ON Semiconductor MC33064DR2 - Under-Voltage Sensing Circuit

The ON Semiconductor MC33064DR2 is a precision under-voltage sensing integrated circuit designed to trigger a reset in microprocessors and other logic systems when a drop in power supply voltage is detected. This device is essential for systems where reliable operation depends on a stable power supply, ensuring that the system can safely shut down or reset before any damage occurs due to insufficient voltage.

Featuring a fixed voltage reference and comparator, the MC33064DR2 monitors the voltage level of the power supply connected to it. When the supply voltage drops below a predetermined threshold, the output of the device becomes active, signaling the system to take appropriate action. This threshold is precisely set at 4.55V, making it suitable for 5V logic systems.

The device comes in an 8-pin SOIC package, which is compact and suitable for space-constrained applications. Its small footprint allows for easy integration into a wide range of electronic systems, from consumer electronics to industrial controls. The MC33064DR2 operates over a wide temperature range, making it reliable in various environmental conditions.

Key features of the MC33064DR2 include:

• Precision voltage monitoring for 5V power supplies
• Fixed trip point set at 4.55V ±2%
• Low standby current, making it energy-efficient
• Fast response time ensures timely system protection
• Open-drain output which can interface with other logic systems easily
• Wide operating temperature range from -40°C to +85°C
• Industry-standard SOIC-8 package for ease of use

Applications for the MC33064DR2 are diverse and include computer systems, battery-powered equipment, and any critical system where power supply stability is a concern. Its ability to detect under-voltage conditions helps to prevent data loss, component damage, and ensures overall system integrity.

With its precise voltage sensing capabilities, low power consumption, and fast response time, the ON Semiconductor MC33064DR2 is an ideal choice for designers looking to add under-voltage protection to their electronic systems.