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MAX791ESE+ from MAX,MAXIM - Dallas Semiconductor

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MAX791ESE+

Manufacturer: MAX

Microprocessor Supervisory Circuit

Partnumber Manufacturer Quantity Availability
MAX791ESE+,MAX791ESE MAX 500 In Stock

Description and Introduction

Microprocessor Supervisory Circuit The MAX791ESE+ is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Series:** MAX791  
- **Package:** 16-SOIC (0.154", 3.90mm Width)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 1.2V to 5.5V  
- **Watchdog Timer:** Yes  
- **Reset Threshold Voltage:** Adjustable or fixed (depending on variant)  
- **Reset Timeout Period:** Adjustable or fixed (typically 200ms)  
- **Manual Reset Input:** Yes  
- **Battery Backup Switchover:** Yes  
- **Battery Backup Voltage Range:** 1V to 5.5V  
- **Power-Fail Comparator:** Yes  

### **Description:**  
The MAX791ESE+ is a comprehensive μP supervisory circuit designed to monitor power supply, battery backup, and watchdog functions in microprocessor-based systems. It ensures reliable system operation by generating a reset signal during power-up, power-down, or brownout conditions. It also includes a watchdog timer to detect software crashes and a manual reset input for user-initiated resets.  

### **Features:**  
- **Power Supply Monitoring:** Monitors VCC for undervoltage conditions.  
- **Battery Backup:** Automatically switches to backup battery when VCC fails.  
- **Watchdog Timer:** Resets the system if the watchdog is not toggled within a set time.  
- **Manual Reset Input:** Allows for external reset triggering.  
- **Power-Fail Comparator:** Provides early warning of power failure.  
- **Low Quiescent Current:** Minimizes power consumption in backup mode.  
- **Wide Operating Voltage Range:** Supports systems from 1.2V to 5.5V.  
- **Industrial Temperature Range:** Operates from -40°C to +85°C.  

This information is strictly factual and sourced from the manufacturer's datasheet.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuit
Partnumber Manufacturer Quantity Availability
MAX791ESE+,MAX791ESE MAXIM 3829 In Stock

Description and Introduction

Microprocessor Supervisory Circuit The **MAX791ESE+** is a microprocessor supervisory circuit manufactured by **MAXIM** (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** MAXIM (Analog Devices)  
- **Package:** 16-SOIC (150mil)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Accuracy:** ±1.5%  
- **Reset Timeout Period:** Adjustable or fixed (typically 200ms)  
- **Watchdog Timer:** Programmable (1.6s nominal)  
- **Backup Battery Switchover:** Supports automatic switchover to backup battery  
- **Manual Reset Input:** Yes (active-low)  
- **Power-Fail Comparator:** Monitors input voltage  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The **MAX791ESE+** is a comprehensive microprocessor (μP) supervisory circuit designed to monitor power supply voltages, provide reset signals, and ensure system integrity during power failures. It integrates multiple functions, including a watchdog timer, backup battery switchover, and power-fail detection, making it suitable for critical embedded systems.  

### **Features:**  
- **Voltage Monitoring:** Monitors VCC for undervoltage conditions.  
- **Reset Output:** Generates a reset signal when VCC falls below the threshold.  
- **Watchdog Timer:** Prevents system lockup by requiring periodic toggling.  
- **Backup Battery Support:** Automatically switches to backup power during main power failure.  
- **Manual Reset Input:** Allows external reset triggering.  
- **Power-Fail Comparator:** Early warning for impending power loss.  
- **Low Quiescent Current:** Optimized for battery-powered applications.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuit

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