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UDN2985A from ALLEGRO

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UDN2985A

Manufacturer: ALLEGRO

8-CHANNEL SOURCE DRIVER

Partnumber Manufacturer Quantity Availability
UDN2985A ALLEGRO 200 In Stock

Description and Introduction

8-CHANNEL SOURCE DRIVER The UDN2985A is manufactured by **Allegro MicroSystems**.  

### **Specifications:**  
- **Type:** 8-Channel Source Driver (High-Current)  
- **Output Current:** 500 mA per channel (sink)  
- **Output Voltage:** Up to 50 V  
- **Logic Input Compatibility:** TTL/CMOS  
- **Supply Voltage (VBB):** 4.5 V to 35 V  
- **Power Dissipation:** 2.5 W (with heatsink)  
- **Package:** 18-pin DIP (Plastic)  

### **Descriptions:**  
The UDN2985A is a high-current, high-voltage peripheral driver designed for interfacing between low-level logic and high-power loads. It features eight independent Darlington transistor pairs with common emitters, capable of driving inductive loads such as relays, solenoids, and lamps.  

### **Features:**  
- **Eight Darlington Channels** (500 mA each)  
- **Built-in Clamp Diodes** for inductive load protection  
- **TTL/CMOS-Compatible Inputs**  
- **High-Voltage Outputs** (up to 50 V)  
- **Thermal Shutdown Protection**  
- **Output Enable Control** for all channels  

This device is commonly used in industrial control, automation, and other applications requiring high-power switching.

Partnumber Manufacturer Quantity Availability
UDN2985A A 50 In Stock

Description and Introduction

8-CHANNEL SOURCE DRIVER The UDN2985A is a peripheral driver manufactured by Allegro MicroSystems. Here are the key specifications, descriptions, and features:

### **Specifications:**  
- **Output Current:** 500 mA per channel (sink)  
- **Output Voltage:** 50 V  
- **Number of Channels:** 8 (8-bit)  
- **Logic Compatibility:** TTL, CMOS  
- **Supply Voltage (VCC):** 4.5 V to 36 V  
- **Input Voltage (VIH):** 2.0 V (min)  
- **Input Voltage (VIL):** 0.8 V (max)  
- **Power Dissipation:** 2.25 W (max)  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
- The UDN2985A is an 8-channel source driver designed for high-voltage, high-current peripheral driving applications.  
- It is commonly used for driving relays, solenoids, lamps, and other inductive or resistive loads.  
- The device includes built-in clamp diodes for inductive load protection.  

### **Features:**  
- **High-Voltage Outputs:** Up to 50 V  
- **High-Current Capability:** 500 mA per channel  
- **TTL/CMOS-Compatible Inputs**  
- **Output Clamp Diodes** for inductive transient suppression  
- **Common-Cathode Clamp Diode** for each output  
- **Thermal Shutdown Protection**  
- **Wide Operating Voltage Range (4.5 V to 36 V)**  

This information is based on the manufacturer's datasheet for the UDN2985A.

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