ULN2804A
High Voltage High Current Darlington Arrays

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The ULN2801A-ULN2805Aeach contain eight darlington transistors with common emitters and integral suppression diodes for inductive loads. Each darlington features a peak load current rating of 600mA (500mA continuous) and can withstand at least50V in the off state. Outputsmaybe paralleled for higher current capability.

Five versions are available to simplify interfacing to standard logic families : the ULN2801Ais designed for  eneralpurpose applicationswith a current limit resistor ; theULN2802Ahas a 10.5kW inputresistor and zenerfor 14-25VPMOS; theULN2803Ahas a 2.7kW input resistor for 5V TTL and CMOS ; the ULN2804A has a 10.5kW input resistor for 6-15V CMOS and the ULN2805A is designed to sink a minimum of 350mA for standard and Schottky TTL
where higher output current is required.

All types are supplied in a 18-lead plastic DIP with a copperleadfromandfeaturethe convenientinputopposite- outputpinout to simplify board layout.

Symbol

Parameter

Value

Unit

Vo

Output Voltage

50

V

Vi

Input Voltage
     for ULN2802A, UL2803A, ULN2804A
     for ULN2805A

30
15

V

IC

Continuous Collector Current

500

mA

IB

Continuous Base Current

25

mA

Ptot

Power Dissipation
      (one Darlington pair)
      (total package)

1.0
2.25

W

Tamb

Operating Ambient Temperature Range

-20 to 105

Tstg

Storage Temperature Range

-55 to 150

Tj

Junction Temperature Range

-20 to 150

·EIGHTDARLINGTONS WITHCOMMONEMITTERS
·OUTPUT CURRENT TO 500 mA .OUTPUT VOLTAGE TO50 V
·INTEGRAL SUPPRESSIONDIODES
·VERSIONS FOR ALL POPULARLOGIC FAMILIES
·OUTPUT CAN BE PARALLELED
·INPUTS PINNED OPPOSITE OUTPUTS TO
·SIMPLIFYBOARDLAYOUT

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Datasheet

Size: 272.32KB
Page: 11
PDF: ULN2804A.pdf
  • Description:
    High Voltage High Current Darlington Arrays
  • MFG:
    ALLEGRO [Allegro MicroSystems]
 

Abstract


NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a
product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The information
included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor
for any infringements of patents or other rights of third parties which may result from its use.
Recommended Substitutions:
High Voltage High Current Darlington Arrays
A2803
Date of status change: May 2, 2005
Deadline for receipt of LAST TIME BUY orders: October 28, 2005
These parts are in production but have been determined to be
LAST TIME BUY. This classification indicates that the product is
obsolete and notice has been given. Sale of this device is currently
restricted to existing customer applications. The device should not be
purchased for new design applications because of obsolescence in the
near future. Samples are no longer available.
Last Time Buy

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