A2982SLWTR [ALLEGRO]
Buffer/Inverter Based Peripheral Driver, 8 Driver, 0.35A, BIPolar, PDSO20, SOIC-20;
| 型号： | A2982SLWTR |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | Buffer/Inverter Based Peripheral Driver, 8 Driver, 0.35A, BIPolar, PDSO20, SOIC-20 驱动 光电二极管 接口集成电路 驱动器 |
| 文件： | 总8页 (文件大小：348K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
A2982
8-Channel Source Driver
Features and Benefits
Description
▪ TTL, DTL, PMOS, or CMOS compatible inputs
▪ 500 mA output source current capability
▪ Transient-protected outputs
Recommendedforhigh-sideswitchingapplicationsthatbenefit
fromseparatelogicandloadgrounds,thesedevicesencompass
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.
▪ Output breakdown voltage to 50 V
▪ DIP or SOIC packaging
Alldevicesmaybeusedwith5Vlogicsystems—TTL,Schottky
TTL, DTL, and 5 V CMOS. The device packages offered are
electrically interchangeable, and will withstand a maximum
output off voltage of 50V, and operate to a minimum of 5V.All
devices in this series integrate input current limiting resistors
and output transient suppression diodes, and are activated by
an active high input.
Package: 20-pin SOICW (suffix LW)
Not to scale
The package is a 20-pin wide-body SOIC with improved
thermal characteristics compared to the 18-pin SOIC version
it replaces (100% pin-compatible electrically).
The package is lead (Pb) free, with 100% matte-tin leadframe
plating.
(drop-in replacement for discon-
tinued 18-pin SOIC variants)
Simplified Block Diagram
(NC pins, 10 and 11, not present
on discontinued 18-pin LW package)
29310U
A2982
8-Channel Source Driver
Selection Guide
Part Number
Package
Packing
Ambient Temperature
TA (°C)
A2982SLWTR-T
20-pin SOICW
1000 per reel
–20 to 85
Absolute Maximum Ratings
Characteristic
Symbol
VCE
Notes
Rating
5 to 50
20
Units
V
Output Voltage Range
Input Voltage
VIN
V
Output Current
IOUT
–500
mA
–
Package Power Dissipation
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
PD
See graph
–
TA
Range S
–20 to 85
150
ºC
ºC
ºC
TJ(max)
T
stg
–55 to 150
2.5
2.0
1.5
20-LE AD S OIC, R JA = 90 C/W
1.0
0.5
0
25
50
75
100
125
150
AMB IE NT TE MPE R ATUR E
C
Allegro MicroSystems, LLC
115 Northeast Cutoff
2
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
One of Eight Drivers
Typical electrosensitive
printer application
R
R
R
L
L
L
IN
1
1
2
3
20
19
18
IN
2
IN
3
R
R
R
R
R
L
L
L
L
L
IN
4
5
17
16
4
IN
5
IN
6
7
15
14
6
IN
7
IN
13
12
11
8
9
8
V
S
NC
NC
10
Pins 10 and 11 can float; other pins
match discontinued 18-pin SOIC: 1 to 9
same, pins 12 to 20 match pins 10 to 18
Allegro MicroSystems, LLC
115 Northeast Cutoff
3
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
ELECTRICAL CHARACTERISTICS1,2 at TA = +25°C (unless otherwise specified).
Characteristic
Symbol
Test Conditions
Test Fig.
Min.
Typ.
Max.
20
Units
μA
V
Output Leakage Current3
Output Sustaining Voltage
ICEX
VIN = 0.4 V, VS = 50 V
1
—
2
—
—
VCE(SUS) IOUT = -45 mA
VIN = 2.4 V, IOUT = -100 mA
35
—
—
—
1.6
1.7
1.8
140
1.25
1.8
1.9
2.0
200
1.93
V
Collector-Emitter
Saturation Voltage
VCE(SAT) VIN = 2.4 V, IOUT = -225 mA
VIN = 2.4 V, IOUT = -350 mA
2
—
V
2
—
V
VIN = 2.4 V
IIN(ON)
3
—
μA
mA
Input Current
VIN = 12 V
3
—
Output Source Current
(Outputs Open)
lOUT
VIN = 2.4 V, VCE = 2.0 V
2
-350
—
—
mA
Supply Current Leakage
Current
IS
IR
VIN = 2.4 V*, VS = 50 V
VR = 50 V, VIN = 0.4 V*
IF = 350 mA
4
5
6
—
—
—
—
—
10
50
mA
μA
V
Clamp Diode Current
Clamp Diode Forward
Voltage
VF
1.5
2.0
Turn-On Delay
Turn-Off Delay4
tON
0.5 EIN to 0.5 EOUT, RL = 100Ω, VS = 35 V
—
—
—
—
0.3
2.0
2.0
10
μs
μs
tOFF
0.5 EIN to 0.5 EOUT, RL = 100Ω, VS = 35 V, See Note
1Negative current is defined as coming out of (sourcing) the specified device terminal.
