STMicroelectronics-ULN2068B
| Part # | STMicroelectronics-ULN2068B |
Download  | STMicroelectronics-ULN2068B |
ULN2064B, ULN2066B
ULN2068B, ULN2074B
50 V – 1.5 A quad Darlington switches
Features
■
Output current to 1.5 A for each Darlington
■
Minimum breakdown 50 V
■
Sustaining voltage at least 35 V
■
Integral suppression diodes (ULN2064B,
ULN2066B and ULN2068B
■
Isolated Darlington pinout (ULN2074B)
PowerDIP-16
■
Versions compatible with all popular logic
families
Description
Designed to interface logic to a wide variety of
high current, high voltage loads, these devices
each contain four NPN Darlington switches
delivering up to 1.5 A with a specified minimum
breakdown of 50 V and a sustaining voltage of 35
V measured at 100 mA. The ULN2064B,
ULN2066B and ULN2068B contain integral
suppression diodes for inductive loads have
common emitters. The ULN2074B feature
isolated Darlington pinouts and is intended for
applications such as emitter follower
configurations. Inputs of the ULN2064B,
ULN2068B and ULN2074B are compatible with
popular 5 V logic families and the ULN2066B are
compatible with 6 – 15 V CMOS and PMOS.
T
y
pe
ULN2068B includes a pre-driver stage to reduce
loading on the control logic.
Table 1.
Device summary
Part numbers
Package
ULN2064B
ULN2066B
ULN2068B
ULN2074B
PowerDIP-16
PowerDIP-16
PowerDIP-16
PowerDIP-16
January 2009
Rev 2
1/14
14
Contents
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Contents
1
2
3
4
5
6
7
8
9
Diagram .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Electrical characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Test circuits
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical applications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Revision history
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Diagram
1
Diagram
Figure 1.
Schematic diagrams
ULN2064B: R
IN
= 350
Ω
ULN2066B: R
IN
= 3k
Ω
ULN2068B: R
IN
= 2.5k
Ω
, R
S
= 900
Ω
ULN2074B: R
IN
= 350
Ω
3/14
Pin configuration
ULN2064B, ULN2066B, ULN2068B, ULN2074B
2
Pin configuration
Figure 2.
Pin connections (top view)
ULN2064B
ULN2066B
ULN2068B
ULN2074B
4/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Maximum ratings
3
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
V
CEX
V
CE(SUS)
I
O
Parameter
Value
Unit
Output voltage
50
35
1.75
30
15
25
10
4.3
1
V
V
A
Output sustaining voltage
Output current
Input voltage ULN2066B – 2074B
Input voltage ULN2064B – 2068B
Input current
V
I
V
I
I
mA
V
V
S
Supply voltage for ULN2068B
Power dissipation at T
PINS
= 90 °C
Power dissipation at T
AMB
= 70 °C
Operating ambient temperature range
Storage temperature
P
TOT
W
T
AMB
T
STG
– 20 to 85
°
C
°
C
– 55 to 150
5/14
Electrical characteristics
ULN2064B, ULN2066B, ULN2068B, ULN2074B
4
Electrical characteristics
Table 3.
Symbol
Electrical characteristics
(
T
A
= 25 °C unless otherwise specified).
Parameter
Test condition
V
CE
= 50
V
,
T
A
= 25°C
Min.
Typ. Max.
