Texas Instruments ULN2803ADWG4 Darlington Driver SO18

Texas Instruments
MPN
ULN2803ADWG4
Order Code
82-0669

Discontinued


A high-current Darlington transistor array consisting of eight NPN Darlington pairs that feature high-voltage outputs with Common-Cathode clamp diodes for switching inductive loads. Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line drivers and logic buffers.
  • Darlington transistor array
  • 8x Drivers
  • CMOS
  • TTL Input compatibility
  • 500mA Peak output current
  • 50V Output voltage
  • 50V Switching voltage
  • 130ns Delay time
  • Working temperature -40°C to +85°C
  • DIL-18 Case
Type Darlington
Height 2.65mm
Input Compatibility CMOS, TTL
Length 11.75mm
Operating Temperature Range -40 to +85°C
Package/Case 18-SOIC
Width 7.6mm

Questions

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Question by: Product code: 82-0669

Q. Would this be one of the best choices to buffer the action of Raspberry Pi pin(s) when defined as output. Is this 100% safe way of protecting the Pi even if the Pi pin is accidently redefined as an input pin when still wired as an output pin. Thank you.

A. Hi N Chettleburgh. Thank you for your question. This should be fine to use when configured as an output. If left in the circuit and re-configured as an input, because of the high impedance we would think that it would do nothing and should not harm the Raspberry Pi.


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