The S-81230SG-QBT1G is a high-precision voltage detector IC from SII Semiconductor Corporation. It is designed to monitor the supply voltage of electronic devices and generate a reset signal when the voltage drops below a specified threshold. Its low power consumption and small package size make it ideal for portable and battery-powered applications.

Applications

• Reset circuits for microcontrollers and microprocessors
• Voltage monitoring in portable devices (e.g., smartphones, tablets)
• Power management systems in battery-powered equipment
• Overvoltage and undervoltage protection circuits
• Real-time clock (RTC) backup systems

Features

• Detection voltage: 3.0 V (typical)
• Low supply current: 0.8 μA (typical)
• Hysteresis voltage: 50 mV (typical)
• Operating voltage range: 1.6 V to 5.5 V
• Output type: N-channel open drain
• Package: SOT-25
• Lead-free (Sn 100%), halogen-free

Benefits

• Provides reliable system reset, preventing malfunctions due to low voltage conditions.
• Extends battery life in portable devices due to its ultra-low current consumption.
• Simplifies circuit design with its small package size and minimal external components required.
• Offers stable and accurate voltage detection over a wide operating temperature range.
• Suitable for various applications, including microcontroller reset and power management.

Additional Details

The S-81230SG-QBT1G features an N-channel open drain output, which allows for easy interfacing with various logic circuits. The built-in hysteresis helps to prevent oscillations near the detection threshold, ensuring stable operation. The device operates over a wide temperature range, making it suitable for harsh environments. The SOT-25 package allows for high-density mounting on printed circuit boards. It's crucial to review the official datasheet for the most accurate and up-to-date technical specifications.