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

ULN2003B

OBSOLETE

50-V, 7-ch darlington array with 3-V input capability and low cost

Order now
Data sheet
ULN2003B is no longer in production
This product is no longer in production. New designs should consider an alternate product.
open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
ULN2003A ACTIVE 50V 7-ch darlington transistor array Replacement
ULN2003AI ACTIVE 50-V, 7-ch darlington transistor array, -40 to 105C Replacement

ULN2003B

OBSOLETE
Data sheet Order now

Product details

Drivers per package 7 Switching voltage (max) (V) 50 Output voltage (max) (V) 50 Peak output current (A) 0.5 Delay time (typ) (ns) 250 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 105 FET Internal Imax (A) 0.5 Device type Low-side switches Function Automotive load dump compatibility, Inductive load compatibility
Drivers per package 7 Switching voltage (max) (V) 50 Output voltage (max) (V) 50 Peak output current (A) 0.5 Delay time (typ) (ns) 250 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 105 FET Internal Imax (A) 0.5 Device type Low-side switches Function Automotive load dump compatibility, Inductive load compatibility
  • Greater Than 4x Reduction in Output Leakage (ICEX) over ULN2003A
  • 500-mA Rated Collector Current (Single Output)
  • High-Voltage Outputs 50 V
  • Output Clamp Diodes
  • Inputs Compatible With Various Types of Logic
  • Relay-Driver Applications
  • Greater Than 4x Reduction in Output Leakage (ICEX) over ULN2003A
  • 500-mA Rated Collector Current (Single Output)
  • High-Voltage Outputs 50 V
  • Output Clamp Diodes
  • Inputs Compatible With Various Types of Logic
  • Relay-Driver Applications

The ULN2003B device is a high-voltage, high-current Darlington transistor array. This device consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability.

The ULN2003B has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or CMOS devices.

The ULN2003B device is a high-voltage, high-current Darlington transistor array. This device consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. The collector-current rating of a single Darlington pair is 500 mA. The Darlington pairs can be paralleled for higher current capability.

The ULN2003B has a 2.7-kΩ series base resistor for each Darlington pair for operation directly with TTL or 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 ULN2003B High-Voltage, High-Current Darlington Transistor Array datasheet (Rev. B) PDF | HTML 16 Aug 2016

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