ULN2804A
DARLINGTON TRANSISTOR ARRAY
SLLS311 – JUNE 1998
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
HIGH-VOLTAGE, HIGH-CURRENT DARLINGTON TRANSISTOR ARRAY
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
The ULN2804A is a monolithic high-voltage, high-current Darlington transistor array, comprising eight npn
Darlington pairs. All units feature high-voltage outputs with common-cathode clamp diodes for switching
inductive loads. The collector-current rating of each Darlington pair is 500 mA. Outputs and inputs can each be
paralleled for higher current capability.
Applications include relay drivers, hammer drivers, lamp drivers, display drivers (LED and gas discharge), line
drivers, and logic buffers.
The ULN2804A has an approximate 10.5-kΩ series input resistor to allow its operation directly from CMOS or
PMOS, utilizing supply voltages of 6 to 15 volts.
The ULN2804A is characterized for operation from –20°C to 85°C.
schematic (each Darlington pair)
COM
Output C
E
Input B
10.5k
7.2k 3k
Copyright 1998, Texas Instruments Incorporated
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.
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.
N DUAL-IN-LINE PACKAGE
(TOP VIEW)
2C
2B
3C
3B
4C
4B
5C
5B
6C
6B
7C
7B
8C
8B
1C
1B
COM
GND
23 4 56 7 8
19
17 16 15 14 13 12 11
18 10
ULN2804A
DARLINGTON TRANSISTOR ARRAY
SLLS311 – JUNE 1998
2POST 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous dissipation (total package) at (or below) 25°C free air temperature (see Note 2) 1150 mW. . . . .
Operating free-air temperature range –20°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1/16 inch from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTES: 1. All voltages values, unless otherwise noted, are with respect to the emitter/substrate terminal E.
2. For operation above 25°C free-air temperature, refer to the Dissipation Derating Curves in the Thermal Information section.
electrical characteristics at 25°C free-air temperature (unless otherwise noted)
PARAMETER
TEST
TEST CONDITIONS
ULN2804A
UNIT
PARAMETER
FIGURE
TEST
CONDITIONS
MIN TYP MAX
UNIT
1 VCE = 50 V, II = 0 50
ICEX Collector cutoff current 2TA = 70°C, VI = 1 V,
VCE = 50 V 500 µA
II(off) Of f-state input current 3 VCE = 50 V, IC = 500 µA,
TA = 70°C50 65 µA
VI = 3.85 V
II(ON) Input current 4 VI = 5 V 0.35 0.5 mA
()
VI = 12 V 1.0 1.45
VCE = 2 V, IC = 125 mA 5
VCE = 2 V, IC = 200 mA 6
VI( )
On state in
p
ut voltage
6
VCE = 2 V, IC = 250 mA
V
V
I(on)
On
-
state
inp
u
t
v
oltage
6
VCE = 2 V, IC = 275 mA 7
V
VCE = 2 V, IC = 300 mA
VCE = 2 V, IC = 350 mA 8
C ll t itt t ti
II = 250 µA, IC = 100 mA 0.9 1.1
VCE(sat) Collector-emitter saturation
voltage
5II = 350 µA, IC = 200 mA 1.0 1.3 V
()
voltage
II = 500 µA, IC = 350 mA 1.3 1.6
IRClamp-diode reverse current 7 VR = 50 V 50 µA
VFClamp-diode forward voltage 8 IF = 350 mA 1.7 2 V
CiInput 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
See Figure 9
0.25 1 µs
tPHL Propagation delay time, high- to low-level output
See
Fig
u
re
9
0.25 1 µs
VOH High-level output voltage after switching VS = 50 V, IO = 300 mA, See Figure 10 VS – 20 mV
ULN2804A
DARLINGTON TRANSISTOR ARRAY
SLLS311 – JUNE 1998
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Open VCE
ICEX
Figure 1. ICEX
Open VCE
ICEX
Figure 2. ICEX
Open VI
Open VCE
IC
Figure 3. II(off)
Open
Figure 4. II(on)
VI
II(off) II
Open
Open
Figure 5. hFE, VCE(sat)
IIIC
VCE
hFE
+
IC
II
Open
Figure 6. VI(on)
IC
VCE
VI
VR
Figure 7. IR
Open
IR
Open
IF
Figure 8. VF
VF
ULN2804A
DARLINGTON TRANSISTOR ARRAY
SLLS311 – JUNE 1998
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% 50%
50% 50%
tPHL tPLH
Input
Output
VOLTAGE WAVEFORMS
Pulse
Generator
(see Note A)
Input Open VS = 50 V
RL = 163 Ω
CL = 15 pF
(see Note B)
Output
TEST CIRCUITS
NOTES: A. The pulse generator has the following characteristics: PRR = 12.5 KHz, ZO = 50 Ω.
B. CL includes probe and jig capacitance.
Figure 9. Propagation Delay Times
ULN2804A
DARLINGTON TRANSISTOR ARRAY
SLLS311 – JUNE 1998
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
1.5 V 10%
Input
Output
VOLTAGE WAVEFORMS
VIH
(see Note C)
0 V
VOH
1.5 V
90% 90%
10%
40 µs
< 5 ns < 10 ns
NOTES: A. The pulse generator has the following characteristics: PRR = 12.5 kHz, Zout = 50 Ω.
B. CL includes probe and jig capacitance.
C. VIH = 8 V
Pulse
Generator
(See Note A)
Input
2804A CL = 15 pF
(see Note B)
VS
2 mH
200 Ω
Output
Figure 10. Latch-Up Test
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Copyright 1998, Texas Instruments Incorporated
