Ideally suited for interfacing between low-level logic circuitry and
multiple peripheral power loads, the Series LR2003A/L high-voltage,
high-current Darlington arrays feature continuous load current ratings
to 500 mA for each of the seven drivers. At an appropriate duty cycle
depending on ambient temperature and number of drivers turned ON
simultaneously, typical power loads totaling over 120 W (350 mA x 7,
50 V) can be controlled. Typical loads include relays, solenoids,
stepping motors, magnetic print hammers, multiplexed LED and
incandescent displays, and heaters. All devices feature open-collector
outputs with integral clamp diodes.
The LR2003A/L 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 LR2003A/L are the standard Darlington Array. The outputs
are capable of sinking 500 mA and will withstand at least 50V in the
OFF state.Outputs may be paralleled for higher load current capability.
These Darlington arrays are furnished in 16-pin dual in-line plastic
packages (suffix “A”) and 16-lead surface-mountable SOICs (suffix
“L”). All devices are pinned with outputs opposite inputs to facilitate
ease of circuit board layout. All devices are rated for operation over the
temperature range of -40°C to +85°C.
FEATURES
■ 5V TTL, CMOS-Compatible Inputs
■
Output Current to 500 mA
■
Output Voltage to 50 V
■
Transient-Protected Outputs
■ Dual In-Line Plastic Package or Small-Outline IC Package
HIGH-VOLTAGE, HIGH-CURRENT
DARLINGTON ARRAYS
16
15
14
13
12
611
710
89
1
2
3
4
5
Note that the LR2003A series (dual in-line
package) and LR2003L series (small-outline
IC package) are electrically identical and share
a common terminal number assignment.
ABSOLUTE MAXIMUM RATINGS
Output Voltage, V
CE
50 V
Input Voltage, V
IN
................................ 30 V
Continuous Output Current,
I
C
................................................. 500 mA
Continuous Input Current, I
IN
........... 25 mA
Power Dissipation, P
D
(one Darlington pair).....................
1.0 W
(total package) ....................... See Graph
Operating Temperature Range,
T
A
.................................. -40°C to +85°C
Storage Temperature Range,
T
S
................................. -55°C to +150°C
LESHAN RADIO COMPANY, LTD.
LR2003A/L
...........................
Ver 1.5 Aug 2009
1/8
COM
7.2K
3K
2.7K
50 75 100 125 150
2.5
0.5
0
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
AMBIENT TEMPERATURE IN °
C
2.0
1.5
1.0
25
SUFFIX 'L', R = 90°
C/W
θ
JA
SUFFIX 'A', R = 60
°
C/W
θ
JA
LR2003A/L (Each Driver)
PARTIAL SCHEMATICS
LESHAN RADIO COMPANY, LTD.
Recomm end ed Operating Condi tions
(Ta = −40 t o 85 ° C )
Characteristic Symbol Test Condition Min Typ. Max Unit
Output voltage V
CE
0 ⎯
50 V
Duty
= 10% 0
⎯ 350
A
Duty =
50% 0 ⎯ 100
Duty
=
10% 0
⎯
300
Output current
L
I
C
T
pw
=
25 ms
7 Circuits
Ta = 85°C
T
j
=
120°
C
Duty
=
50% 0
⎯
90
mA/ch
Input voltage V
IN
0
⎯
24 V
2.8 ⎯ 24
Input voltage
(output on)
V
IN
(ON)
I
OUT
=
400 mA
h
FE
= 800
V
0
⎯
0.7
Input voltage
(output off)
V
IN
(OFF)
V
Clamp diode reverse voltage V
R
⎯
⎯
50 V
Clamp diode forward current I
F
⎯
⎯
350 mA
A
=
85°C
⎯
⎯
0.76
Power dissipation
L
P
D
Ta
=
85°C
⎯
⎯
0.65
W
Ta
Ver 1.5 Aug 2009
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