Home Power management Low-side switches
Home
Power management
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.
ULN2003AI ACTIVE 50-V, 7-ch darlington transistor array, -40 to 105C Replacement
ULN2003A ACTIVE 50V 7-ch darlington transistor array Replacement

ULN2003B

OBSOLETE
Data sheet Order now

Product details

Drivers per package 7 Switching voltage (max) (V) 50 Rating Catalog Operating temperature range (°C) -40 to 105 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
Drivers per package 7 Switching voltage (max) (V) 50 Rating Catalog Operating temperature range (°C) -40 to 105 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
PDIP (N) 16 181.42 mm² (19.3 mm × 9.4 mm) TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm) SOIC (D) 16 59.4 mm² (9.9 mm × 6 mm)
  • 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

No results found. Please clear your search and try again.
View all 1
Top documentation Type Title Format options Date
* Data sheet ULN2003B High-Voltage, High-Current Darlington Transistor Array datasheet (Rev. B) PDF | HTML Aug 16, 2016

Ordering & quality