The S-80728SN is a voltage detector IC manufactured by SII Semiconductor Corporation. This device monitors the input voltage and asserts a reset signal when the voltage falls below a predetermined threshold. This functionality is essential for preventing erroneous operation of microcontrollers and other digital circuits caused by undervoltage conditions.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power supply monitoring
• Battery-operated devices
• Industrial control systems

Features

• High-accuracy voltage detection: Ensures precise monitoring of the input voltage.
• Low current consumption: Minimizes power drain, making it ideal for battery-powered applications.
• Wide operating voltage range: Suitable for use with various power supply voltages.
• Small package size: Allows for compact circuit designs and efficient use of PCB space.
• Built-in hysteresis: Prevents oscillation or chattering of the reset signal due to noisy input voltages.

Benefits

• Protects microcontrollers from operating with insufficient voltage.
• Extends the life of batteries in portable devices.
• Ensures reliable system operation.
• Simplifies circuit design and reduces component count.
• Reduces the overall size and cost of electronic devices.

Technical Specifications

The S-80728SN typically features a detection voltage around 2.8V (refer to the device datasheet for the precise value, as it may vary slightly). It operates within a defined voltage range, commonly between 1.0V and 10.0V. The supply current is very low, typically in the microampere range. It is commonly available in a SOT-23 package suitable for surface mount technology. The output is typically N-channel open drain or CMOS output. Always consult the official datasheet for detailed electrical characteristics, including timing diagrams and specific operating conditions.

The S-80728SN is a reliable and efficient voltage detector well-suited for a variety of applications where accurate voltage monitoring and reset generation are required, especially in low-power and space-constrained designs.