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UDN2543B from ALLEGRO

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15.625ms

UDN2543B

Manufacturer: ALLEGRO

PROTECTED QUAD POWER DRIVER

Partnumber Manufacturer Quantity Availability
UDN2543B ALLEGRO 40 In Stock

Description and Introduction

PROTECTED QUAD POWER DRIVER The UDN2543B is a quad power driver manufactured by Allegro MicroSystems.  

### **Specifications:**  
- **Output Current:** 500 mA per channel (sink)  
- **Output Voltage:** 50 V  
- **Input Logic Compatibility:** TTL, CMOS  
- **Number of Channels:** 4  
- **Package Type:** 16-pin DIP (Dual In-line Package)  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
The UDN2543B is a monolithic quad power driver designed for interfacing between low-level logic and high-power loads. It is suitable for driving inductive loads such as relays, solenoids, and lamps.  

### **Features:**  
- **High-Voltage Outputs:** Capable of driving loads up to 50 V  
- **Built-in Clamp Diodes:** For inductive load protection  
- **TTL/CMOS Compatible Inputs:** Ensures easy interfacing with logic circuits  
- **High Output Current:** 500 mA per channel for robust load driving  
- **Thermal Protection:** Prevents damage from overheating  

This information is based on Allegro's official documentation for the UDN2543B.

Partnumber Manufacturer Quantity Availability
UDN2543B A 285 In Stock

Description and Introduction

PROTECTED QUAD POWER DRIVER The part UDN2543B is manufactured by Allegro MicroSystems. Here are the specifications, descriptions, and features:

### **Specifications:**  
- **Output Current:** 500 mA per channel (sink)  
- **Output Voltage:** 50 V  
- **Input Voltage:** 5 V (TTL/CMOS compatible)  
- **Number of Channels:** 4  
- **Power Dissipation:** 2.25 W  
- **Operating Temperature Range:** -20°C to +85°C  

### **Description:**  
The UDN2543B is a quad peripheral driver designed for high-voltage, high-current applications. It integrates four independent Darlington transistor pairs with common emitters, capable of driving inductive loads such as relays, solenoids, and lamps.  

### **Features:**  
- **High-Voltage Outputs (50 V)**  
- **TTL/CMOS-Compatible Inputs**  
- **Built-in Clamp Diodes for Inductive Load Protection**  
- **Common Emitter Configuration**  
- **High Output Current Capability (500 mA per Channel)**  
- **Thermal Shutdown Protection**  

This information is sourced from Allegro MicroSystems' datasheet for the UDN2543B.

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