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2064 THRU
2069
QUAD 1.5 A DARLINGTON SWITCHES
ULN2064/65B
K1
C2
B3
GND 4
GND 5
B6
C7
K8
16 C
15 NC
14 B
13 GND
12 GND
11 B
10 NC
9C
Dwg. No. A-9765A
ABSOLUTE MAXIMUM RATINGS
at +25°C Free-Air Temperature
for Any One Driver
(unless otherwise noted)
Output Voltage, VCEX ................ See Guide
Output Sustaining Voltage,
VCE(SUS) ............................. See Guide
Output Current, IOUT (Note 1) .......... 1.75 A
Input Voltage, VIN ...................... See Guide
Input Current, IB (Note 2) .................. 25 mA
Supply Voltage,
VS (ULN2068B/LB & 2069B/LB) ... 10 V
Total Package Power Dissipation,
PD ....................................... See Graph
Operating Temperature Range,
TA ................................. -20°C to +85°C
Storage Temperature Range,
TS ................................ -55°C to -150°C
1. Allowable combinations of output current,
number of outputs conducting, and duty cycle
are shown on the following pages.
2. Input current may be limited by maximum
allowable input voltage.
High-voltage, high-current Darlington arrays ULN2064B/LB
through ULN2069B/LB are designed for interface between low-level
logic and a variety of peripheral loads such as relays, solenoids, dc and
stepper motors, magnetic print hammers, multiplexed LED and incan-
descent displays, heaters, and similar loads. Output off voltage ratings
of 50 V and 80 V are available. These quad drivers can drive resistive
loads to 480 watts (1.5 A x 80 V, 26% duty cycle). For inductive
loads, sustaining voltages of 35 V and 50 V at 100 mA are specified.
Quad drivers ULN2064B/LB, ULN2065B/LB, ULN2068B/LB,
and ULN2069B/LB are intended for use with TTL, low-speed TTL,
and 5 V MOS logic. The ULN2065B/LB and ULN2069B/LB are
selected for the 80 V minimum output breakdown specification. The
ULN2068B/LB and ULN2069B/LB have pre-driver stages and are
recommended for applications requiring high gain (low input-current
loading). Quad-driver arrays are supplied with heat-sink contact tabs
in 16-pin plastic DlPs (suffix ‘B’) and 20-lead surface-mountable wide-
body SOICs (suffix ‘LB’).
FEATURES
I TTL, DTL, MOS, CMOS Compatible Inputs
I Transient-Protected Outputs
I Loads to 480 Watts
I Heat-Sink Contact Tabs
I Automotive Capable
Always order by complete part number, e.g., ULN2064B .

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2064 THRU 2069
QUAD 1.5 A DARLINGTON
SWITCHES
5
RθJT = 6.0°C/W
4
3
SUFFIX 'B', R θJA = 43°C/W
2
1
SUFFIX 'LB', R θJA = 60°C/W
SELECTION GUIDE
Part
Number*
ULN2064B
ULN2064LB
ULN2065B
ULN2065LB
ULN2068B
ULN2068LB
ULN2069B
ULN2069LB
Max.
VCEX
50 V
80 V
Min.
VCE(SUS)
35 V
50 V
Max.
VIN
15 V
15 V
Application
TTL, DTL, Schottky TTL,
and 5 V CMOS
50 V
80 V
35 V
50 V
15 V
15 V
TTL, DTL, Schottky TTL,
and 5 V CMOS
* Suffix ‘B’ is a 16-pin DIP; ‘LB’ is a 20-lead SOIC.
0
25
50 75 100
TEMPERATURE IN °C
125 150
Dwg. GP-049-3
TEST FIGURES
OPEN
OPEN VCE
µA
ICEX
VIN
Dwg. No. A-9729A
FIGURE 1
OPEN
V
VCE
IC
Dwg. No. A-10,350
FIGURE 2
OPEN
OPEN
IIN
mA
IB IC VIN
V
VCE
OPEN
Dwg. No. A-10,349
FIGURE 3
Dwg. No. A-9732A
FIGURE 4
OPEN
VIN
V
V
VCE
IC
OPEN
VR
µA
IR
OPEN
V
VF
IF
VS OPEN
IS mA
VIN IC
Dwg. No. A-9734A
FIGURE 5
Dwg. No. A-9735A
FIGURE 6
Dwg. No. A-9736
FIGURE 7
Dwg. No. A-10,351
FIGURE 8
115 Northeast Cutoff, Box 15036
2 Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1977, 2000 Allegro MicroSystems, Inc.

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2064 THRU 2069
QUAD 1.5 A DARLINGTON
SWITCHES
PARTIAL SCHEMATIC
K1
16 C
350
B
7.2K
K
C2
15 NC
B3
14 B
C
GND 4
13 GND
GND 5
12 GND
B6
11 B
3K
Dwg. No. A-10,353C
C7
K8
10 NC
9C
Dwg. No. A-9765A
ELECTRICAL CHARACTERISTICS at +25°C (unless otherwise noted).
K1
C2
B3
GND
GND
GND
GND
4
5
6
7
B8
C9
K 10
20 C
19 NC
18 B
17 GND
16 GND
15 GND
14 GND
13 B
12 NC
11 C
Dwg. No. A-14,326
Characteristic
Output Leakage Current
Symbol
ICEX
Test
Fig.
1
Applicable
Devices
ULN2064B/LB
ULN2065B/LB
Output Sustaining Voltage
Collector-Emitter
Saturation Voltage
VCE(SUS ) 2
VCE(SAT) 3
ULN2064B/LB
ULN2065B/LB
All
Input Current
IIN(ON)
ULN2065B/LB
4 All
Input Voltage
VIN(ON)
Turn-On Delay
Turn-Off Delay
Clamp Diode Leakage Current
tPLH
tPHL
IR
5 All
ULN2064B/LB
ULN2065B/LB
— All
— All
6 ULN2064B/LB
ULN2065B/LB
Clamp Diode Forward Voltage VF
7
All
Test Conditions
VCE = 50 V
VCE = 50 V, TA = 70°C
VCE = 80 V
VCE = 80 V, TA = 70°C
IC = 100 mA, VIN = 0.4 V
IC = 100 mA, VIN = 0.4 V
IC = 500 mA, IB = 625 µA
IC = 750 mA, IB = 935 µA
IC = 1.0 A, IB = 1.25 mA
lC = 1.25 A, IB = 2.0 mA
IC = 1.5 A, IB = 2.25 mA
VIN = 2.4 V
VIN = 3.75 V
VCE = 2.0 V, IC = 1.0 A
VCE = 2.0 V, IC = 1.25 A
VCE = 2.0 V, IC = 1.5 A
0.5 Ein to 0.5 Eout
0.5 Ein to 0.5 Eout
VR = 50 V
VR = 50 V, TA = 70°C
VR = 80 V
VR = 80 V, TA = 70°C
IF = 1.0 A
IF = 1.5 A
Min.
35
50
1.4
3.3
Limits
Max. Units
100 µA
500 µA
100 µA
500 µA
—V
—V
1.1 V
1.2 V
1.3 V
1.4 V
1.5 V
4.3 mA
9.6 mA
2.0 V
2.5 V
2.5 V
1.0 µs
1.5 µs
50 µA
100 µA
50 µA
100 µA
1.75 V
2.0 V
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