ULQ2804A Allegro MicroSystems Darlington Array Data Sheet
Download PDF datasheet for Allegro MicroSystems ULQ2804A High-Voltage High-Current Darlington Array (EN) 10 pages 29304.3D / 29304.3E 1998/1999 zip
Description
This PDF datasheet is for the Allegro ULQ2804A Darlington Array.
About the Item
Allegro MicroSystems ULQ2804A High-Voltage High-Current Darlington Array
Featuring continuous load current ratings to 500 mA for each of the drivers, the Series ULQ28xxA highvoltage, 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.
The ULx2804A have series input resistors for operation directly from 6 V to 15 V CMOS or PMOS logic outputs.
The ULx2804A are the standard Darlington arrays. The outputs are capable of sinking 500 mA and will withstand at least 50 V in the OFF state. Outputs may be paralleled for higher load current capability.
These Darlington arrays are furnished in 18-pin dual in-line plastic packages (suffix “A”). All devices are pinned with outputs opposite inputs to facilitate ease of circuit board layout. Prefix “ULQ” devices are rated for operation to -40 deg C.
(PDF) DATASHEET (ENGLISH)
SUMMARY OF CONTENTS
INTERNAL DIAGRAM
PINOUT
ABSOLUTE MAXIMUM RATINGS
– Output Voltage
– Input Voltage
– Continuous Output Current
– Continuous Input Current
– Power Dissipation
– Operating Temperature Range
– Storage Temperature Range
FEATURES
DEVICE PART NUMBER DESIGNATION
PARTIAL SCHEMATICS
ELECTRICAL CHARACTERISTICS
TEST FIGURES
ALLOWABLE COLLECTOR CURRENT AS A FUNCTION OF DUTY CYCLE
INPUT CURRENT AS A FUNCTION OF INPUT VOLTAGE
SATURATION VOLTAGE AS A FUNCTION OF COLLECTOR CURRENT
COLLECTOR CURRENT AS A FUNCTION OF INPUT CURRENT
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