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High current transistor array BL ULN2803 designed for controlling relays solenoids and LED displays

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High current transistor array BL ULN2803 designed for controlling relays solenoids and LED displays

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Model Number :	ULN2803

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High current transistor array BL ULN2803 designed for controlling relays solenoids and LED displays

Product Overview

The ULN2803 is a high-voltage, high-current Darlington transistor array featuring eight open-collector common-emitter pairs, each capable of handling 500 mA. Designed for driving a wide range of loads, including solenoids, relays, DC motors, and LED displays, these arrays offer high-voltage outputs up to 50V and include output clamp diodes for inductive load driving. The inputs are compatible with various logic types, and the pin configuration simplifies board layout. Available in SOP18 and QFN20(4x4) packages, the ULN2803 is ideal for relay-driver applications and high-power buffering.

Product Attributes

Brand: Belling
Model Series: ULN2803

Technical Specifications

Parameter	Model	Min	Typ	Max	Unit
Features
Collector Current (single output)	ULN2803	-	-	500	mA
High-Voltage Outputs	ULN2803	-	-	50	V
Absolute Maximum Ratings
Collector to emitter voltage	ULN2803	-	-	50	V
Clamp diode reverse voltage	ULN2803	-	-	50	V
Input voltage	ULN2803	-	-	30	V
Peak collector current	ULN2803	-	-	500	mA
Output clamp current	ULN2803	-	-	500	mA
Total emitter-terminal current	ULN2803	-2.5	-	-	A
Operating free-air temperature range	ULN2803	-30	-	105	C
Operating virtual junction temperature	ULN2803	-	-	150	C
Storage temperature range	ULN2803	-40	-	150	C
Recommended Operating Conditions
Collector to Emitter voltage	ULN2803	-	-	50	V
Electrical Characteristics (TA=+25, unless otherwise specified)
On-state input voltage	ULN2803	-	-	2.4	V
Collector-emitter saturation voltage	ULN2803	-	0.9	1.1	V
Collector cutoff current	ULN2803	-	-	50	A
Clamp forward voltage	ULN2803	-	-	1.7	V
Off-state input current	ULN2803	50	-	-	A
Input current	ULN2803	-	0.93	1.35	mA
Clamp reverse current	ULN2803	-	-	50	A
Input capacitance	ULN2803	-	15	25	pF
Switching Characteristics (TA = +25C, unless otherwise specified)
Propagation delay time, low- to high-level output	ULN2803	-	0.25	1	s
Propagation delay time, high- to low-level output	ULN2803	-	0.25	1	s
High-level output voltage after switching	ULN2803	-	-	VS20mV	-
Ordering Information
Order No.	Package	Packing	Quantity
ULN2803	SOP18	Tape and Reel	1500
ULN2803QN	QFN20(4x4)	Tape and Reel	3000

2405201656_BL-ULN2803_C22437476.pdf

High current transistor array BL ULN2803 designed for controlling relays solenoids and LED displays

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