PST89D-PST89E

The RESET IC is an integrated circuit for voltage detection/power monitoring management. It is mainly used to monitor the power supply voltage of CPUs and other logic systems by detecting whether it has reached a specified threshold value. It triggers a system reset when power is turned on or when a momentary power failure (voltage drop) is detected. RESET ICs are widely used in many types of electronic devices such as office equipment and large home appliances. Although MCUs (microcontrollers with built-in reset functions) or other components can perform similar functions, critical safety protection functions can only be reliably ensured by RESET ICs. MinebeaMitsumi's comprehensive lineup of reset ICs includes various features, such as built-in delay circuits, separate detection inputs, manual reset functions, and built-in timers. All products offer high accuracy, low current consumption, and a wide detection voltage range, ensuring a wide range of solutions to meet various system requirements. 

MinebeaMitsumi PST89D and PST89E are reset ICs designed to manage power-on, power-off and power flicker events in CPU or logic systems. The delay time can be adjusted using an external capacitor.

PST89D and PST89E features :

• Low current consumption
• Small package

PST89D and PST89E applications :

• Reset circuits for microcomputers, CPUs and MPUs
• Reset circuits for logic circuits
• Battery voltage check circuits
• Back-up power supply switching circuits
• Level detection circuits