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Monolithic Darlington array LANKE ULN2802 designed for high current relay and stepper motor driver circuits

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Monolithic Darlington array LANKE ULN2802 designed for high current relay and stepper motor driver circuits

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Model Number :	ULN2802

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Monolithic Darlington array LANKE ULN2802 designed for high current relay and stepper motor driver circuits

Product Description

The ULN2802 is a monolithic high-voltage, high-current Darlington array. It consists of eight independent Darlington driver circuits. Each circuit includes a free-wheeling diode, making it suitable for driving inductive loads such as relays, stepper motors, and display drivers (LEDs). Each Darlington pair can output 500mA, and paralleling them allows for higher output current capability. The ULN2802 is widely used in relay driving, lighting control, display driving, stepper motor driving, and as logic buffers. Each Darlington driver has a 2.7K base resistor, allowing direct connection to TTL/CMOS circuits at a 5V operating voltage, simplifying the handling of data that previously required standard logic buffers.

Product Attributes

Brand: Lanker Semiconductor
Origin: Shenzhen, China
Certifications: Pb-Free

Technical Specifications

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Absolute Maximum Ratings
Collector-Emitter Voltage (Pins 7~10)	VCE		-0.5		50	V
COM Pin Voltage (Pin 6)	VCOM				50	V
Input Voltage (Pins 1~4)	VI		-0.5		30	V
Collector Peak Current (per channel)	ICP				500	mA/ch
Output Clamp Diode Peak Forward Current	IOK				500	mA
Total Emitter Peak Current	IET				-1.5	A
Maximum Junction Temperature	TJ				150
Storage Temperature Range	Tstg		-60		+150
Recommended Operating Conditions
Collector-Emitter Voltage	VCE		0		50	V
Output Current (per channel)	IOUT	TPW=25ms, TA=85, TJ=120, Duty=10%	0		233	mA/ch
Output Current (per channel)	IOUT	TPW=25ms, TA=85, TJ=120, Duty=50%	0		70	mA/ch
Control Signal Input Voltage	VIN		0		24	V
Input Voltage (Output ON)	VIN(ON)	Iout=400mA, hFE=800	2.8		24	V
Input Voltage (Output OFF)	VIN(OFF)		0		0.7	V
Clamp Diode Reverse Voltage	VR				50	V
Clamp Diode Peak Forward Current	IF				350	mA
Operating Temperature Range	TA		-40		+85
Electrical Characteristics
On-State Input Voltage	VI(ON)	VCE=2V, IC=200mA	1.9	2.4		V
On-State Input Voltage	VI(ON)	VCE=2V, IC=250mA	2.0	2.7		V
On-State Input Voltage	VI(ON)	VCE=2V, IC=300mA	2.1	3		V
Collector-Emitter Saturation Voltage	VCE(SAT)	VI=2.4V, IC=30mA		0.78		V
Collector-Emitter Saturation Voltage	VCE(SAT)	VI=2.4V, IC=60mA		0.82		V
Collector-Emitter Saturation Voltage	VCE(SAT)	VI=2.4V, IC=120mA		0.9		V
Collector-Emitter Saturation Voltage	VCE(SAT)	VI=2.4V, IC=240mA		1.1		V
Collector-Emitter Saturation Voltage	VCE(SAT)	VI=2.4V, IC=350mA		1.25		V
Clamp Diode Forward Voltage	VF	IF=350mA	1.4	1.6		V
Collector Cut-off Leakage Current	ICEX	VCE=50V, II=0			50	A
Collector Cut-off Leakage Current	ICEX	VCE=50V, TA=85, VI=0V			100	A
Input Current	II	VIN=12V, IC=60mA		4		mA
Input Current	II	VIN=6V		1.7		mA
Input Current	II	VIN=4.5V		1.1		mA
Input Current	II	VIN=2.4V		0.35		mA
Clamp Diode Reverse Current	IR	VR=50V			100	A
Input Capacitance	CIN			15		pF
Propagation Delay Low-to-High	tPLH	VL=12V, RL=45		0.15	1	s
Propagation Delay High-to-Low	tPHL	VL=12V, RL=45		0.15	1	s

2510150952_LANKE-ULN2802_C2828555.pdf

Monolithic Darlington array LANKE ULN2802 designed for high current relay and stepper motor driver circuits

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