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MAX6957AAX+ from MAIXM

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MAX6957AAX+

Manufacturer: MAIXM

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander

Partnumber Manufacturer Quantity Availability
MAX6957AAX+ MAIXM 2500 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander The MAX6957AAX+ is a versatile LED driver manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (MAIXM)  
- **Part Number:** MAX6957AAX+  
- **Type:** LED Driver  
- **Interface:** I²C, SPI  
- **Number of Segments:** Up to 28 segments (or 7 digits)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 36-Pin SSOP (Shrink Small Outline Package)  
- **Current per Segment:** Programmable (up to 40mA)  
- **Dimming Control:** 16-step logarithmic brightness control  

### **Descriptions:**
The MAX6957AAX+ is a compact, high-efficiency LED driver designed for driving multiplexed 7-segment displays, bar graphs, or discrete LEDs. It supports both I²C and SPI communication interfaces, making it flexible for various microcontroller applications. The device includes an integrated oscillator, reducing external component requirements.

### **Features:**
- **Multiplexed LED Drive:** Supports up to 28 segments (7 digits)  
- **Flexible Interface:** I²C (up to 400kHz) or SPI (up to 26MHz)  
- **Low Power Consumption:** Optimized for battery-powered applications  
- **Brightness Control:** Adjustable via 16-step logarithmic dimming  
- **Fault Detection:** Open- and shorted-LED detection  
- **Wide Voltage Range:** Operates from 2.7V to 5.5V  
- **Thermal Protection:** Prevents overheating  
- **Small Footprint:** 36-pin SSOP package for space-constrained designs  

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

Application Scenarios & Design Considerations

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port LED Display Driver and I/O Expander

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