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A2803 Datasheet

High Voltage High Current Darlington Arrays

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A2803
High Voltage High Current Darlington Arrays
Last Time Buy
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 This classification indicates that the product is
obsolete and notice has been given.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.
Date of status change: May 2, 2005
Deadline for receipt of LAST TIME BUY orders: October 28, 2005
Recommended Substitutions:
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
www.DataSheet4U.com
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.




Allegro MicroSystems

A2803 Datasheet Preview

A2803 Datasheet

High Voltage High Current Darlington Arrays

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2803 THRU
2824
HIGH-VOLTAGE, HIGH-CURRENT
DARLINGTON ARRAYS
1 18
2 17
3 16
4 15
5 14
6 13
7 12
8 11
9 10
Dwg. No. A-10,322A
Note that the ULx28xxA series (dual in-line
package) and ULx28xxLW series (small-
outline IC package) are electrically identical
and share a common terminal number assign-
ment.
ABSOLUTE MAXIMUM RATINGS
Output Voltage, VCE
(x2803x and x2804x) ..................... 50 V
(x2823x and x2824x) ..................... 95 V
Input Voltage, VIN .............................. 30 V
Continuous Output Current, IC .... 500 mA
Continuous Input Current, IIN ....... 25 mA
Power Dissipation, PD
(one Darlington pair) .................. 1.0 W
www.Da(ttaoStahleepta4cUk.acgoem) ..................... See Graph
Operating Temperature Range, TA
Prefix ‘ULN’ .............. -20°C to + 85°C
Prefix ‘ULQ’ ............... -40°C to +85°C
Storage Temperature Range,
TS ................................ -55°C to +150°C
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 interfac-
ing 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 ham-
mers, multiplexed LED and incandescent displays, and heaters. All
devices feature open-collector outputs with integral clamp diodes.
The ULx2803A, ULx2803LW, ULx2823A, and ULN2823LW
have series input resistors selected for operation directly with 5 V TTL
or CMOS. These devices will handle numerous interface needs —
particularly those beyond the capabilities of standard logic buffers.
The ULx2804A, ULx2804LW, ULx2824A, and ULN2824LW
have series input resistors for operation directly from 6 V to 15 V
CMOS or PMOS logic outputs.
The ULx2803A/LW and ULx2804A/LW 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. The ULx2823A/LW and ULx2824A/
LW will withstand 95 V in the off state.
These Darlington arrays are furnished in 18-pin dual in-line
plastic packages (suffix ‘A’) or 18-lead small-outline plastic packages
(suffix ‘LW’). All devices are pinned with outputs opposite inputs to
facilitate ease of circuit board layout. Prefix ‘ULN’ devices are rated
for operation over the temperature range of -20°C to +85°C; prefix
‘ULQ’ devices are rated for operation to -40°C.
FEATURES
s TTL, DTL, PMOS, or CMOS Compatible Inputs
s Output Current to 500 mA
s Output Voltage to 95 V
s Transient-Protected Outputs
s Dual In-Line Package or Wide-Body Small-Outline Package
The ULx2804, ULx2823, & ULx2824 are discontinued.
Shown for reference only.
x = Character to identify specific device. Characteristic shown applies to family
of devices with remaining digits as shown. See matrix on next page.


Part Number A2803
Description High Voltage High Current Darlington Arrays
Maker Allegro MicroSystems
Total Page 11 Pages
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