SN75478JG [TI]

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SN75478JG
型号: SN75478JG
厂家: TEXAS INSTRUMENTS    TEXAS INSTRUMENTS
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SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
D OR P PACKAGE  
(TOP VIEW)  
Characterized for Use to 300 mA  
No Output Latch-Up at 55 V (After  
Conducting 300 mA)  
S
1A  
V
CC  
2A  
1
2
3
4
8
7
6
5
High-Voltage Outputs (100 V Typ)  
1Y  
2Y  
Output Clamp Diodes for Transient  
Suppression (300 mA, 70 V)  
GND  
CLAMP  
TTL- or MOS-Compatible Diode-Clamped  
Inputs  
Function Tables  
pnp Transistor Inputs Reduce Input Current  
Standard Supply Voltage  
SN75476  
(each AND driver)  
Suitable for Hammer-Driver Applications  
Plastic DIP (P) With Copper-Lead Frame  
Provides Cooler Operation and Improved  
Reliability  
INPUTS  
OUTPUT  
Y
A
S
H
L
X
H
X
L
H
L
L
description  
SN75477  
(each NAND driver)  
The SN75476 through SN75478 are dual  
peripheraldriversdesignedforuseinsystemsthat  
require high current, high voltage, and fast  
switching times. The SN75476, SN75477, and  
SN75478 provide AND, NAND, and OR drivers  
respectively. These devices have diode-clamped  
inputs as well as high-current, high-voltage clamp  
diodes on the outputs for inductive transient  
protection.  
INPUTS  
OUTPUT  
Y
A
S
H
L
X
H
X
L
L
H
H
SN75478  
(each OR driver)  
INPUTS  
OUTPUT  
Y
The SN75476, SN75477, and SN75478 drivers  
are characterized for operation from 0°C to 70°C.  
A
S
H
X
L
X
H
L
H
H
L
schematics of inputs and outputs  
H = high level, L = low level  
X = irrelevant  
EQUIVALENT  
OF EACH INPUT  
TYPICAL  
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.  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
logic symbols  
logic diagrams (positive logic)  
SN75476  
3
6
SN75476  
2
1Y  
2Y  
2
1
7
3
1A  
&
1A  
S
1Y  
1
CLAMP  
S
6
5
2Y  
7
2A  
CLAMP  
2A  
5
4
CLAMP  
GND  
Positive Logic: Y = AS or A+S  
SN75477  
3
6
SN75477  
&
2
1Y  
2Y  
2
1
7
3
1A  
1A  
S
1Y  
1
CLAMP  
S
6
5
2Y  
7
2A  
CLAMP  
2A  
5
4
CLAMP  
GND  
Positive Logic: Y = AS or A+S  
SN75478  
3
6
SN75478  
2
1Y  
2Y  
2
1
7
3
1A  
1  
1A  
S
1Y  
1
CLAMP  
S
6
5
2Y  
7
2A  
CLAMP  
2A  
5
4
CLAMP  
GND  
Positive Logic: Y = A+S or A S  
These symbols are in accordance with ANSI/IEEE Std 91-1984  
and IEC publication 617-12.  
