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SN75LBC784 Datasheet(PDF) 2 Page - Texas Instruments

Part No. SN75LBC784
Description  QUADRUPLE RS-423-B DRIVER/RECEIVER
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN75LBC784 Datasheet(HTML) 2 Page - Texas Instruments

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SN75LBC784
QUADRUPLE RS-423-B DRIVER/RECEIVER
SLLS187A – NOVEMBER 1994 – REVISED AUGUST 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagram (positive logic)
_
+
12
1
2
11
13
3Y
3B
3C
3A
3Z
10
4
4Y
4A
20
23
1Y
1A
18
26
2Y
2A
_
+
5
9
14
4B
4C
4Z
_
+
27
19
15
1B
1C
1Z
_
+
24
17
16
2B
2C
2Z
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Positive supply voltage, VDD (see Note 1)
14 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Negative supply voltage, VSS
– 14 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bias voltage, Vbias
5.75 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver input voltage range
– 30 V to 30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver input voltage range
– 0.5 V to 5.75 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver output voltage range (supplies at 0 V)
– 30 V to 30 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver output voltage range (supplies at
±12 V)
– 25 V to 25 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous power dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
–65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Case temperature 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.
NOTE 1: All voltages are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR†
ABOVE TA = 25°C
TA = 70°C
POWER RATING
DW
1348 mW
10.8 mW/
°C
862 mW
† Derating factors are the inverse of the junction-to-ambient thermal resistance when
board-mounted with no air flow.
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VDD
10.8
12
13.2
V
Supply voltage, VSS
– 10.8
–12
– 13.2
V
Bias voltage, Vbias
2
5
5.5
V
High-level input voltage, VIH
Driver
2
V
Low-level input voltage, VIL
Driver
0.8
V
High-level output current, IOH
Receiver
–4
mA
Low-level output current, IOL
Receiver
4
mA
Rws slew rate control resistor
20
82
820
k
Operating free-air temperature, TA
0
70
°C


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