ULN2803A
DARLINGTON TRANSISTOR ARRAY
SLRS049C - FEBRUARY1997 - REVISED AUGUST 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
500-mA Rated Collector Current (Single
Output)
D
High-Voltage Outputs . . . 50 V
D
Output Clamp Diodes
D
Inputs Compatible With Various Types of
Logic
D
Relay Driver Applications
D
Compatible with ULN2800A Series
description/ordering information
The ULN2803A is a high-voltage, high-current Darlington
transistor array. The device consists of eight npn Darlington pairs
that feature high-voltage outputs with common-cathode clamp
diodes for switching inductive loads. The collector-current rating of
each Darlington pair is 500 mA. The Darlington pairs may be
connected in parallel for higher current capability.
Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line
drivers, and logic buffers. The ULN2803A has a 2.7-k
series base resistor for each Darlington pair for operation
directly with TTL or 5-V CMOS devices.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP (N)
Tube of 20
ULN2803AN
ULN2803AN
-40
C to 85
C
SOIC (DW)
Tube of 40
ULN2803ADW
ULN2803A
-40 C to 85 C
SOIC (DW)
Reel of 2000
ULN2003ADWR
ULN2803A
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2004, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
1B
2B
3B
4B
5B
6B
7B
8B
GND
1C
2C
3C
4C
5C
6C
7C
8C
COM
DW OR N PACKAGE
(TOP VIEW)
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
ULN2803A
DARLINGTON TRANSISTOR ARRAY
SLRS049C - FEBRUARY1997 - REVISED AUGUST 2004
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings at 25
C free-air temperature (unless otherwise noted)
Collector-emitter voltage
50 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage (see Note 1)
30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous collector current
500 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp diode current
500 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total substrate-terminal current
-2.5 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
JA
(see Notes 2 and 3): DW package
TBD
C/W
. . . . . . . . . . . . . . . . . . . . . . . .
N package
TBD
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature, T
J
150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
-65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. All voltage values, unless otherwise noted, are with respect to the emitter/substrate terminal GND.
2. Maximum power dissipation is a function of TJ(max),
JA, and TA. The maximum allowable power dissipation at any allowable
ambient temperature is PD = (TJ(max) - TA)/
JA. Operating at the absolute maximum TJ of 150
C can affect reliability.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
electrical characteristics at 25
C free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICEX
Collector cutoff current
VCE = 50 V,
See Figure 1
II = 0,
50
A
II(off)
Off-state input current
VCE = 50 V,
TA = 70
C,
IC = 500
A,
See Figure 2
50
65
A
II(on)
Input current
VI = 3.85 V,
See Figure 3
0.93
1.35
mA
VCE = 2 V,
IC = 200 mA
2.4
VI(on)
On-state input voltage
VCE = 2 V,
See Figure 4
IC = 250 mA
2.7
V
VI(on)
On-state input voltage
See Figure 4
IC = 300 mA
3
V
II = 250
A,
See Figure 5
IC = 100 mA,
0.9
1.1
VCE(sat)
Collector-emitter saturation voltage
II = 350
A,
See Figure 5
IC = 200 mA,
1
1.3
V
II = 500
A,
See Figure 5
IC = 350 mA,
1.3
1.6
IR
Clamp diode reverse current
VR = 50 V,
See Figure 6
50
A
VF
Clamp diode forward voltage
IF = 350 mA,
See Figure 7
1.7
2
V
Ci
Input capacitance
VI = 0 V,
f = 1 MHz
15
25
pF
switching characteristics at 25
C free-air temperature
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
VS = 50 V,
RL = 163
,
130
ns
tPHL
Propagation delay time, high- to low-level output
VS = 50 V,
CL = 15 pF,
RL = 163
,
See Figure 8
20
ns
VOH
High-level output voltage after switching
VS = 50 V,
See Figure 9
IO
300 mA,
VS - 20
mV
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