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SN75LBC784_11 Datasheet, PDF (2/10 Pages) Texas Instruments – QUADRUPLE RS-423-B DRIVER/RECEIVER
SN75LBC784
SLLS187B − NOVEMBER 1994 − REVISED JUNE 2007
logic diagram (positive logic)
1
3A
12 3Y
4
4A
10 4Y
23
1A
20 1Y
26
2A
18 2Y
2
3Z
5
4Z
24
1Z
27
2Z
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+
11 3B
_
13 3C
+
9 4B
_
14 4C
+
19 1B
_
15 1C
+
17 2B
_
16 2C
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Positive supply voltage, VDD(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.
(1) All voltages are with respect to network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ +25°C
DERATING FACTOR†
POWER RATING 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
Supply voltage, VDD
Supply voltage, VSS
Bias voltage, Vbias
High-level input voltage, VIH
Low-level input voltage, VIL
High-level output current, IOH
Low-level output current, IOL
Rws slew rate control resistor
Operating free-air temperature, TA
Driver
Driver
Receiver
Receiver
MIN
10.8
− 10.8
2
2
20
0
NOM MAX
12 13.2
−12 −13.2
5 5.5
0.8
−4
4
82 820
+70
UNIT
V
V
V
V
V
mA
mA
kΩ
°C
2