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ULQ2804A from ST,ST Microelectronics

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ULQ2804A

Manufacturer: ST

EIGHT DARLINGTON ARRAYS

Partnumber Manufacturer Quantity Availability
ULQ2804A ST 923 In Stock

Description and Introduction

EIGHT DARLINGTON ARRAYS The ULQ2804A is a high-voltage, high-current Darlington transistor array manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Configuration:** 8-channel Darlington transistor array  
- **Output Voltage (VCE):** 50V (max)  
- **Output Current (IC):** 500mA per channel (max)  
- **Input Voltage (VIH):** 2.5V (min) for logic high  
- **Input Current (IIH):** 2.5mA (max)  
- **Clamp Diodes:** Integrated for inductive load protection  
- **Power Dissipation (PD):** 2.25W (total package)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** DIP-18, SO-18  

### **Descriptions:**  
The ULQ2804A is designed for interfacing between low-level logic (such as TTL, CMOS, or PMOS) and high-current/high-voltage loads like relays, solenoids, and lamps. Each channel consists of a Darlington pair with common-emitter outputs and integrated suppression diodes for inductive loads.

### **Features:**  
- **High-Voltage Outputs:** Up to 50V  
- **High-Current Drivers:** 500mA per channel  
- **Integrated Clamp Diodes:** For transient suppression  
- **TTL/CMOS/PMOS Compatible Inputs:** 2.5V logic threshold  
- **Wide Operating Temperature Range:** -20°C to +85°C  
- **Reliable Inductive Load Switching:** Suitable for relays and motors  

This information is based solely on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to STMicroelectronics' official documentation.

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