Home Power management Power switches Low-side switches
Home
Power management
Power switches
Low-side switches

ULN2803C

ACTIVE

50-V, eight-channel darlington array

Order now
Data sheet

ULN2803C

ACTIVE
Data sheet Order now

Product details

Drivers per package 8 Switching voltage (max) (V) 50 Output voltage (max) (V) 50 Peak output current (A) 0.5 Delay time (typ) (ns) 130 Input compatibility CMOS, TTL Vol at lowest spec current (typ) (mV) 900 Iout/ch (max) (mA) 500 Iout_off (typ) (µA) 50 Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Imax (A) 0.5 Device type Low-side switches Function Automotive load dump compatibility, Inductive load compatibility
Drivers per package 8 Switching voltage (max) (V) 50 Output voltage (max) (V) 50 Peak output current (A) 0.5 Delay time (typ) (ns) 130 Input compatibility CMOS, TTL Vol at lowest spec current (typ) (mV) 900 Iout/ch (max) (mA) 500 Iout_off (typ) (µA) 50 Rating Catalog Operating temperature range (°C) -40 to 85 FET Internal Imax (A) 0.5 Device type Low-side switches Function Automotive load dump compatibility, Inductive load compatibility
SOIC (DW) 20 131.84 mm² 12.8 x 10.3
  • 500mA-rated collector current (single output)
  • High-voltage outputs: 50V
  • Output clamp diodes
  • Inputs compatible with various types of logic
  • 500mA-rated collector current (single output)
  • High-voltage outputs: 50V
  • Output clamp diodes
  • Inputs compatible with various types of logic

The ULN2803C device is a 50V, 500mA 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 500mA. The Darlington pairscan 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. The ULN2803C device has a 2.7kΩ series base resistor for each Darlington pair for operation directly with TTL or 5V CMOS devices.

The ULN2803C device is a 50V, 500mA 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 500mA. The Darlington pairscan 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. The ULN2803C device has a 2.7kΩ series base resistor for each Darlington pair for operation directly with TTL or 5V CMOS devices.
open-in-new Find other Low-side switches
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet ULN2803C Darlington Transistor Array datasheet (Rev. A) PDF | HTML 15 Mar 2024

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Request
Package Pins Download
SOIC (DW) 20 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos