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ULQ2803A from ST,ST Microelectronics

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ULQ2803A

Manufacturer: ST

EIGHT DARLINGTON ARRAYS

Partnumber Manufacturer Quantity Availability
ULQ2803A ST 1940 In Stock

Description and Introduction

EIGHT DARLINGTON ARRAYS The ULQ2803A is a high-voltage, high-current Darlington transistor array manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features:

### **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 (II):** 2.5mA (max)  
- **Power Dissipation (PD):** 2.25W (total package)  
- **Operating Temperature Range:** -20°C to +85°C  
- **Package Type:** DIP-18, SO-18  

### **Descriptions:**  
- The ULQ2803A is designed for interfacing between low-level logic and high-power loads.  
- Each channel includes a Darlington pair with integrated suppression diodes for inductive loads.  
- Suitable for driving relays, lamps, solenoids, and other high-current devices.  
- Open-collector outputs allow flexible voltage supply configurations.  

### **Features:**  
- **High-Voltage Outputs:** Supports up to 50V per channel.  
- **High-Current Capability:** 500mA per channel.  
- **Integrated Clamp Diodes:** Protects against inductive kickback.  
- **TTL/CMOS Compatible Inputs:** Works with 5V logic.  
- **Common Cathode Clamp Diodes:** Simplifies circuit design.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

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

Partnumber Manufacturer Quantity Availability
ULQ2803A ALLEGRO 16 In Stock

Description and Introduction

EIGHT DARLINGTON ARRAYS The ULQ2803A is manufactured by Allegro MicroSystems. Below are the specifications, descriptions, and features based on the available knowledge:

### **Specifications:**  
- **Type:** Darlington Transistor Array  
- **Number of Channels:** 8  
- **Output Current (per channel):** 500 mA (max)  
- **Output Voltage (max):** 50 V  
- **Input Voltage (max):** 30 V  
- **Logic Compatibility:** TTL, CMOS, PMOS  
- **Package Options:** DIP-18, SOIC-18 (W)  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
- The ULQ2803A is an 8-channel high-voltage, high-current Darlington transistor array.  
- It is designed for interfacing between low-level logic and high-power loads.  
- Each channel includes a clamp diode for inductive load protection.  

### **Features:**  
- **High-Voltage Outputs:** Up to 50 V.  
- **High-Current Drive:** 500 mA per channel.  
- **Integrated Clamp Diodes:** For inductive transient suppression.  
- **TTL/CMOS/PMOS Compatible Inputs:** Allows direct interfacing with logic circuits.  
- **Common-Cathode Clamp Diodes:** Simplifies circuit design for inductive loads.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

For detailed electrical characteristics and application notes, refer to the official Allegro datasheet.

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