SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
Copyright 1995, Texas Instruments Incorporated
3–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
HIGH-VOLTAGE HIGH-CURRENT DARLINGTON TRANSISTOR ARRAYS
• 500-mA Rated Collector Current (Single
Output)
• High-Voltage Outputs . . . 100 V
• Output Clamp Diodes
• Inputs Compatible With Various Types of
Logic
• Relay Driver Applications
• Higher-Voltage Versions of ULN2003A and
ULN2004A, for Commercial T emperature
Range
description
The SN75468 and SN75469 are monolithic high-voltage, high-current Darlington transistor arrays. Each
consists of seven 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 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 SN75468 has a 2700-Ω series base resistor for each Darlington pair for operation directly with TTL or 5-V
CMOS. The SN75469 has a 10.5-kΩ series base resistor to allow its operation directly with CMOS or PMOS
that use supply voltages of 6 to 15 V. The required input current is below that of the SN75468.
logic symbol
†
logic diagram
7B
6B
5B
4B
3B
2B
1B
7C
6C
5C
4C
3C
2C
1C
COM
7
6
5
4
3
2
1
10
11
12
13
14
15
16
9
7C
6C
5C
4C
3C
2C
1C
COM
7
6
5
4
3
2
1
7B
6B
5B
4B
3B
2B
1B
10
11
12
13
14
15
16
9
CLAMP
†
This symbol is in accordance with ANSI/IEEE
Std91-1984 and IEC publication 617-12.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1B
2B
3B
4B
5B
6B
7B
E
1C
2C
3C
4C
5C
6C
7C
COM
(TOP VIEW)
D OR N PACKAGE
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.
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
schematic (each Darlington pair)
COM
C
E
3 kΩ7.2 kΩ
R
B
B
SN75468: RB = 2.7 kΩ
SN75469: RB = 10.5 kΩ
All resistor values shown are nominal.
absolute maximum ratings at 25°C free-air temperature (unless otherwise noted)
Collector-emitter voltage, VCE 100 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI (see Note 1) 30 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak collector current (see Figures 14 and 15) 500 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
500 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total emitter-terminal current –2.5 A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE 1: All voltage values are with respect to the emitter/substrate terminal E, unless otherwise noted.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
D 950 mW 7.6 mW/°C 608 mW
N 1150 mW 9.2 mW/°C 736 mW
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics, TA = 25°C (unless otherwise noted)
TEST
SN75468 SN75469
PARAMETER
TEST
FIGURE
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
IC = 125 mA 5
IC = 200 mA 2.4 6
p
IC = 250 mA 2.7
V
I(on)
On-state input voltage
5
V
CE
=
2 V
IC = 275 mA 7
V
IC = 300 mA 3
IC = 350 mA 8
II = 250 µA, IC = 100 mA 0.9 1.1 0.9 1.1
V
CE(sat)
Collector-emitter
6
II = 350 µA, IC = 200 mA 1 1.3 1 1.3
V
()
saturation voltage
II = 500 µA, IC = 350 mA 1.2 1.6 1.2 1.6
V
F
Clamp-diode forward
voltage
8 IF = 350 mA 1.7 2 1.7 2 V
VCE = 100 V, II = 0 50 50
I
CEX
Collector cutoff current
1
V
= 100 V,
II = 0 100 100
µA
2
CE
,
TA = 70°C
VI = 1 V 500
p
V
= 50 V, I
= 500 µA,
I
I(off)
Off-state input current
3
CE
,
TA = 70°C
C
µ ,
506550
65µA
VI = 3.85 V 0.93 1.35
I
I
Input current 4
VI = 5 V 0.35 0.5
mA
VI = 12 V 1 1.45
Clamp-diode reverse
VR = 100 V 50 50
I
R
current
7
VR = 100 V, TA = 70°C 100 100
µ
A
C
i
Input capacitance VI = 0, f = 1 MHz 15 25 15 25 pF
switching characteristics, TA = 25°C free-air temperature
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low-to-high-level output
VS = 50 V, RL = 163 Ω, CL = 15 pF,
0.25 1 µs
t
PHL
Propagation delay time, high-to-low-level output
S
See Figure 9
L
L
0.25 1 µs
V
OH
High-level output voltage after switching VS = 50 V, IO ≈ 300 mA, See Figure 10 VS–20 mV
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Figure 1. I
CEX
Figure 2. I
CEX
V
I
Open
Open
V
CE
Open
I
CEX
V
CE
I
CEX
Figure 3. I
I(off
)
Figure 4. I
I
V
I
I
I(on)
Open
I
C
I
I(off)
Open V
CE
I
C
V
CE
NOTE: II is fixed for measuring V
CE(sat)
,
variable for measuring hFE.
