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MAX802SEPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX802SEPA

Manufacturer: MAXIM

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-low reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2%

Partnumber Manufacturer Quantity Availability
MAX802SEPA MAXIM 3400 In Stock

Description and Introduction

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-low reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2% The **MAX802SEPA** is a microprocessor (μP) supervisory circuit manufactured by **Maxim Integrated**. Below are its specifications, descriptions, and features based on the available knowledge:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor (μP) Voltage Monitor/Supervisory Circuit  
- **Output Type:** Active-Low, Push-Pull RESET  
- **Reset Threshold Voltage Options:** Factory-Set (e.g., 4.63V, 4.38V, 3.08V, etc., depending on suffix)  
- **Operating Voltage Range:** 1.2V to 5.5V  
- **Reset Timeout Period:** 140ms (minimum)  
- **Quiescent Current:** 5μA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 3-Pin SOT23  

### **Descriptions:**  
- The **MAX802SEPA** monitors the voltage of a microprocessor system and asserts a reset signal when the supply voltage drops below a preset threshold.  
- It ensures reliable system operation by holding the μP in reset during power-up, power-down, or brownout conditions.  
- The device features an active-low RESET output with a push-pull structure, eliminating the need for an external pull-up resistor.  

### **Features:**  
- **Low Power Consumption:** Only 5μA typical supply current.  
- **Precision Voltage Monitoring:** Factory-trimmed threshold voltages ensure accuracy.  
- **No External Components Required:** Integrated reset timeout eliminates the need for external capacitors.  
- **Wide Operating Voltage Range:** Works from 1.2V to 5.5V.  
- **Small Form Factor:** Available in a compact 3-pin SOT23 package.  
- **Guaranteed Reset Valid Down to VCC = 1V:** Ensures reliable operation even at low voltages.  

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

Application Scenarios & Design Considerations

3.0V or 3.3V microprocessor supervisory circuit. Reset threshold 2.925V. Active-low reset. Watchdog input. Backup-battery switch. Power-fail threshold accuracy +-2%. Power-fail comparator. Reset window +-2%

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