Part Number: ULN2803A

Function: Darlington Transistor Arrays

Package: SOP 18 Pin

Manufacturer: Texas Instruments

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Description

The ULN2803A device is a high-voltage, high-current Darlington transistor array. The device consists of eight npn Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for
switching inductive loads. The collector-current rating of each Darlington pair is 500 mA.Types of Logic pairs may be connected in parallel for higher current capability. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers, and logic buffers.

Logic Diagram

Features

1. 500-mA-Rated Collector Current (Single Output)
2. High-Voltage Outputs: 50 V
3. Output Clamp Diodes
4. Inputs Compatible With Various Types of Logic

Applications

1. Relay Drivers
2. Hammer Drivers
3. Lamp Drivers
4. Display Drivers (LED and Gas Discharge)
5. Line Drivers
6. Logic Buffers
7. Stepper Motors
8. IP Camera
9. HVAC Valve and LED Dot Matrix

Other data sheets are available within the file: ULN2803ADW

ULN2803A Datasheet PDF Download

Part Number: ULN2003AG

Function: High Voltage, High Current Darlington Transistor Arrays

Manufacturer: ON Semiconductor

Pinouts:

Description

The seven NPN Darlington connected transistors in these arrays are well suited for driving lamps, relays, or printer hammers in a variety of industrial and consumer applications. Their high breakdown voltage and internal suppression diodes insure freedom from problems associated with inductive loads. Peak inrush currents to 500 mA permit them to drive incandescent lamps.

The ULx2003A with a 2.7 kseries input resistor is well suited for systems utilizing a 5.0 V TTL or CMOS Logic.

ULN2003AG Datasheet PDF Download

Other data sheets are available within the file: ULN2003ADR2G, ULQ2003ADR2G, ULQ2003AG