Figure 5. V
I(on
)
Figure 6. hFE, V
CE(sat
)
I
C
I
I
V
CE
V
CE
V
I(on)
Open
I
C
Open
hFE
=
I
C
I
I
Figure 7. I
R
Figure 8. V
F
V
F
I
F
Open
I
R
Open
V
R
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
Input
Open
VS = 50 V
RL = 163 Ω
Output
CL = 15 pF
(see Note B)
90% 90%
50% 50%
10% 10%
50%50%
t
PHL
t
PLH
0.5 µs
≤ 10 ns
≤ 5 ns
V
IH
(see Note C)
0 V
V
OH
V
OL
Input
Output
TEST CIRCUIT
VOLTAGE WAVEFORMS
Pulse
Generator
(see Note A)
Figure 9. Test Circuit and Voltage Waveforms
Input Open
V
S
200 Ω
Output
CL = 15 pF
(see Note B)
90% 90%
1.5 V 1.5 V
10% 10%
40 µs
≤ 10 ns
≤ 5 ns
V
IH
(see Note C)
0 V
V
OH
V
OL
Input
Output
TEST CIRCUIT
VOLTAGE WAVEFORMS
1N3064
2 mH
Pulse
Generator
(see Note A)
Figure 10. Latch-Up Test Circuit and Voltage Waveforms
NOTES: A. The pulse generator has the following characteristics: PRR = 12.5 kHz, ZO = 50 Ω.
B. CL includes probe and jig capacitance.
C. For testing the ’468, VIH = 3 V; for the ’469, VIH = 8 V.
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
COLLECTOR-EMITTER
SATURATION VOLTAGE
vs
COLLECTOR CURRENT
(ONE DARLINGTON)
0
IC – Collector Current – mA
2.5
800
0
100 200 300 400 500 600 700
0.5
1
1.5
2
TA = 25°C
II = 250 mA
II = 350 mA
VCE(sat) – Collector-Emitter Saturation Voltage – V
II = 350 mA
II = 250 mA
TA = 25°C
2
1.5
1
0.5
700600500400300200100
0
800
2.5
I
C(tot)
– Total Collector Current – mA
0
COLLECTOR-EMITTER
SATURATION VOLTAGE
vs
COLLECTOR CURRENT
(TWO DARLINGTONS PARALLELED)
Figure 11
Figure 12
V
CE(sat)
VCE(sat) – Collector-Emitter Saturation Voltage – V
V
CE(sat)
II = 500 mA
II = 500 mA
2.25
1.75
1.25
0.75
0.25
2.25
1.75
1.25
0.75
0.25
Figure 13
COLLECTOR CURRENT
vs
INPUT CURRENT
0
II – Input Current – mA
500
200
0
25 50 75 100 125 150 175
50
100
150
200
250
300
350
400
450
RL = 10 Ω
TA = 25°C
VS = 8 V
IC – Collector Current – mA
C
I
VS = 10 V
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
THERMAL INFORMATION
0
Duty Cycle – %
600
100
0
10 20 30 40 50 60 70 80 90
100
200
300
400
500
TA = 70°C
N = Number of Outputs
Conducting Simultaneously
N = 6
N = 7
N = 1
500
400
300
200
100
908070605040302010
0
100
600
Duty Cycle – %
0
N = 7
TA = 70°C
D P ACKAGE
MAXIMUM COLLECTOR CURRENT
vs
DUTY CYCLE
N PACKAGE
MAXIMUM COLLECTOR CURRENT
vs
DUTY CYCLE
N = 5
N = 4
N = 3
N = 2
N = 1
N = 5
N = 4
N = 3
N = 2
IC – Maximum Collector Current – mA
C
I
N = 6
Conducting Simultaneously
N = Number of Outputs
IC – Maximum Collector Current – mA
C
I
Figure 14 Figure 15
SN75468, SN75469
DARLINGTON TRANSISTOR ARRAYS
SLRS023B – DECEMBER 1976 – REVISED SEPTEMBER 1995
3–8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
SN75468
SN75468
SN75469
Lamp
Test
TTL
Output
CMOS
Output
V
CC
+V
V
DD
+V
V
CC
+V
R
P
TTL
Output
1
2
3
4
5
6
9
10
11
12
13
14
15
16
8
7
1
2
3
4
5
6
9
10
11
12
13
14
15
16
8
7
1
2
3
4
5
6
9
10
11
12
13
14
15
16
8
7
Figure 16. TTL to Load
Figure 17. Buffer for Higher Current Loads
Figure 18. Use of Pullup Resistors to
Increase Drive Current
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