ULN2803A (ACTIVE)

Darlington Transistor Array

Recommended alternative parts

  • TPL7407L  -  Better power efficiency, lower leakage and operating temperature range up to 125C

Description

The ULN2803A device is a high-voltage, high-current 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.

Features

  • 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
  • Compatible with ULN2800A Series

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Parametrics Compare all products in Peripheral Driver and Actuator

 
Drivers Per Package
Switching Voltage (Max) (V)
Peak Output Current (mA)
Delay Time (Typ) (ns)
Output Voltage (Max) (V)
Input Compatibility
Vol@Lowest Spec Current (Typ) (mV)
Iout/ch (Max) (mA)
Iout_off (Typ) (uA)
Rating
Pin/Package
Approx. Price (US$)
ULN2803A ULN2003A ULN2003AI ULN2003B ULN2003LV ULN2003V12 ULN2004A ULN2004AI ULQ2004A ULQ2004A-Q1
8     7     7     7     7     7     7     7     7     7    
50     50     50     50     8     16     50     50     50     50    
500     500     500     500     1000     1000     500     500     500     500    
130     250     250     250     80     80     250     250     1000     1000    
50     50     50     50     8     16     50     50     50     50    
CMOS
TTL    
CMOS
TTL    
CMOS
TTL    
CMOS
TTL    
CMOS     CMOS     CMOS     CMOS
TTL    
CMOS     CMOS    
900     900     900     900     260     600     900     900     900     900    
500     500     500     500     140     140     500     500     500     500    
50     50     50     50     0.17     0.5     50     50     50     50    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Automotive    
18PDIP
18SOIC    
16PDIP
16SO
16SOIC
16TSSOP    
16PDIP
16SO
16SOIC
16TSSOP    
16PDIP
16SOIC
16TSSOP    
16SOIC
16TSSOP    
16SOIC
16TSSOP    
16PDIP
16SO
16SOIC    
16PDIP
16SO
16SOIC    
16PDIP
16SOIC    
16SOIC    
0.50 | 1ku     0.21 | 1ku     0.24 | 1ku     0.22 | 1ku     0.38 | 100u     0.16 | 1ku     0.22 | 1ku     0.24 | 1ku     0.24 | 1ku     0.24 | 1ku    
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