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ULN2803A from TOSHIBA

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ULN2803A

Manufacturer: TOSHIBA

High-Voltage, High-Current Darlington Arrays

Partnumber Manufacturer Quantity Availability
ULN2803A TOSHIBA 6250 In Stock

Description and Introduction

High-Voltage, High-Current Darlington Arrays The ULN2803A from TOSHIBA is a high-voltage, high-current Darlington transistor array. Below are its specifications, descriptions, and features:

### **Specifications:**  
- **Output Current (per Channel):** 500 mA (max)  
- **Output Voltage (Collector-Emitter):** 50 V (max)  
- **Input Voltage (Base-Emitter):** 30 V (max)  
- **Input Current (per Channel):** 1.5 mA (max)  
- **Power Dissipation (Total):** 2.25 W (max)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** 18-pin DIP (Dual In-line Package)  

### **Descriptions:**  
- The ULN2803A consists of eight NPN Darlington pairs with common emitters and integral suppression diodes for inductive loads.  
- Designed for interfacing between low-level logic (TTL, CMOS) and high-current/high-voltage loads (relays, lamps, motors).  
- Each channel has a peak load current rating of 500 mA.  

### **Features:**  
- **High-Voltage Outputs:** Up to 50 V.  
- **Darlington Pair Configuration:** Provides high current gain.  
- **Integrated Suppression Diodes:** For inductive load protection.  
- **Compatible with TTL, DTL, PMOS, CMOS Logic Levels.**  
- **Input Pins Opposite Output Pins:** Simplifies PCB layout.  
- **Wide Range of Applications:** Relay drivers, lamp drivers, display drivers, logic buffers.  

This information is based on the manufacturer's datasheet for the ULN2803A by TOSHIBA.

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