2All unused inputs must be connected to ground. Pull-down resistors (approximately 10 kΩ) are recommended for inputs that are al-
lowed to float while power is being applied to VS.
3All inputs simultaneously.
4Turn-off delay is influenced by load conditions. Systems applications well below the specified output loading may require timing con-
siderations for some designs, i.e., multiplexed displays or when used in combination with sink drivers in a totem pole configuration.
Allegro MicroSystems, LLC
115 Northeast Cutoff
4
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
TEST FIGURES
Figure 1
Figure 2
Figure 3
V
VS
VS
S
VCE
V
IIN
mA
mA
OPEN
IOUT
V
V
V
IN
μA
IN
IN
I
CEX
Dwg. No. A-11,083
Dwg. No. A-11,084
Dwg. No. A-11,085
Figure 4
Figure 5
Figure 6
VS
OPEN
VS
IR
I
S mA
μA
OPEN
OPEN
I
V
V
V
F
F
IN
V
IN
Dwg. No. A-11,086
Dwg. No. A-11,087
Dwg. No. A-11,088
Allegro MicroSystems, LLC
115 Northeast Cutoff
5
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
Allowable peak collector current
as a function of duty cycle
500
450
400
500
450
400
RECOMMENDED MAXIMUM OUTPUT CURRENT
RECOMMENDED MAXIMUM OUTPUT CURRENT
350
300
350
300
3
3
4
4
250
200
150
100
250
200
150
100
5
6
5
7
8
6
NUMBER OF OUTPUTS
CONDUCTING
7
8
SIMULTANEOUSLY
NUMBER OF OUTPUTS
CONDUCTING
SIMULTANEOUSLY
VS = 15 V
V
= 15 V
S
50
0
50
0
10
30
70
10
30
40
70
20
50
60
20
50
60
0
40
80
90
100
0
80
90
100
PER CENT DUTY CYCLE
PER CENT DUTY CYCLE
Dwg. No. A-11,107B
Dwg. No. A-11,108B
Input current as a function
of input voltage
2.5
2.0
1.5
MAXIMUM
TYPICAL
1.0
0.5
8
4
6
2
10
12
INPUT VOLTAGE (VOLTS)
Dwg. No. A-11,115B
Allegro MicroSystems, LLC
115 Northeast Cutoff
6
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
LW Package, 20-Pin SOICW
12.80±0.20
4° ±4
0.27
20
20
+0.07
–0.06
2.25
10.30±0.33
7.50±0.10
9.50
A
+0.44
–0.43
0.84
0.25
1
2
1
2
0.65
1.27
PCB Layout Reference View
B
20X
C
SEATING PLANE
GAUGE PLANE
SEATING
PLANE
0.10
C
1.27
0.41 ±0.10
2.65 MAX
0.20 ±0.10
Terminal #1 mark area
For Reference Only
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
B
Reference pad layout (reference IPC SOIC127P1030X265-20M)
All pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances
Allegro MicroSystems, LLC
115 Northeast Cutoff
7
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
A2982
8-Channel Source Driver
Revision History
Revision
Revision Date
Description of Revision
Rev. U
April 30, 2012
Update product availability
Copyright ©1977-2013, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit
improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the
information being relied upon is current.
Allegro’s products are not to be used in any devices or systems, including but not limited to life support devices or systems, in which a failure of
Allegro’s product can reasonably be expected to cause bodily harm.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its use;
nor for any infringement of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, LLC
115 Northeast Cutoff
8
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
相关型号：
A2984SLWTR
Buffer/Inverter Based Peripheral Driver, 8 Driver, 0.35A, BIPolar, PDSO20, SOIC-20
ALLEGRO
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