ST ULN2003A

继电器，螺线管驱动器7不需要500mA

Overview

The ULN2003AP / AFW Series are high−voltage, high−current darlington drivers comprised of seven NPN darlington pairs.All units feature integral clamp diodes for switching inductive loads.Applications include relay, hammer, lamp and display (LED) drivers.

● Output current (single output) 500 mA MAX.● High sustaining voltage output 50 V MIN.● Output clamp diodes● Inputs compatible with various types of logic● Package Type−AP : DIP−16pin● Package Type−AFW : SOL−16pin

Features

  Module configuration: 7 NPN

Voltage, Vceo:50V

Collector DC current: 500mA

DC current gain hFE:1000

Operating temperature range:-20 °C to + 85 °C

Encapsulation type: PDIP

Number of pins: 16

Encapsulation type: DIP

Number of transistors: 7

Surface mount device: through hole mount device label: 2003

Maximum continuous current, Ic:500mA

Chip label: 2003

Maximum input voltage: 30V

Input type: 5V TTL CMOS

Maximum output voltage: 50V

Maximum output current: 0.6A

Applications

driving circuit of stepper motor.