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MAX692 from MAX,MAXIM - Dallas Semiconductor

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MAX692

Manufacturer: MAX, MAXIM

Microprocessor Supervisory Circuits

Partnumber Manufacturer Quantity Availability
MAX692 MAX, MAXIM 35 In Stock

Description and Introduction

Microprocessor Supervisory Circuits The MAX692 is a serial-interfaced, vacuum fluorescent display (VFD) tube driver manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage:** 4.5V to 5.5V  
- **Output Voltage (VFD Anode/Grid Drive):** Up to 76V  
- **Serial Interface:** SPI-compatible (3-wire)  
- **Number of Outputs:** 20 (4 grid and 16 segment drivers)  
- **Maximum Output Current per Segment:** 100mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 28-pin PDIP, SO, or SSOP  

### **Descriptions:**
The MAX692 is designed to drive VFD displays efficiently with minimal external components. It integrates high-voltage drivers for both grids and segments, reducing the need for additional power supplies. The device communicates via a simple serial interface, making it suitable for microcontroller-based systems.

### **Features:**
- **High-Voltage Outputs:** Supports up to 76V for driving VFD tubes.  
- **Low-Power Operation:** Optimized for battery-powered applications.  
- **Built-In Blanking Function:** Allows display blanking without data changes.  
- **Cascadable Design:** Multiple MAX692 ICs can be daisy-chained for larger displays.  
- **Low EMI:** Minimizes electromagnetic interference.  
- **Thermal Protection:** Prevents damage from excessive heat.  

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

Application Scenarios & Design Considerations

Microprocessor Supervisory Circuits

Alternative Part Number

  • ICL7665 --: Similar CMOS voltage detector/supervisor function in a different series, often used as a substitute for MAX692-type monitoring circuits.
  • MC34164 --: Micropower voltage detector with comparable threshold monitoring role, widely available and pin-compatible in many designs.
  • TL7705 --: Supply voltage supervisor with reset output, suitable replacement where MAX692 is used for voltage monitoring and reset generation.
  • MC34064 --: Undervoltage sensing circuit providing reset output, a common low-cost alternative for supply monitoring duties similar to the MAX692.

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