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quality Darlington transistor array with 8 channels BORN ULN2803A supporting TTL and 5 volt CMOS logic inputs factory
quality Darlington transistor array with 8 channels BORN ULN2803A supporting TTL and 5 volt CMOS logic inputs factory

Darlington transistor array with 8 channels BORN ULN2803A supporting TTL and 5 volt CMOS logic inputs

Key Attributes
Model Number: ULN2803A
Product Custom Attributes
Current - Collector(Ic):
500mA
Collector - Emitter Voltage VCEO:
50V
Mfr. Part #:
ULN2803A
Package:
SOP-18
Product Description

Product Overview

The ULN2803A is an 8-channel Darlington transistor array designed for high-voltage and high-current applications. Each channel features a 500-mA collector current rating and 50-V outputs, with integrated common-cathode clamp diodes for switching inductive loads. The device includes a 2.7-k series base resistor per channel, enabling direct operation with TTL or 5-V CMOS logic. Its versatility makes it suitable for driving relays, lamps, stepper motors, and display drivers, among other applications.

Product Attributes

  • Brand: Texas Instruments (implied by www.born-tw.com and TI recommendations)

Technical Specifications

Parameter Details Unit
Product Name ULN2803A
Device Type Darlington Transistor Array
Number of Channels 8
Collector Current (Single Output) 500 mA
High-Voltage Outputs 50 V
Output Clamp Diodes Included (Common-cathode)
Input Compatibility Various types of logic (e.g., TTL, 5-V CMOS)
Series Base Resistor 2.7 k
Collector-Emitter Voltage (VCE) 0 to 50 V
Ambient Temperature (TA) -40 to 85 C
Junction Temperature (TJ) -65 to 150 C
Storage Temperature (Tstg) -65 to 150 C
ESD Rating (HBM) 2000 V
ESD Rating (CDM) 500 V
Junction-to-Ambient Thermal Resistance (RJA) (DW Package) 66.4 C/W
Collector Cutoff Current (ICEX) 50 (max) A
Off-State Input Current (II(off)) 65 (max) A
On-State Input Current (II(on)) 0.93 to 1.35 (typ) mA
On-State Input Voltage (VI(on)) 2.4 (typ) V
Collector-Emitter Saturation Voltage (VCE(sat)) 0.9 to 1.6 (typ, varies with current) V
Clamp Diode Reverse Current (IR) 50 (max) A
Clamp Diode Forward Voltage (VF) 1.7 to 2 (typ) V
Input Capacitance (Ci) 15 to 25 (typ) pF
Propagation Delay (tPLH) 130 (typ) ns
Propagation Delay (tPHL) 20 (typ) ns
High-Level Output Voltage (VOH) VS 20 (min) mV
Package Type SOP (DW)
Package Dimensions (SOP) 11.55 mm 7.50 mm (Nominal)
Package Type QFN4x4
Package Dimensions (QFN4x4) 4.0 mm 4.0 mm (Nominal)

2410121848_BORN-ULN2803A_C5148497.pdf

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