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ULN2804 from ST,ST Microelectronics

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ULN2804

Manufacturer: ST

HIGH-VOLTAGE/ HIGH-CURRENT DARLINGTON ARRAYS

Partnumber Manufacturer Quantity Availability
ULN2804 ST 962 In Stock

Description and Introduction

HIGH-VOLTAGE/ HIGH-CURRENT DARLINGTON ARRAYS The ULN2804 is a high-voltage, high-current Darlington transistor array manufactured by STMicroelectronics.  

### **Specifications:**  
- **Configuration:** 8 NPN Darlington pairs  
- **Output Voltage:** Up to 50V  
- **Output Current (per channel):** 500mA (continuous), 600mA (peak)  
- **Input Voltage Compatibility:** 3V to 5V TTL/CMOS  
- **Input Resistance:** 2.7kΩ (per channel)  
- **Power Dissipation:** 2.25W (total)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** PDIP-18, SO-18  

### **Descriptions and Features:**  
- Designed for interfacing between low-level logic and high-power loads.  
- Includes built-in suppression diodes for inductive load protection.  
- Common-cathode clamp diodes for switching inductive loads.  
- Inputs are pinned opposite outputs for easy PCB layout.  
- Suitable for relay drivers, lamp drivers, display drivers (LED), and logic buffers.  
- Compatible with standard TTL, DTL, PMOS, and CMOS logic.  

The ULN2804 is widely used in industrial and consumer applications requiring high-current switching.

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