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MAX685EEE from MAX,MAXIM - Dallas Semiconductor

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MAX685EEE

Manufacturer: MAX, MAXIM, MAXIN, MAXIM,MAXIM

Dual-Output Positive and Negative / DC-DC Converter for CCD and LCD

Partnumber Manufacturer Quantity Availability
MAX685EEE MAX, MAXIM, MAXIN, MAXIM,MAXIM 30674 In Stock

Description and Introduction

Dual-Output Positive and Negative / DC-DC Converter for CCD and LCD The MAX685EEE is a part manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
- **MAXIM** (now part of Analog Devices)  

### **Specifications:**  
- **Type:** Voltage Monitor/Supervisor IC  
- **Number of Channels:** 1  
- **Output Type:** Active-Low, Push-Pull  
- **Reset Threshold Voltage:** Adjustable or Fixed (depending on variant)  
- **Operating Voltage Range:** Typically 1.6V to 5.5V  
- **Reset Timeout Period:** Adjustable or Fixed (e.g., 140ms, 280ms)  
- **Package:** 16-QSOP (EE)  

### **Descriptions:**  
- The MAX685EEE is a microprocessor (µP) supervisory circuit designed to monitor system voltage levels and provide a reset signal to the µP in case of power failure or brownout conditions.  
- It ensures proper system initialization by holding the µP in reset until the supply voltage stabilizes.  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Manual Reset Input:** Allows for external reset triggering.  
- **Adjustable or Fixed Threshold:** Some variants support factory-set or user-adjustable reset thresholds.  
- **Wide Operating Voltage Range:** Supports monitoring from 1.6V to 5.5V.  
- **Push-Pull Reset Output:** Ensures a strong, well-defined reset signal.  
- **Small Package (16-QSOP):** Space-efficient for compact designs.  

This information is based on the available knowledge base and datasheet details. For exact specifications, refer to the official datasheet from Maxim Integrated (Analog Devices).

Application Scenarios & Design Considerations

Dual-Output Positive and Negative / DC-DC Converter for CCD and LCD

Alternative Part Number

  • LTC1550CS8 --: Low-noise inverting charge pump in an SO-8 package that provides a negative regulated output similar to the MAX685, making it a strong functional substitute.
  • ICL7660SCPA --: Classic CMOS voltage converter/inverter that can generate a negative rail from a positive supply; widely available and a common drop-in for charge-pump inverter applications.
  • TC7660CPA --: Pin-compatible CMOS charge-pump voltage inverter with similar negative-output capability, offering a cost-effective alternative for the MAX685 function.
  • TC7660EOA --: Low-cost CMOS charge pump inverter functionally similar to the MAX685 family, available in SO-8, good for general negative rail generation with modest current.
  • LT1940EFE --: Dual-output step-up/boost switching regulator in a 16-pin TSSOP package, functionally similar to the MAX685 dual boost converter with comparable input voltage range and current capability.
  • TPS61030PWPR --: High-efficiency boost converter with integrated switch and adjustable output, suitable as a functional replacement for the MAX685 in low-voltage step-up applications.
  • MC34063ADR2G --: Widely available general-purpose DC-DC switching regulator that can be configured as a boost converter, offering a low-cost and easily sourced alternative for MAX685 designs.

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