SLRS020A − DECEMBER 1978 − REVISED NOVEMBER 1995
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D OR P PACKAGE
(TOP VIEW)
Very Low Power Requirements
Very Low Input Current
Characterized for Use to 350 mA
No Output Latch-Up at 50 V (After
Conducting 300 mA)
High-Voltage Outputs (70 V Min)
Output Clamp Diodes for Transient
Suppression (350 mA, 70 V)
TTL- or MOS-Compatible Diode-Clamped
Inputs
Standard Supply Voltage
Suitable for Hammer-Driver Applications
S
1A
1Y
GND
1
8
2
7
3
6
4
5
VCC
2A
2Y
CLAMP
Function Tables
SN75446
(each AND driver)
INPUTS
description
The SN75446 and SN75447 dual peripheral
drivers are designed for use in systems that
require high current, high voltage, and fast
switching times. The SN75446 and SN75447
provide AND and NAND drivers, respectively.
These devices have diode-clamped inputs as well
as high-current, high-voltage inductive-clamp
diodes on the outputs.
A
S
OUTPUT
Y
H
L
X
H
X
L
H
L
L
SN75447
(each NAND driver)
INPUTS
A
S
OUTPUT
Y
H
L
X
H
X
L
L
H
H
H = high level, L = low level
X = irrelevant
The SN75446 and SN75447 drivers are
characterized for operation from 0°C to 70°C.
schematics of inputs and outputs
EQUIVALENT
OF EACH INPUT
TYPICAL
OF ALL OUTPUTS
CLAMP
VCC
Output
Input
GND
Copyright 1995, Texas Instruments Incorporated
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3−1
SLRS020A − DECEMBER 1978 − REVISED NOVEMBER 1995
logic symbols†
logic diagrams (positive logic)
SN75446
1A
S
2A
2
1
SN75446
3
&
CLAMP
7
6
5
1A
1Y
S
2Y
CLAMP
2A
2
1
3
6
7
5
4
1Y
2Y
CLAMP
GND
Positive Logic: Y = AS or A+S
SN75447
1A
S
2A
2
1
SN75447
3
&
1A
1Y
CLAMP
6
7
5
S
2Y
CLAMP
2A
2
1
3
6
7
1Y
2Y
5
CLAMP
4
GND
Positive Logic: Y = AS or A+S
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
Output current, IO (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
Output clamp-diode current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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. Voltage values are with respect to network GND.
2. Both halves of this dual circuit may conduct rated current simultaneously; however, power dissipation averaged over a short time
interval must fall within the continuous dissipation ratings.
DISSIPATION RATING TABLE
TA ≤ 25°C
25 C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
70°C
TA = 70
C
POWER RATING
D
725 mW
5.8 mW/°C
464 mW
P
1000 mW
8.0 mW/°C
640 mW
PACKAGE
3−2
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SLRS020A − DECEMBER 1978 − REVISED NOVEMBER 1995
recommended operating conditions
Supply voltage, VCC
MIN
NOM
MAX
UNIT
4.75
5
5.25
V
High-level input voltage, VIH
2
V
Low-level input voltage, VIL
Operating free-air temperature range, TA
0
0.8
V
70
°C
electrical characteristics over recommended operating free-air temperature range
PARAMETER
VIK
TEST CONDITIONS
Input clamp voltage
II = − 12 mA
VOL
Low-level output voltage
VCC = 4.75 V,
VIH = 2 V,
VIL = 0.8 V
VO(BR)
VR(K)
Output breakdown voltage
VF(K)
MIN
IOL = 100 mA
IOL = 200 mA
IOL = 300 mA
IOL = 350 mA
TYP†
MAX
UNIT
−0.9
−1.5
V
0.1
0.3
0.22
0.45
0.45
0.65
0.55
0.75
V
IOH = 100 µA
IR = 100 µA
70
100
Output clamp-diode reverse voltage
VCC = 4.75 V,
VCC = 4.75 V,
70
100
Output clamp-diode forward voltage
VCC = 4.75 V,
IF = 350 mA
0.6
1.2
1.6
V
IOH
High-level output current
VCC = 4.75 V,
VIL = 0.8 V,
VIH = 2 V,
VOH = 70 V
1
100
µA
A
IIH
High-level input current
VCC = 5.25 V,
VI = 5.25 V
µA
A input
IIL
Low-level input current
ICCH
Supply current, outputs high
ICCL
Supply current, outputs low
S input
0.01
10
−0.5
−10
−1
−20
A
µA
VI = 0.8 V
VI = 5 V
VI = 0
11
18
VCC = 5.25 V
11
18
VI = 0
VI = 5 V
11
18
VCC = 5.25 V
11
18
TYP
MAX
UNIT
300
750
ns
200
500
ns
50
100
ns
50
100
ns
SN75446
SN75447
V
VCC = 5.25 V,
SN75446
SN75447
V
mA
mA
† All typical values are at VCC = 5 V, TA = 25°C.
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Propagation delay time, low-to-high-level output
tTLH
tTHL
Transition time, low-to-high-level output
VOH
High-level output voltage after switching
Propagation delay time, high-to-low-level output
CL = 15 pF,
See Figure 1
MIN
RL = 100 Ω,
Transition time, high-to-low-level output
VS = 55 V,
See Figure 2
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IO [ 300 mA,
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VS −0.018
V
3−3
SLRS020A − DECEMBER 1978 − REVISED NOVEMBER 1995
PARAMETER MEASUREMENT INFORMATION
Input
VCC
2.4 V
30 V
SN75446
SN75447
RL = 100 Ω
A /S
Pulse
Generator
(see Note A)
Output
Circuit
Under
Test
S/A
CL = 15 pF
(see Note B)
0.4 V
Open
TEST CIRCUIT
≤ 5 ns
≤ 10 ns
3V
2.7 V
SN75446 Input 1.5 V
2.7 V
1.5 V
0.3 V
0.3 V
0V
5 µs
≤ 5 ns
≤ 10 ns
2.7 V
1.5 V
SN75447 Input
0.7 V
0.7 V
tPHL
0V
tPLH
90%
Output
3V
2.7 V
1.5 V
90%
50%
10%
50%
10%
tTHL
VOH
VOL
tTLH
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: PRR = 100 kHz, ZO = 50 Ω.
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms, Switching Characteristics
3−4
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•
SLRS020A − DECEMBER 1978 − REVISED NOVEMBER 1995
PARAMETER MEASUREMENT INFORMATION
VS = 55 V
2.4 V
Input
5V
2 mH
SN75446
SN75447
180 Ω
Pulse
Generator
(see Note A)
A
Circuit
Under
Test
S
Output
CL = 15 pF
(see Note B)
0.4 V
GND
TEST CIRCUIT
≤ 5 ns
SN75446 Input
≤ 10 ns
3V
90%
1.5 V
90%
1.5 V
10 %
10%
0V
40 µs
≤ 5 ns
≤ 10 ns
90%
1.5 V
SN75447 Input
3V
90%
1.5 V
10%
10%
0V
VOH
Output
VOL
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.
Figure 2. Latch-Up Test Circuit and Voltage Waveforms
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3−5
3−6
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