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MAX811MEUS from MAXIM,MAXIM - Dallas Semiconductor

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MAX811MEUS

Manufacturer: MAXIM, MAX

4-Pin µP Voltage Monitors with Manual Reset Input

Partnumber Manufacturer Quantity Availability
MAX811MEUS MAXIM, MAX 34000 In Stock

Description and Introduction

4-Pin µP Voltage Monitors with Manual Reset Input The MAX811MEUS is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Type:** Voltage Monitor / Supervisor IC  
- **Package:** SOT-143  
- **Number of Pins:** 4  
- **Output Type:** Active-Low Reset  
- **Reset Threshold Voltage Options:** Factory-Set (e.g., 4.63V, 4.38V, 3.08V, 2.93V, etc.)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Timeout Period:** Typically 140ms (min)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** Typically 5μA  

### **Descriptions:**
The MAX811MEUS is designed to monitor system voltage levels in microprocessor and digital systems. It asserts a reset signal when the supply voltage drops below a preset threshold, ensuring proper system initialization and preventing erratic operation during power-up, power-down, or brownout conditions.

### **Features:**
- **Precision Voltage Monitoring:** Guaranteed reset threshold accuracy (±1.5%).  
- **Low Power Consumption:** Minimal current draw (5μA typical).  
- **Manual Reset Input:** Allows external pushbutton reset control (if applicable).  
- **No External Components Required:** Simplifies circuit design.  
- **Wide Operating Voltage Range:** Supports 1.2V to 5.5V systems.  
- **Small Form Factor:** Available in a compact SOT-143 package.  
- **Industrial Temperature Range:** Suitable for harsh environments (-40°C to +85°C).  

This IC is commonly used in embedded systems, automotive electronics, and battery-powered devices to ensure reliable operation.

Application Scenarios & Design Considerations

4-Pin µP Voltage Monitors with Manual Reset Input

Alternative Part Number

  • ADM811LARTZ-REEL --: Pin-compatible microprocessor reset supervisor with similar threshold and active-low reset, from a different series and vendor.
  • TPS3808G01DBVR --: Adjustable-threshold supervisor in SOT-23 with open-drain reset, a common cross-vendor substitute for MAX811 functions.
  • CAT811TTBI-GT3 --: Direct functional equivalent reset supervisor in SOT-23 with active-low push-pull reset, different naming and manufacturer.
  • ADM811MATTZ-REEL --: Pin-compatible microprocessor reset supervisor with similar reset threshold and active-low push-pull output, widely available and functionally equivalent.
  • MCP1316MT-29BE/TO --: Low-power voltage supervisor with 2.9V trip point and active-low reset, suitable drop-in replacement in most reset circuits.

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