2981 AND
2982
UDN2981A
1
2
3
4
5
6
7
8
V
S
18
17
16
15
14
13
12
11
GND
8-CHANNEL SOURCE DRIVERS
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 UDN2981A, UDN2982A, and A2982SLW are
electrically interchangeable, 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’ (all devices) 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’ (UDN2982LW only) indicates an 18-lead surface-
mountable wide-body SOIC package; the A2982SLW is provided in a 20-lead
wide-body SOIC package with improved thermal characteristics.
The UDN2982A, UDN2982LW, and A2982SLW drivers are also
available for operation over an extended temperature range to -40°C. To
order, change the prefix ‘UDN’ to ‘UDQ’ or the suffix ‘SLW’ to ‘ELW’.
These packages are available in Pb (lead) free variants (suffix ‘-T’), with
100% matte-tin leadframe plating.
Data Sheet
29310k
Dwg. No. A-10, 243
Note that the UDN2980A series (dual in-line
package) and UDN2980LW series (small-outline
IC package) are electrically identical and share a
common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
at 25°C Free-Air Temperature
Output Voltage Range, V
CE
. . . . . .
5 V to 50 V
Input Voltage, V
IN
UDN2981A . . . . . . . . . . . . . . . . . . . . . . . .
15 V
UDN2982A, UDN2982LW, and,
A2982SLW . . . . . . . . . . . . . . . . . . . . . . .
20 V
Output Current, I
OUT
. . . . . . . . . . . . . .
-500 mA
Package Power Dissipation,
P
D
. . . . . . . . . . . . . . . . . . . . . . .
See Graph
Operating Temperature Range,
T
A
. . . . . . . . . . . . . . . . . . . .
-20°C to +85°C
Storage Temperature Range,
T
S
. . . . . . . . . . . . . . . . . . .
-55°C to +150°C
FEATURES
■
■
■
■
■
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
Always order by complete part number, e.g.,
UDN2981A-T
.
Note that all devices are not available in all package styles.
2981
AND
2982
8-CHANNEL
SOURCE DRIVERS
Selection Guide
Part Number
Pb-free
1
Package
Packing
Ambient Temperature
(°C)
–40 to 85
A2982ELW-T
Yes
20-pin SOICW
37 per tube
A2982ELWTR-T
Yes
20-pin SOICW
1000 per reel
–40 to 85
A2982SLW-T
Yes
20-pin SOICW
37 per tube
–20 to 85
A2982SLWTR-T
Yes
20-pin SOICW
1000 per reel
–20 to 85
UDN2981A-T
Yes
18-pin DIP
21 per tube
–20 to 85
UDN2982A-T
Yes
18-pin DIP
21 per tube
–20 to 85
UDN2982LW-T
Yes
18-pin SOICW
41 per tube
–20 to 85
UDN2982LWTR-T
Yes
18-pin SOICW
1000 per reel
–20 to 85
UDQ2982LW-T
Yes
18-pin SOICW
41 per tube
–40 to 85
UDQ2982LWTR-T
1
Yes
18-pin SOICW
1000 per reel
–40 to 85
Pb-based variants are being phased out of the product line. Some variants cited in this footnote are in production but have been
determined to be LAST TIME BUY or NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently
restricted to existing customer applications. The variants should not be purchased for new design applications because
obsolescence in the near future is probable. Samples are no longer available. For LAST TIME BUY: status change: October 31,
2006. Deadline for receipt of LAST TIME BUY orders: April 27, 2007. These variants include: A2982ELW, A2982ELWTR,
A2982SLW, A2982SLWTR, UDN2981A, and UDN2982A. For NOT FOR NEW DESIGN: status change: May 1, 2006. These
variants include: UDN2982LW and UDN2982LWTR.
2
1.5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
2981
AND
2982
8-CHANNEL
SOURCE DRIVERS
ELECTRICAL CHARACTERISTICS at T
A
= +25
°
C (unless otherwise specified).
Applicable
Characteristic
Output Leakage Current
Output Sustaining
Voltage
Collector-Emitter
Saturation Voltage
Input Current
Symbol
I
CEX
V
CE(SUS)
V
CE(SAT)
Devices
All
All
All
Test Conditions
V
IN
= 0.4 V*, V
S
= 50 V, T
A
= +70°C
I
OUT
= -45 mA
V
IN
= 2.4 V, I
OUT
= -100 mA
V
IN
= 2.4 V, I
OUT
= -225 mA
V
IN
= 2.4 V, I
OUT
= -350 mA
V
IN
= 2.4 V
V
IN
= 3.85 V
V
IN
= 2.4 V
V
IN
= 12 V
V
IN
= 2.4 V, V
CE
= 2.0 V
V
IN
= 2.4 V, V
CE
= 2.0 V
V
IN
= 2.4 V*, V
S
= 50 V
V
R
= 50 V, V
IN
= 0.4 V*
I
F
= 3 5 0 m A
0.5 E
IN
to 0.5 E
OUT
, R
L
= 100Ω,
V
S
= 35 V
0.5 E
IN
to 0.5 E
OUT
, R
L
= 100Ω,
V
S
= 35 V, See Note
Test
Fig.
1
—
2
2
2
3
3
3
3
2
2
4
5
6
—
—
Min.
—
35
—
—
—
—
—
—
—
-350
-350
—
—
—
—
—
Limits
Typ.
—
—
1.6
1.7
1.8
140
310
140
1.25
—
—
—
—
1.5
0.3
2.0
Max.
200
—
1.8
1.9
2.0
200
450
200
1.93
—
—
10
50
2.0
2.0
10
Units
µA
V
V
V
V
µA
µA
µA
mA
mA
mA
mA
µA
V
µs
µs
I
IN(ON)
UDN2981A
2982†
Output Source Current
(Outputs Open)
Supply Current
Leakage Current
Clamp Diode
Clamp Diode
Turn-On Delay
Turn-Off Delay
l
OUT
UDN2981A
2982†
I
S
I
R
V
F
t
ON
t
OFF
All
All
All
All
All
NOTES: Turn-off delay is influenced by load conditions. Systems applications well below the specified output loading may require
timing considerations for some designs, i.e., multiplexed displays or when used in combination with sink drivers in a totem
pole configuration.
All unused inputs must be connected to ground. Pulldown resistors (≈ 10 kΩ) are recommended for inputs that
are allowed to float while power is being applied to V
S
.
Negative current is defined as coming out of (sourcing) the specified device terminal.
* All inputs simultaneously.
† Complete part number includes a prefix (A or UDN) and a suffix (A or SLW) as follows:
UDN2981A, UDN2982A, UDN2982LW, or A2982SLW.
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3
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