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Allegro
Allegro MicroSystems
ULN2803A_ HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS

HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON ARRAYS

Featuring continuous load current ratings to 500 mA for each of the drivers, the Series ULN28xxA/LW and ULQ28xxA/LW high voltage, high-current Darlington arrays are ideally suited for interfacing between low-level logic circuitry and multiple peripheral power loads. Typical power loads totaling over 260 W (350 mA x 8, 95 V) can be controlled at an appropriate duty cycle depending on ambient temperature and number of drivers turned on simultaneously. Typical loads include relays, solenoids, stepping motors, magnetic print hammers, multiplexed LED and incandescent displays, and heaters. All devices feature open-collector outputs with integral clamp diodes.

FEATURES
■ TTL, DTL, PMOS, or CMOS Compatible Inputs
■ Output Current to 500 mA
■ Output Voltage to 95 V
■ Transient-Protected Outputs
■ Dual In-Line Package or Wide-Body Small-Outline Package


other parts : 2803_  2824_  A2803_  A2804_  ULN2803LW_  ULN2804A_  ULN2804LW_  ULN2823A_  ULN2823LW_  ULN2824A_  
ULN2803A_ PDF
ST-Microelectronics
STMicroelectronics
ULN2803A_12 Eight Darlington array

Description
The ULN2801A, ULN2802A, ULN2803A and ULN2804A each contain eight Darlington transistors with common emitters and integral suppression diodes for inductive loads. Each Darlington features a peak load current rating of 600 mA (500 mA continuous) and can withstand at least 50 V in the OFF state. Outputs may be paralleled for higher current capability.
Four versions are available to simplify interfacing to standard logic families: the ULN2801A is designed for general purpose applications with a current limit resistor; the ULN2802A has a 10.5 kΩ input resistor and Zener for 14-25 V PMOS; the ULN2803A has a 2.7 kΩ input resistor for 5 V TTL and CMOS; the ULN2804A has a 10.5 kΩ input resistor for 6-15 V CMOS.
All types are supplied in an 18-lead plastic DIP with a copper lead form and feature the

Features
■ Eight Darlington transistors with common emitters
■ Output current to 500 mA
■ Output voltage to 50 V
■ Integral suppression diodes
■ Versions for all popular logic families
■ Output can be paralleled
■ Inputs pinned opposite outputs to simplify board layout


other parts : ULN2801A_12  ULN2802A_12  ULN2804A_12  
ULN2803A_12 PDF

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