UDN2981A Allegro Microsystems Inc, UDN2981A Datasheet

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UDN2981A

Manufacturer Part Number
UDN2981A
Description
IC SOURCE DRIVER 8CHAN 18-DIP
Manufacturer
Allegro Microsystems Inc
Type
High Sider
Datasheet

Specifications of UDN2981A

Input Type
Non-Inverting
Number Of Outputs
8
Current - Output / Channel
120mA
Current - Peak Output
500mA
Voltage - Supply
25V
Operating Temperature
-20°C ~ 85°C
Mounting Type
Through Hole
Package / Case
18-DIP (0.300", 7.62mm)
Polarity
NPN/PNP
Number Of Elements
8
Collector-emitter Voltage
50V
Collector Current (dc) (max)
500mA
Operating Temp Range
-20C to 85C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
18
Package Type
PDIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
On-state Resistance
-
Lead Free Status / RoHS Status
Not Compliant, Contains lead / RoHS non-compliant

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Not to scale
Features and Benefits
▪ TTL, DTL, PMOS, or CMOS compatible inputs
▪ 500 mA output source current capability
▪ Transient-protected outputs
▪ Output breakdown voltage to 50 V
▪ DIP or SOIC packaging
Packages:
29310R
20-pin SOICW (package LW)
(drop-in replacement for discon-
tinued 18-pin SOIC variants)
18-pin DIP (A Package)
18-pin DIP (Package A)
Simplified Block Diagrams
on discontinued 18-pin LW package)
Description
Recommended for high-side switching applications that benefit
from separate logic and load grounds, these devices encompass
load supply voltages to 50 V and output currents to -500 mA.
These 8-channel source drivers are useful for interfacing
between low-level logic and high-current loads. Typical loads
include relays, solenoids, lamps, stepper and/or servo motors,
print hammers, and LEDs.
All devices may be used with 5 V logic systems — TTL, Schottky
TTL, DTL, and 5 V CMOS. The device packages offered are
electrically interchangeable, and will withstand a maximum
output off voltage of 50 V, and operate to a minimum of 5 V. All
devices in this series integrate input current limiting resistors
and output transient suppression diodes, and are activated by
an active high input.
The suffix “A” indicates an 18-lead plastic dual in-line package
with copper lead frame for optimum power dissipation. Under
normal operating conditions, these devices will sustain 120 mA
continuously for each of the eight outputs at an ambient
temperature of +50°C and a supply of 15 V.
The suffix “LW” package is provided in a 20-pin wide-body
SOIC package with improved thermal characteristics compared
to the 18-pin SOIC version it replaces (100% pin-compatible
electrically). The A2982ELW driver is available for operation
over an extended temperature range, down to -40°C.
These packages are lead (Pb) free, with 100% matte-tin
leadframe plating.
(NC pins, 10 and 11, not present
20-pin SOICW (LW Package)
8-Channel Source Drivers
2981 and 2982

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UDN2981A Summary of contents

Page 1

Features and Benefits ▪ TTL, DTL, PMOS, or CMOS compatible inputs ▪ 500 mA output source current capability ▪ Transient-protected outputs ▪ Output breakdown voltage ▪ DIP or SOIC packaging Packages: Not to scale 18-pin DIP (Package ...

Page 2

... Package A2982ELWTR-T* 20-pin SOICW A2982SLWTR-T 20-pin SOICW UDN2981A-T 18-pin DIP UDN2982A-T 18-pin DIP *Variant is in production but has been determined to be LAST TIME BUY. This classification indicates that the variant is obsolete and notice has been given. Sale of the variant is currently restricted to existing customer applications ...

Page 3

DIP (A Package One of Eight Drivers Typical electrosensitive ...

Page 4

ELECTRICAL CHARACTERISTICS Characteristic Symbol Output Leakage Current I 3 CEX Output Sustaining Voltage V CE(SUS) Collector-Emitter V CE(SAT) Saturation Voltage Input Current I IN(ON) Output Source Current l OUT (Outputs Open) Supply Current Leakage I S Current ...

Page 5

Figure μ CEX Dwg. No. A-11,083 Figure OPEN V IN Dwg. No. A-11,086 8-Channel Source Drivers TEST FIGURES Figure ...

Page 6

... NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY 150 100 PER CENT DUTY CYCLE 2.5 2.0 1.5 1.0 0.5 Allowable peak collector current as a function of duty cycle UDN2981A and UDN2982A 500 450 400 RECOMMENDED MAXIMUM OUTPUT CURRENT 350 3 300 4 5 250 6 200 150 100 100 0 Dwg ...

Page 7

+0.25 1.52 –0.38 12.80±0. 20X 0.10 C 1.27 0.41 ±0.10 For Reference Only Dimensions in millimeters (Reference JEDEC MS-013 AC) Dimensions exclusive of mold flash, gate burrs, and dambar ...

Page 8

Copyright ©1977-2010, Allegro MicroSystems, Inc. The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the ...

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