SN75447P [TI]
DUAL PERIPHERAL DRIVERS; DUAL外设驱动程序
| 型号： | SN75447P |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | DUAL PERIPHERAL DRIVERS |
| 文件： | 总7页 (文件大小：99K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN75446, SN75447
DUAL PERIPHERAL DRIVERS
SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995
D OR P PACKAGE
(TOP VIEW)
• Very Low Power Requirements
• Very Low Input Current
• Characterized for Use to 350 mA
S
1A
V
CC
2A
1
2
3
4
8
7
6
5
• No Output Latch-Up at 50 V (After
1Y
2Y
Conducting 300 mA)
GND
CLAMP
• High-Voltage Outputs (70 V Min)
• Output Clamp Diodes for Transient
Suppression (350 mA, 70 V)
Function Tables
• TTL- or MOS-Compatible Diode-Clamped
SN75446
(each AND driver)
Inputs
• Standard Supply Voltage
• Suitable for Hammer-Driver Applications
INPUTS
OUTPUT
Y
A
S
H
L
X
H
X
L
H
L
L
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.
SN75447
(each NAND driver)
INPUTS
OUTPUT
Y
A
S
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
TYPICAL
OF EACH INPUT
OF ALL OUTPUTS
CLAMP
V
CC
Output
Input
GND
Copyright 1995, 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.
3–1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75446, SN75447
DUAL PERIPHERAL DRIVERS
SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995
†
logic symbols
logic diagrams (positive logic)
SN75446
SN75446
3
6
2
1Y
2Y
2
1
7
3
&
1A
1A
S
1Y
CLAMP
1
6
5
S
2Y
7
2A
CLAMP
2A
5
4
CLAMP
GND
Positive Logic: Y = AS or A+S
SN75447
SN75447
&
3
6
1Y
2Y
2
2
1
7
3
1A
S
1A
1Y
CLAMP
1
6
5
S
2Y
2A
CLAMP
7
5
4
2A
CLAMP
GND
Positive Logic: Y = AS or A+S
†
ThissymbolisinaccordancewithANSI/IEEEStd91-1984
and IEC publication 617-12.
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, V
(see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
CC
Input voltage, V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
I
Output current, I (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
O
Output clamp-diode current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
A
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
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
T
≤ 25°C
DERATING FACTOR
T = 70°C
A
POWER RATING
A
PACKAGE
POWER RATING
ABOVE T = 25°C
A
D
P
725 mW
5.8 mW/°C
8.0 mW/°C
464 mW
1000 mW
640 mW
3–2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75446, SN75447
DUAL PERIPHERAL DRIVERS
SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995
recommended operating conditions
MIN NOM
MAX
UNIT
V
Supply voltage, V
CC
4.75
2
5
5.25
High-level input voltage, V
IH
V
Low-level input voltage, V
0.8
70
V
IL
Operating free-air temperature range, T
0
°C
A
electrical characteristics over recommended operating free-air temperature range
†
PARAMETER
Input clamp voltage
TEST CONDITIONS
MIN TYP
MAX
–1.5
0.3
UNIT
V
IK
I = –12 mA
–0.9
0.1
V
I
I
I
I
I
I
I
I
= 100 mA
= 200 mA
= 300 mA
= 350 mA
= 100 µA
OL
OL
OL
OL
OH
V
V
V
= 4.75 V,
= 2 V,
= 0.8 V
CC
IH
IL
0.22
0.45
0.55
100
100
1.2
0.45
0.65
0.75
V
OL
Low-level output voltage
V
V
V
V
Output breakdown voltage
V
V
V
= 4.75 V,
= 4.75 V,
= 4.75 V,
= 4.75 V,
70
70
V
V
V
O(BR)
CC
CC
CC
CC
Output clamp-diode reverse voltage
Output clamp-diode forward voltage
= 100 µA
R(K)
R
F
= 350 mA
0.6
1.6
F(K)
V
V
V
V
= 2 V,
IH
I
I
I
High-level output current
High-level input current
1
100
µA
µA
µA
OH
= 0.8 V,
= 70 V
IL
OH
V
= 5.25 V,
V = 5.25 V
I
0.01
–0.5
–1
10
–10
–20
18
IH
IL
CC
A input
Low-level input current
V
= 5.25 V,
V = 0.8 V
I
CC
S input
SN75446
SN75447
SN75446
SN75447
V = 5 V
11
I
I
Supply current, outputs high
Supply current, outputs low
V
= 5.25 V
= 5.25 V
mA
mA
CCH
CCL
CC
V = 0
I
11
18
V = 0
I
11
18
I
V
CC
V = 5 V
I
11
18
†
All typical values are at V
= 5 V, T = 25°C.
A
CC
switching characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
MIN
TYP
300
200
50
MAX
750
500
100
100
UNIT
ns
t
t
t
t
Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output
Transition time, low-to-high-level output
PLH
PHL
TLH
THL
ns
C
= 15 pF,
R = 100 Ω,
L
L
See Figure 1
ns
Transition time, high-to-low-level output
50
ns
V
= 55 V,
I
O
300 mA,
S
V
OH
High-level output voltage after switching
V
S
–0.018
V
See Figure 2
3–3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75446, SN75447
DUAL PERIPHERAL DRIVERS
SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995
PARAMETER MEASUREMENT INFORMATION
V
CC
Input
2.4 V
30 V
SN75446
SN75447
R
= 100 Ω
L
A/S
Output
Circuit
Under
Test
Pulse
Generator
(see Note A)
S/A
C
= 15 pF
L
(see Note B)
0.4 V
Open
TEST CIRCUIT
≤ 5 ns
≤ 10 ns
3 V
2.7 V
1.5 V
2.7 V
1.5 V
SN75446 Input
SN75447 Input
0.3 V
0.3 V
0 V
3 V
5 µs
≤ 5 ns
2.7 V
1.5 V
≤ 10 ns
2.7 V
1.5 V
0.7 V
0.7 V
0 V
t
t
PLH
PHL
V
OH
OL
90%
90%
50%
10%
50%
10%
Output
V
t
t
TLH
THL
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: PRR = 100 kHz, Z = 50 Ω.
O
B.
C includes probe and jig capacitance.
L
Figure 1. Test Circuit and Voltage Waveforms, Switching Characteristics
3–4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN75446, SN75447
DUAL PERIPHERAL DRIVERS
SLRS020A – DECEMBER 1978 – REVISED NOVEMBER 1995
PARAMETER MEASUREMENT INFORMATION
V
S
= 55 V
2.4 V
5 V
Input
2 mH
SN75446
SN75447
180 Ω
Pulse
Generator
(see Note A)
A
S
Circuit
Under
Test
Output
C
= 15 pF
L
(see Note B)
0.4 V
GND
TEST CIRCUIT
≤ 5 ns
≤ 10 ns
3 V
90%
1.5 V
90%
1.5 V
SN75446 Input
10%
10 %
0 V
3 V
40 µs
≤ 5 ns
90%
1.5 V
≤ 10 ns
90%
1.5 V
SN75447 Input
10%
10%
0 V
V
V
OH
Output
OL
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: PRR = 12.5 kHz, Z = 50 Ω.
O
B.
C includes probe and jig capacitance.
L
Figure 2. Latch-Up Test Circuit and Voltage Waveforms
3–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3–6
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pertaining to warranty, patent infringement, and limitation of liability.
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
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Copyright 1998, Texas Instruments Incorporated
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