Part # ULN2801A ULN2802A ULN2803A ULN28 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: ight Darlington arrays

Part Details:

ULN2801A ULN2802A - ULN2803A ® ULN2804A - ULN2805A EIGHT DARLINGTON ARRAYS .EIGHT DARLINGTONS WITH COMMON EMIT- TERS .OUTPUT CURRENT TO 500 mA .OUTPUT VOLTAGE TO 50 V .INTEGRAL SUPPRESSION DIODES .VERSIONS FOR ALL POPULAR LOGIC FAMI- LIES .OUTPUT CAN BE PARALLELED .INPUTS PINNED OPPOSITE OUTPUTS TO SIMPLIFY BOARD LAYOUT DIP18 PIN CONNECTION (top view) DESCRIPTION The ULN2801A-ULN2805A each contain eight dar-lington transistors with common emitters and inte-gral suppression diodes for inductive loads. Eachdarlington features a peak load current rating of600mA (500mA continuous) and can withstand atleast 50V in the off state. Outputs may be paralleledfor higher current capability.Five versions are available to simplify interfacing tostandard logic families : the ULN2801A is designedfor general purpose applications with a current limitresistor ; the ULN2802A has a 10.5k input resistorand zener for 14-25V PMOS ; the ULN2803A has a2.7k input resistor for 5V TTL and CMOS ; theULN2804A has a 10.5k input resistor for 6-15VCMOS and the ULN2805A is designed to sink aminimum of 350mA for standard and Schottky TTLwhere higher output current is required.All types are supplied in a 18-lead plastic DIP witha copper lead from and feature the convenient input-opposite-output pinout to simplify board layout. September 2003 1/8 ULN2801A - ULN2802A - ULN2803A - ULN2804A - ULN2805A SCHEMATIC DIAGRAM AND ORDER CODES For ULN2801A (each driver for PMOS-CMOS) For ULN2802A (each driver for 14-15 V PMOS) For ULN2803A (each driver for 5 V, TTL/CMOS) For ULN2804A (each driver for 6-15 VCMOS/PMOS For ULN2805A (each driver for high out TTL) 2/8 ULN2801A - ULN2802A - ULN2803A - ULN2804A - ULN2805A ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Vo Output Voltage 50 V Vi Input Voltage V for ULN2802A, UL2803A, ULN2804A 30 for ULN2805A 15 IC Continuous Collector Current 500 mA IB Continuous Base Current 25

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ULN2801A ULN2802A ULN2803A ULN28.pdf Datasheet