Unit
100
500
Output leakage current
I
CEX
µA
V
CE
= 50
V
,
T
A
= 70°C
I
C
= 100mA, V
I
= 0.4V
Collector-emitter sustaining
V
CE(SUS)
35
V
V
I
C
= 500mA, I
B
= 325µA
I
C
= 750mA, I
B
= 935µA
I
C
= 1A, I
B
= 1.25mA
I
C
= 1.25A, I
B
= 2mA
1.1
1.2
1.3
1.4
Collector-emitter saturation
V
CE(SAT)
for ULN2064B and ULN2074B
V
I
= 2.4V
V
I
= 3.75V
1.4
3.3
4.3
9.6
for ULN2066B,
V
I
= 5V
V
I
= 12V
I
I(ON)
0.6
1.7
1.8
5.2
mA
for ULN2068B,
V
I
= 2.75V
V
I
= 3.75V
0.55
1.0
V
CE
= 2
V
,
I
C
= 1A
ULN2064B, ULN2074B,
ULN2066B
2
6.5
V
CE
= 2
V
,
I
C
= 1.5A
ULN2064B, ULN2074B,
ULN2066B
V
2.5
10
ULN2068B
2.75
for ULN2068B, V
I
= 2.75
V
,
I
C
= 500mA
I
S
6
mA
t
PLH
t
PHL
T
u
rn-on delay time
T
u
rn-off delay time
0.5 V
I
to 0.5V
O
0.5 V
I
to 0.5V
O
1
µs
µs
1.5
For ULN2064B – ULN2066B –
ULN2068B, V
R
= 50V
T
A
= 25°C
Clamp diode leakage current
I
R
µA
V
50
100
T
A
= 70°C
For ULN2064B – ULN2066B –
ULN2068B
I
F
= 1A
Clamp diode forward voltage
V
F
1.75
2
I
F
= 1.5A
Note:
Input voltage is with reference to the substrate (no connection to any other pins) for the
ULN2074B reference is ground for all other types.
Note:
1
Input current may be limited by maximum allowable input voltage.
6/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Test circuits
5
Test circuits
Figure 3.
Output leakage current
Figure 4.
Collector-emitter sustaining voltage
Figure 5.
Collector-emitter saturation voltage
Figure 6.
Input current (ON)
Figure 7.
Input voltage
Figure 8.
Clamp diode leakage current
7/14
Test circuits
Figure 9.
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Figure 10.
Supply current
Clamp diode forward voltage
Figure 11.
Input current as a function of input
Figure 12.
Input current as a function of input
voltage
voltage
Figure 13.
Collector current as a function of
input current
8/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Mounting instructions
6
Mounting instructions
The R
can be reduced by soldering the GND pins to a suitable copper area of the printed
thJA
and the R
as a
TOT
thJA
mils).
During soldering the pins temperature must not exceed 260 °C and the soldering time must
not be longer than 12 seconds.
The external heatsink or printed circuit copper area must be connected to electrical ground.
Figure 14.
Example of
P
.
C. board area which is
Figure 15.
External heatsink mounting
used as heatsink
example
Figure 16.
Maximum dissipated power and
junction to ambient thermal
Figure 17.
Maximum allowable power
dissipation vs. ambient
temperature
resistance vs. side “
α
”
9/14
Typical applications
ULN2064B, ULN2066B, ULN2068B, ULN2074B
7
Typical applications
Figure 18.
Common-anode LED drivers
Figure 19.
Common-cathode LED drivers
10/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
Package mechanical data
8
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECO
P
ACK® packages, depending on their level of environmental compliance. ECO
P
ACK®
ECO
P
ACK® is an ST trademark.
11/14
Package mechanical data
ULN2064B, ULN2066B, ULN2068B, ULN2074B
mm
inch.
Dim.
OUTLINE AND
MECHANICAL DATA
Min.
0.51
0.
8
5
Typ. Max.
Min.
Typ. Max.
a
1
B
b
0.020
1.40 0.0
33
0.055
0.020
0.50
b
1
D
E
e
0.
38
0.50 0.015
20.0
0.020
0.7
8
7
8
.
8
0
2.54
0.
3
46
0.100
e
3
F
17.7
8
0.700
7.10
5.10
0.2
8
0
I
0.201
L
3
.
3
0
0.1
3
0
PowerDIP-16
Z
1.27
0.050
12/14
ULN2064B, ULN2066B, ULN2068B, ULN2074B
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