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

ULN2803A

OBSOLETE

50-V, 8-ch darlington array

Order now
Data sheet
ULN2803A is no longer in production
This product is no longer in production. New designs should consider an alternate product.
open-in-new Compare alternates
Similar functionality to the compared device
ULN2803C ACTIVE 50-V, eight-channel darlington array Replacement

ULN2803A

OBSOLETE
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) 18 118.965 mm² 11.55 x 10.3
  • 500-mA-Rated Collector Current (Single Output)
  • High-Voltage Outputs: 50 V
  • Output Clamp Diodes
  • Inputs Compatible With Various Types of Logic
  • 500-mA-Rated Collector Current (Single Output)
  • High-Voltage Outputs: 50 V
  • Output Clamp Diodes
  • Inputs Compatible With Various Types of Logic

The ULN2803A device is a 50 V, 500 mA 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. The Darlington 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. The ULN2803A device has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.

The ULN2803A device is a 50 V, 500 mA 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. The Darlington 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. The ULN2803A device has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 5-V CMOS devices.
filter Find other Low-side switches
Download

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 ULN2803A Darlington Transistor Arrays datasheet (Rev. H) PDF | HTML 14 Feb 2017

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