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2981 and 2982 8-Channel Source Drivers

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

2981 and 2982 8-Channel Source Drivers
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
Description
Packages:
18-pin DIP (suffix A)
18- and 20-pin SOICW (suffix LW)
Not to scale
Simplified Block Diagram
18-pin A Package
29310L
20-pin LW Package (NC pins omitted for 18-pin package)
2981 and 2982
8-Channel Source Drivers
Selection Guide1
Part Number Pb-free Package Packing Ambient Temperature (°C)
A2982ELW-T A2982ELWTR-T A2982SLW-T A2982SLWTR-T UDN2981A-T UDN2982A-T
1Pb-based
Yes Yes Yes Yes Yes Yes
20-pin SOICW 20-pin SOICW 20-pin SOICW 20-pin SOICW 18-pin DIP 18-pin DIP
37 per tube -40 to 85 1000 per reel 37 per tube 1000 per reel -20 to 85 21 per tube 21 per tube
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. 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. Status change April 30, 2007. Deadline for receipt of LAST TIME BUY orders: August 24, 2007 these variants include: UDN2982LW, UDN2982LW-T, UDN2982LWTR, UDN2982LWTR-T, UDQ2982LW-T, and UDQ2982LWTR-T.
Absolute Maximum Ratings
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
One of Eight Drivers
18-P IN DIP , R
20-LE AD S OIC , R
Dwg. G P -022-4A
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
1Negative 2All
Typ. - - 1.6 1.7 1.8 140 310 140 1.25 - - - - 1.5 1.0 5.0
Max. 200 - 1.8 1.9 2.0 200 450 200 1.93 - - 10 50 2.0 2.0 10
lOUT IS IR VF tON tOFF
2981 2982 All All All All All
current is defined as coming out of (sourcing) the specified device terminal.
inputs simultaneously.
3Turn-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.
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
TEST FIGURES
Figure 1
Figure 2 VS
Figure 3
mA OPEN
Dwg. No. A-11, 083
Dwg. No. A-11, 084
Dwg. No. A-11, 085
Figure 4
Figure 5
Figure 6
Dwg. No. A-11, 086
Dwg. No. A-11, 087
Dwg. No. A-11, 088
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
Allowable peak collector current as a function of duty cycle
UDN2981A and UDN2982A
ALLOWABLE PEAK COLLECTOR CURRENT IN mA AT 50°C
RECOMMENDED MAXIMUM OUTPUT CURRENT 350
ALLOWABLE PEAK COLLECTOR CURRENT IN mA AT 70°C
400 RECOMMENDED MAXIMUM OUTPUT CURRENT 350
NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY
150 NUMBER OF OUTPUTS CONDUCTING SIMULTANEOUSLY
50 60 40 PER CENT DUTY CYCLE
Dwg. No. A-11, 107B
Dwg. No. A-11, 108B
Input current as a function of input voltage
Typical electrosensitive printer application
ELECTRODES
INPUT CURRENT, IIN (mA)
IN5 IN 6 IN7
IN8 VS
INPUT VOLTAGE (VOLTS)
Dwg. No. A-11, 115B
Dwg. No. A-11, 113A
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
A Package, 18-Pin DIP
0.900 18 0.010 0.250 A 1 2 0.430 0.300
0.210 MAX 0.130 0.005 0.060 0.018 0.100
All dimensions nominal, not for tooling use (reference JEDEC MS-001 AC) Dimensions in inches Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown A Terminal #1 mark area
LW Package, 18-Pin SOICW
7.50 A
18X 0.10 C 0.41 1.27 0.20
SEATING PLANE 2.65 MAX
SEATING PLANE GAUGE PLANE
All dimensions nominal, not for tooling use Dimensions in millimeters (reference JEDEC MS-013 AB) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown A Terminal #1 mark area
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com
2981 and 2982
8-Channel Source Drivers
LW Package, 20-Pin SOICW
7.50 A
20X 0.10 C 0.41 1.27 0.20 All dimensions nominal, not for tooling use Dimensions in millimeters (reference JEDEC MS-013 AC) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions Exact case and lead configuration at supplier discretion within limits shown A Terminal #1 mark area
SEATING PLANE 2.65 MAX
SEATING PLANE GAUGE PLANE
Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000 www.allegromicro.com