.
- Guaranteed Reset Operation with 1.0 V Input: Ensures functionality even at low input voltages.
- Low Standby Current: Minimizes power consumption in standby mode.
- Economical Packaging Options: Available in TO-92, TSOP-5, SOIC-8, and Micro8 surface mount packages.
- Pb-Free and RoHS Compliant: Environmentally friendly and compliant with regulatory standards.
Applications
The MC34064D-005G is versatile and can be used in a variety of applications, including:
- Desktop, Laptop, and Notebook Computers: For monitoring and supervising power supply voltages.
- Test and Measurement Instruments: Ensuring reliable operation under various voltage conditions.
- Portable Battery-Powered Equipment: Monitoring battery voltage levels to prevent undervoltage conditions.
- Multiple-Output Power Supplies: Supervising multiple voltage outputs in power supply units.
- Appliance, Automotive, Consumer, and Industrial Equipment: Direct monitoring of power supply voltages in these sectors.
Q & A
- What is the primary function of the MC34064D-005G?
The MC34064D-005G is an undervoltage sensing circuit designed to act as a reset controller in microprocessor-based systems.
- What is the maximum reset threshold voltage for the MC34064D-005G?
The maximum reset threshold voltage is 4.7 V.
- What is the package type of the MC34064D-005G?
The MC34064D-005G is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.
- What is the operating temperature range for the MC34064D-005G?
The operating temperature range is from 0 °C to +70 °C.
- What is the minimum operating supply voltage for the MC34064D-005G?
The minimum operating supply voltage is 1 V.
- How much current can the reset output sink?
The reset output can sink up to 60 mA.
- Is the MC34064D-005G RoHS compliant?
Yes, the MC34064D-005G is Pb-free and RoHS compliant.
- What are some common applications for the MC34064D-005G?
Common applications include desktop, laptop, and notebook computers, test and measurement instruments, portable battery-powered equipment, and multiple-output power supplies.
- Does the MC34064D-005G have built-in hysteresis?
Yes, the MC34064D-005G has built-in hysteresis to prevent erratic reset operations.
- What is the quiescent input current at 5.0 V input voltage?
The quiescent input current at 5.0 V input voltage is between 390 µA and 500 µA.
