The S-81335HG-KI-T1 is a voltage detector IC manufactured by SII Semiconductor Corporation. Similar to the S-81335HG-KI, this IC monitors voltage levels and triggers a reset signal when the voltage drops below a specific threshold, protecting electronic devices from operating outside of safe voltage ranges. The -T1 suffix typically indicates a specific packaging or tape and reel option for automated assembly processes.

Applications

• Microcontroller reset circuits
• Power supply supervision
• Battery management systems
• Industrial equipment
• Automotive applications

Features

• High-precision voltage detection
• Extremely low current consumption
• Open-drain N-channel output
• Compact SOT-23 package
• Built-in hysteresis

Benefits

• Improved system stability by preventing malfunctions due to low voltage.
• Extended battery life in portable devices due to low power consumption.
• Simplified circuit design with an integrated reset function.
• Reduced board space requirements due to its small size.
• Enhanced noise immunity around the threshold voltage.

Technical Specifications

The S-81335HG-KI-T1 features a detection voltage of 3.5V. The typical current consumption is very low, measured in microamperes. The output is an open-drain N-channel MOSFET. It incorporates a hysteresis characteristic to improve noise immunity. The package is usually a SOT-23 type, suitable for surface mount assembly. The -T1 designation specifies the tape and reel packaging for automated pick-and-place assembly.

The open-drain output configuration allows for flexible interfacing with microcontrollers and other digital circuits. A pull-up resistor is required to establish the high voltage level when the output transistor is off. The hysteresis feature prevents the output from oscillating when the input voltage is near the detection threshold. The device is designed to operate within a specific temperature range, as specified in the datasheet. The S-81335HG-KI-T1 is suitable for various applications where voltage monitoring and reset functionality are required.