The X9015US8-2.7 is a precision voltage monitor manufactured by Intersil. It is designed to supervise power supply voltages in microprocessor and digital systems, providing a reset signal to the system when the supply voltage falls below a specific threshold. This ensures orderly system initialization and prevents erratic operation during power-up, power-down, or brownout conditions.

Applications

• Microcontroller Systems: Ensures proper startup and operation of microcontroller-based applications.
• Embedded Systems: Provides power supply monitoring and reset functionality for a wide variety of embedded systems.
• Industrial Control Equipment: Used in industrial control systems to maintain reliable operation during voltage fluctuations.
• Consumer Electronics: Integrated into consumer electronic devices to protect against voltage-related failures.
• Automotive Electronics: Provides voltage supervision in automotive electronic control units (ECUs).

Features

• Precision Voltage Threshold: Offers a highly accurate voltage threshold for reliable voltage detection.
• Factory-Trimmed Threshold: The threshold voltage is factory-trimmed for guaranteed accuracy, eliminating the need for external adjustments. Specifically, the '2.7' in the part number indicates a threshold of 2.7V.
• Open-Drain Reset Output: Provides a flexible open-drain reset output that can be used with various system logic levels.
• Low Supply Current: Consumes very little power, making it suitable for battery-powered and energy-sensitive applications.
• Small Surface-Mount Package: Available in a compact SOIC-8 (Small Outline Integrated Circuit) package, saving board space.

Benefits

• Improved System Reliability: Enhances system reliability by preventing malfunctions caused by undervoltage conditions.
• Data Integrity: Protects data integrity by ensuring that the system operates within specified voltage limits.
• Simplified Design: Simplifies system design by providing a single-chip solution for voltage monitoring and reset functionality.
• Reduced Component Count: Reduces component count and board space requirements.
• Lower Power Consumption: Minimizes power consumption for energy-efficient operation.

Additional Details

The X9015US8-2.7 operates over a wide supply voltage range. The reset output remains active (low) as long as the supply voltage is below the threshold. Once the supply voltage rises above the threshold, the reset output deasserts (goes high) after a specific timeout period. This timeout period is typically fixed and is designed to allow the power supply to stabilize before the system starts executing code. Refer to the device datasheet for detailed specifications regarding the threshold voltage accuracy, reset timeout period, operating temperature range, and electrical characteristics.