MC34064P-5

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MC34064P-5

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Supervisory Circuits

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概述

Description

The MC34064P-5 is a voltage sensing device often used in electronic circuits for monitoring the supply voltage level of microcontrollers and other digital systems. It is specifically designed to provide a reset signal when the supply voltage drops below a preset threshold, ensuring the system is in a known state during power-up and power-down sequences. The '-5' in its name indicates a threshold voltage of 4.6V to 4.75V, making it suitable for 5V systems.
Key features include a precise voltage detection threshold, low supply current, and an active low reset output. The device typically comes in a standard 8-pin DIP package, making it easy to integrate onto various PCBs. Its operating temperature range is suitable for most industrial and consumer applications. The MC34064P-5 is valued for its reliability and simplicity, helping to prevent erratic behavior in systems that can arise from inadequate power supply voltages. It plays a critical role in maintaining system stability and data integrity.

Equivalent

The MC34064P-5 is a voltage detector designed for microprocessor systems. Equivalent products include:
1. TL7705A - A Texas Instruments voltage supervisor with similar functionality.
2. ADM811 - An Analog Devices voltage detector with comparable features.
3. MAX809 - A Maxim Integrated product offering similar voltage monitoring capabilities.
4. SP706 - A Sipex (now part of Exar) voltage supervisor with equivalent characteristics.
These products provide similar voltage monitoring and reset functions. Always verify electrical specifications and package compatibility when selecting replacements.

Features

The MC34064P-5 is a voltage monitoring circuit designed to provide reliable and accurate power supply supervision. Key features include:
1. Under-Voltage Sensing: The device monitors the voltage level of a power supply and triggers an output when the voltage drops below a specified threshold, helping to prevent system malfunctions due to low voltage.
2. Precision Voltage Reference: It provides precise voltage thresholds, ensuring reliable detection of undervoltage conditions.
3. Reset Output: The device features an active low reset output which can be used to reset microprocessors or other digital systems in response to an undervoltage condition.
4. Low Supply Current: The MC34064P-5 operates with minimal supply current, making it energy-efficient.
5. Wide Supply Voltage Range: It supports a broad range of input supply voltages, which increases its versatility across different applications.
6. Temperature Range: The device operates effectively over a wide temperature range, making it suitable for various environmental conditions.
These features make the MC34064P-5 ideal for use in microprocessor-based systems, power management, and other applications requiring robust voltage supervision.

Pinout

The MC34064P-5 is a voltage sensing device commonly used for undervoltage sensing applications. It is designed to monitor the power supply voltage and provide a reset signal when the voltage drops below a predetermined threshold.
The device is housed in a 3-pin package. Here is a concise description of its pin functions:
1. Pin 1 (VCC): This is the voltage supply pin. It connects to the voltage that needs to be monitored. The device operates by detecting when the voltage at this pin drops below a specified threshold (typically 4.6V for the MC34064P-5).
2. Pin 2 (GND): This is the ground pin. It is the reference point for the voltage levels and must be connected to the system ground.
3. Pin 3 (RESET): This is the output pin. It provides a reset signal when the monitored voltage (VCC) falls below the threshold. The RESET pin typically goes low during such conditions and returns high when the voltage is above the threshold.
The MC34064P-5 ensures reliable system operation by initiating a reset during low voltage conditions, preventing incorrect operations in microcontrollers and digital circuits.

Manufacturer

The MC34064P-5 is manufactured by ON Semiconductor. ON Semiconductor, known as onsemi, is a global company that specializes in semiconductor manufacturing. They provide a wide range of semiconductor solutions, including power and signal management, logic, discrete, and custom devices across various industries such as automotive, industrial, cloud, and IoT. As a leading supplier in the semiconductor industry, onsemi focuses on energy-efficient innovations, catering to both traditional markets and emerging applications.

Application

The MC34064P-5 is a voltage sensing circuit used for undervoltage detection, providing a reliable reset signal for microcontrollers and other digital systems. Its primary application areas include power supply monitoring, microprocessor reset circuits, and battery-operated devices. It ensures that devices operate correctly by preventing erratic behavior during power-up, power-down, or brownout conditions by resetting the processor until the supply voltage stabilizes within a specified range. This makes it suitable for use in embedded systems, automotive electronics, industrial automation, and consumer electronics where maintaining stable operation during voltage fluctuations is critical.

Package

The MC34064P-5 is a voltage detector IC typically enclosed in a PDIP (Plastic Dual In-line Package) type. This package is known for its through-hole mounting and is commonly used in various electronic applications for voltage supervision.

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