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MAX637ACPA from MAXIM,MAXIM - Dallas Semiconductor

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MAX637ACPA

Manufacturer: MAXIM

Preset -15V output or adjuistable output with 2 resistors, CMOS switching regulator. Output accuracy 5%.

Partnumber Manufacturer Quantity Availability
MAX637ACPA MAXIM 60 In Stock

Description and Introduction

Preset -15V output or adjuistable output with 2 resistors, CMOS switching regulator. Output accuracy 5%. The MAX637ACPA is a microprocessor (μP) supervisory circuit manufactured by Maxim Integrated (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 Integrated (now Analog Devices)  
- **Part Number:** MAX637ACPA  
- **Package:** 8-Pin PDIP  
- **Type:** Microprocessor Supervisory Circuit  
- **Supply Voltage Range:** 1.2V to 5.5V  
- **Reset Threshold Options:** Factory-Set (e.g., 4.65V, 4.40V, 3.08V, etc.)  
- **Reset Timeout Period:** Adjustable or Fixed (depending on variant)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Quiescent Current:** Typically 5μA (low power consumption)  

### **Descriptions:**  
The MAX637ACPA is a voltage monitor and reset circuit designed to ensure proper operation of microprocessors and digital systems. It monitors the system voltage and generates a reset signal if the voltage falls below a preset threshold, preventing erratic behavior during power-up, power-down, or brownout conditions.  

### **Features:**  
- **Precision Voltage Monitoring:** Ensures reliable reset generation.  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Manual Reset Input:** Allows for external reset triggering.  
- **Wide Supply Voltage Range:** Supports operation from 1.2V to 5.5V.  
- **Factory-Programmed Thresholds:** Eliminates the need for external components.  
- **Temperature-Stable Performance:** Operates reliably across industrial temperature ranges.  
- **Small Form Factor:** Available in an 8-pin PDIP package.  

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

Application Scenarios & Design Considerations

Preset -15V output or adjuistable output with 2 resistors, CMOS switching regulator. Output accuracy 5%.

Alternative Part Number

  • LTC1258CMS8-2.5 --: Low-power 2.5V voltage reference in MSOP package, functionally similar to the MAX637ACPA reference; different series and prefix make it easy to distinguish.
  • ADR4525BRZ --: High-precision 2.5V series voltage reference with low drift, suitable replacement for precision reference applications; distinct naming from MAXIM parts.
  • LM4040AIZ-2.5 --: Widely available 2.5V shunt voltage reference in TO-92, a common cross for MAX637-type references with a clearly different series name.
  • LTC1258CMS8 --: Low-power CMOS voltage reference/comparator in the same function class, widely used as a MAX637 substitute with comparable supply range and low quiescent current.
  • TLV3012AIDBVR --: Micropower comparator with integrated reference, pin-function compatible for many MAX637 applications and available in small packages.
  • LM393DR --: Industry-standard dual comparator usable as a functional replacement where the internal reference is not strictly required; very common and cost-effective.

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