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MB3771PS from FUJ

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MB3771PS

Manufacturer: FUJ, FUJITSU

Power Supply Monitor

Partnumber Manufacturer Quantity Availability
MB3771PS FUJ, FUJITSU 59 In Stock

Description and Introduction

Power Supply Monitor **Manufacturer:** FUJ  

**Part Number:** MB3771PS  

**Specifications:**  
- **Type:** Power Supply Monitor IC  
- **Function:** Voltage monitoring and reset generation  
- **Operating Voltage Range:** 1.8V to 5.5V  
- **Reset Threshold Accuracy:** ±2.0%  
- **Reset Timeout Period:** Adjustable via external capacitor  
- **Output Type:** Active-low reset signal (open-drain or CMOS)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** SOP-8 (Small Outline Package)  

**Descriptions:**  
The MB3771PS is a voltage monitoring IC designed to ensure stable power supply operation in electronic systems. It monitors the input voltage and generates a reset signal if the voltage falls below a specified threshold, preventing system malfunctions.  

**Features:**  
- Low-voltage detection with high accuracy  
- Adjustable reset delay time  
- Low power consumption  
- Compact SOP-8 package for space-saving designs  
- Suitable for battery-powered and portable devices  
- Built-in hysteresis for noise immunity  

This information is based on available technical documentation for the MB3771PS by FUJ.

Application Scenarios & Design Considerations

Power Supply Monitor

Alternative Part Number

  • MAX705CPA --: Pin-compatible microprocessor supervisory/reset IC with similar reset and watchdog functions, widely available and well documented.
  • TL7705ACP --: Voltage supervisor/reset IC offering comparable supply monitoring and reset timing in a DIP package.
  • MC34064P --: Undervoltage sensing/reset circuit with similar function and DIP package, suitable as a functional substitute.
  • M51953BFP --: Renesas voltage detector/reset IC in the same functional class as the MB3771, commonly used as a direct replacement in supervisory circuits.
  • S-80845CLMC --: Low-power CMOS voltage detector with similar reset threshold and open-drain output, suitable for power-on reset applications.
  • TC54VC4202ECB --: Widely available voltage supervisor/detector with comparable threshold and output behavior, good second-source option.

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