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PST9123 from MITSUMI

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PST9123

Manufacturer: MITSUMI

System Reset

Partnumber Manufacturer Quantity Availability
PST9123 MITSUMI 10900 In Stock

Description and Introduction

System Reset The **PST9123** is a highly reliable power supply monitoring IC designed to ensure stable operation in electronic systems. It features precise voltage detection and reset functions, making it ideal for applications where maintaining proper power levels is critical.  

This component monitors the supply voltage and generates a reset signal if the voltage falls below a predefined threshold. The PST9123 offers adjustable or fixed threshold options, providing flexibility for various design requirements. Its low power consumption and compact form factor make it suitable for battery-powered devices, embedded systems, and industrial controls.  

Key features include a built-in delay timer to prevent false resets during power fluctuations, as well as high noise immunity for robust performance in electrically noisy environments. The PST9123 operates over a wide voltage range, ensuring compatibility with multiple power supply configurations.  

Engineers often integrate the PST9123 into microcontrollers, FPGAs, and other digital systems to enhance reliability and prevent malfunctions caused by unstable power conditions. With its dependable performance and ease of implementation, this IC is a practical choice for safeguarding sensitive electronics against voltage irregularities.  

In summary, the PST9123 is a versatile and efficient solution for power monitoring, offering essential protection for modern electronic designs.

Application Scenarios & Design Considerations

System Reset

Alternative Part Number

  • S-80823CNUA --: Voltage detector/reset IC with similar reset threshold and open-drain output, direct functional replacement for Mitsumi PST9123 supervisory function.
  • BD5230G --: CMOS voltage detector with comparable detection voltage and low current consumption, suitable drop-in alternative for reset monitoring.
  • MCP112T-300E --: Low-power voltage supervisor with similar threshold and active-low reset output, widely available alternative for PST9123 applications.
  • MAX809 --: Pin-compatible voltage supervisor/reset IC with similar reset threshold and active-low output, widely used as a direct substitute for PST9123.
  • MCP130 --: Low-cost voltage supervisor with comparable reset threshold and open-drain/active-low output, suitable replacement in reset monitoring circuits.
  • TL7705 --: General-purpose supply voltage supervisor with adjustable threshold and reset output, usable as a functional alternative when exact threshold matching is not critical.

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