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MAX6749KA+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX6749KA+T

Manufacturer: MAXIM, N/A

µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay

Partnumber Manufacturer Quantity Availability
MAX6749KA+T,MAX6749KAT MAXIM, N/A 3775 In Stock

Description and Introduction

µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay The MAX6749KA+T is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Type:** Microprocessor (μP) Supervisory Circuit  
- **Package:** SOT-23-5  
- **Operating Voltage Range:** 1.6V to 5.5V  
- **Reset Threshold Options:** Adjustable or Fixed (factory-set)  
- **Reset Timeout Period:** Adjustable or Fixed (typically 140ms)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Type:** Active-Low Reset  

### **Descriptions:**  
- The MAX6749KA+T monitors system voltage and provides a reset signal to the microprocessor when the voltage falls below a preset threshold.  
- It ensures proper system operation by holding the microprocessor in reset until the supply voltage stabilizes.  
- Suitable for battery-powered and low-voltage applications due to its wide operating range.  

### **Features:**  
- **Low Quiescent Current:** Typically 5μA (helps conserve power in portable applications).  
- **Manual Reset Input:** Allows for external reset control.  
- **Debounced Reset Output:** Ensures a clean reset signal.  
- **No External Components Required:** Simplifies circuit design.  
- **Hysteresis:** Prevents reset signal oscillation near the threshold voltage.  
- **Small Form Factor:** SOT-23-5 package saves board space.  

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

Application Scenarios & Design Considerations

µP Reset Circuits with Capacitor-Adjustable Reset/Watchdog Timeout Delay

Alternative Part Number

  • ADM6710KARJZ-REEL7 --: Analog Devices supervisor in SOT-23-5 with similar reset threshold and active-low push-pull output, direct functional replacement for MAX6749.
  • TPS3808G30DBVR --: Low-power voltage supervisor with adjustable delay and active-low reset, comparable threshold and small SOT-23 package, good second-source option.
  • MCP1316T-30DI/OT --: 3.0V reset supervisor with active-low output in SOT-23-5, similar monitoring function and pin-compatible footprint for many designs.
  • ADM6711SAKSZ-REEL7 --: Pin-compatible supervisory/reset IC with similar reset threshold and open-drain output, widely available and a direct functional substitute for the MAX6749.
  • TPS3808G01DBVR --: Adjustable-threshold supervisor in SOT-23 with programmable delay, comparable supply monitoring function and good availability.
  • MCP1316T-29FE/OT --: Low-power voltage supervisor with fixed reset threshold and open-drain output, suitable as a drop-in functional replacement in small packages.

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