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
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
Continuous output current (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA  
Peak output current: t 10 ms, duty cycle 50% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500 mA  
w
t
30 ns, duty cycle 0.002% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A  
w
OK  
Output clamp current, I  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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  
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 power 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  
recommended operating conditions  
MIN NOM  
4.5  
MAX  
UNIT  
V
Supply voltage, V  
CC  
5
5.5  
High-level input voltage, V  
IH  
2
V
Low-level input voltage, V  
0.8  
70  
V
IL  
Operating free-air temperature, T  
0
°C  
A
3
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
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  
0.95  
0.16  
0.22  
0.33  
100  
V
I
I
I
I
I
I
I
= 100 mA  
= 175 mA  
= 300 mA  
= 100 µA  
OL  
OL  
OL  
OH  
V
V
V
= 4.5 V,  
= 2 V,  
= 0.8 V  
CC  
IH  
IL  
V
OL  
Low-level output voltage  
0.5  
V
0.6  
V
V
V
Output breakdown voltage  
Output clamp reverse voltage  
Output clamp forward voltage  
V
V
V
= 4.5 V,  
= 4.5 V,  
= 4.5 V,  
= 4.5 V,  
70  
70  
V
V
V
O(BR)  
CC  
CC  
CC  
CC  
= 100 µA  
100  
R(K)  
R
F
= 300 mA  
0.8  
1.15  
1.6  
100  
10  
F(K)  
V
V
V
V
= 2 V,  
IH  
I
I
I
High-level output current  
High-level input current  
Low-level input current  
1
µA  
µA  
µA  
OH  
= 0.8 V,  
= 70 V  
IL  
OH  
V
= 5.5 V,  
V = 5.5 V  
I
0.01  
IH  
IL  
CC  
A input  
80 110  
V
= 5.5 V,  
V = 0.8 V  
I
CC  
S input  
160 220  
SN75476  
SN75477  
SN75478  
SN75476  
SN75477  
SN75478  
V = 5 V  
10  
10  
10  
54  
54  
54  
17  
17  
17  
75  
75  
75  
I
I
Supply current, outputs high  
Supply current, outputs low  
V
V
= 5.5 V  
= 5.5 V  
V = 0  
I
mA  
mA  
CCH  
CC  
V = 5 V  
I
V = 0  
I
I
V = 5 V  
I
CCL  
CC  
V = 0  
I
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  
200  
200  
50  
MAX  
350  
350  
125  
125  
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 ,  
L
L
See Figure 1  
ns  
Transition time, high-to-low-level output  
90  
ns  
V
= 55 V,  
I
O
300 mA,  
S
V
OH  
High-level output voltage after switching  
V
S
18  
mV  
See Figure 2  
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
PARAMETER MEASUREMENT INFORMATION  
V
CC  
30 V  
Input  
2.4 V  
SN75476  
SN75477  
R
= 100 Ω  
L
A/S  
Output  
Circuit  
Under  
Test  
Pulse  
S/A  
Generator  
(see Note A)  
C
= 15 pF  
L
(see Note B)  
SN75478  
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  
SN75448  
Input  
Input  
0.7 V  
0.7 V  
2.7 V  
0 V  
3 V  
5 µs  
5 ns  
10 ns  
2.7 V  
SN75447  
1.5 V  
1.5 V  
0.7 V  
0.7 V  
0 V  
t
t
PLH  
PHL  
V
OH  
OL  
90%  
90%  
Output  
50%  
10%  
50%  
10%  
V
t
t
TLH  
THL  
VOLTAGE WAVEFORMS  
NOTES: A. The pulse generator has the following characteristics: PRR = 100 kHz, Z = 50 .  
O
B.  
C includes probe and jig capacitance.  
L
Figure 1. Test Circuit and Voltage Waveforms, Switching Characteristics  
5
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
SN75476 THRU SN75478  
DUAL PERIPHERAL DRIVERS  
SLRS025A – DECEMBER 1976 – REVISED NOVEMBER 1995  
PARAMETER MEASUREMENT INFORMATION  
V
S
= 55 V  
2.4 V  
5 V  
Input  
2 mH  
SN75476  
SN75477  
180 Ω  
Pulse  
Generator  
(see Note A)  
A
S
Circuit  
Under  
Test  
Output  
C
= 15 pF  
L
(see Note B)  
GND  
SN75478  
0.4 V  
TEST CIRCUIT  
5 ns  
10 ns  
3 V  
90%  
1.5 V  
90%  
1.5 V  
SN75476  
SN75478  
Input  
Input  
10%  
10%  
0 V  
3 V  
40 µs  
5 ns  
90%  
1.5 V  
10 ns  
90%  
SN75477  
1.5 V  
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 .  
O
B.  
C includes probe and jig capacitance.  
L
Figure 2. Latch-Up Test Circuit and Voltage Waveforms  
6
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443  
IMPORTANT NOTICE  
Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue  
any product or service without notice, and advise customers to obtain the latest version of relevant information  
to verify, before placing orders, that information being relied on is current and complete. All products are sold  
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those  
pertaining to warranty, patent infringement, and limitation of liability.  
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in  
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.  
CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF  
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL  
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR  
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER  
CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO  
BE FULLY AT THE CUSTOMER’S RISK.  
In order to minimize risks associated with the customer’s applications, adequate design and operating  
safeguards must be provided by the customer to minimize inherent or procedural hazards.  
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent  
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other  
intellectual property right of TI covering or relating to any combination, machine, or process in which such  
semiconductor products or services might be or are used. TI’s publication of information regarding any third  
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.  
Copyright 1998, Texas Instruments Incorporated  

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