Octal Line Driver
FEATURES
∙Eight Single Ended Line Drivers in One Package
∙Meets EIA Standards EIA232E/V.28, EIA423A and CCITT V.10/X.26
∙Single External Resistor Controls Slew Rate
∙Wide Supply Voltage Range
∙Tri-State Outputs
∙Output Short-Circuit Protection
UC5170C
DESCRIPTION
The UC5170C is a single-ended octal line driver designed to meet both standard modem control applications (EIA232E/V.28), and long line drive applications (EIA423A/V.10/X.26). The slew rate for all eight drivers is controlled by a single external resistor. The slew rate and output levels in Low Mode are independent of the power variations.
Mode selection is easily accomplished by taking the select pins (MS+ and MS-) to ground for low output mode (EIA232E/V.28 and EIA423A/V.10) or to their respective supplies for high mode (EIA232E/V.28). High mode should only by used to drive adapters that take power from the control lines, or applications using high threshold receivers.
ABSOLUTE MAXIMUM RATINGS (Note 1)
V+ (Pin 20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V V- (Pin 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −15V PLCC Power Dissipation, TA = 25°C (Note 2) . . . . . . 1000 mW DIP Power Dissipation, TA = 25°C (Note 2) . . . . . . . . 1250 mW Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1.5V to +7V Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . −12V to +12V Slew Rate Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . 2k to 10kΩ Storage Temperature . . . . . . . . . . . . . . . . . . . −65°C to +150°C
Note 1: All voltages are with respect to ground, pin 18.
Note 2: Consult Packaging Section of Databook for thermal limitations and considerations of packages.
FUNCTIONAL TABLE
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INPUTS |
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OUTPUTS |
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HIGH |
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LOW |
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EN |
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DATA |
EIA-232E(2) |
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EIA423A+EIA232E |
0 |
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0 |
(V+)-3V |
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5V to 6V |
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0 |
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1 |
(V-)-3V |
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−5V to -6V |
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1 |
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X |
High Z |
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High Z |
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Note 2: Minimum output swings.
CONNECTION DIAGRAMS
N PACKAGE (TOP VIEW)
7/95
Q PACKAGE (TOP VIEW) |
UC5170C
DC ELECTRICAL CHARACTERISTICS: Unless otherwise stated these specifications hold for | V+ | = | V - | = 10V, 0 < TA < +70°C, MS+ = MS− = 0V, RSRA = +10k, TA =TJ.
PARAMETERS |
SYMBOL |
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TEST CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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POWER SUPPLY REQUIREMENTS |
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V+ Range |
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9 |
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15 |
V |
V- Range |
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-9 |
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-15 |
V |
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V+ Supply Current |
I+ |
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RL = Infinite En = 0V |
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25 |
42 |
mA |
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V- Supply Current |
I- |
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RL = Infinite En = 0V |
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-23 |
-42 |
mA |
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INPUTS |
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High Level Input Voltage |
VIH |
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2.0 |
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V |
Low Level Input Voltage |
VIL |
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0.8 |
V |
Input Clamp Voltage |
VIK |
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II = -15 mA |
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-1.1 |
-1.8 |
V |
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High Level Input Current |
IIH |
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VIH = 2.4V |
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0.25 |
40 |
μA |
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Low Level Input Current |
IIL |
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VIL = 0.4V |
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-200 |
-8.0 |
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μA |
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OUTPUTS |
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High Level (Low Mode) Output Voltage |
VOH |
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VIN = 0.8V |
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RL = Inf. |
5.0 |
5.3 |
6.0 |
V |
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(EIA423A/V.10, EIA232E/V.28) |
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En = 0.8V |
RL = 3k |
5.0 |
5.3 |
6.0 |
V |
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RL = 450 |
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4.5 |
5.2 |
6.0 |
V |
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Low Level (Low Mode) Output Voltage |
VOL |
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VIN = 2.0V |
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RL = Inf. |
-5.0 |
-5.3 |
-6.0 |
V |
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(EIA423A/V.10,EIA232E/V.28) |
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En = 0.8V |
RL = 3k |
-5.0 |
-5.3 |
-6.0 |
V |
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RL = 450 |
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-4.5 |
-5.2 |
-6.0 |
V |
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Output Balance (EIA423A/V.10) |
VBAL |
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RL = 450 VOH - VOL = VBAL |
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0.2 |
0.4 |
V |
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High Level (High Mode) Output Voltage |
VOH |
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VIN = 0.8V RL = Inf., MS+ = V+, MS- = V- |
7.0 |
7.6 |
10 |
V |
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(EIA232E/V.28) |
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En = 0.8V RL = 3k, MS+ = V+, MS- = V- |
7.0 |
7.6 |
10 |
V |
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Low Level (High Mode) Output Voltage |
VOL |
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VIN = 2.0V RL = Inf., MS+ = V+, MS- =V- |
-7.0 |
-7.7 |
-10 |
V |
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(EIA232E, V.28) |
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En = 0.8V RL = 3k, MS+ = V+, MS- = V- |
-7.0 |
-7.7 |
-10 |
V |
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Off-State Output Current |
IOZ |
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= 2.0V, VO = ±6V, V+ = 15V, V- = -15V |
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μA |
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En |
-100 |
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100 |
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Short-Circuit Current |
IOS |
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VIN = 0V, En = 0V |
25 |
50 |
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mA |
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VIN = 5V, En = 0V |
25 |
40 |
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mA |
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AC ELECTRICAL CHARACTERISTICS: at | V+ | = | V - | |
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= 10V, 0 < TA < +70°C, MS+ = MS− = 0V, TA =TJ. |
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PARAMETERS |
SYMBOL |
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TEST CONDITIONS |
MIN |
TYP |
MAX |
UNITS |
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Output Slew Rate |
tR |
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RSRA = 2k |
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6.65 |
9.5 |
12.3 |
V/μs |
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tF |
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RL = 450, CL = 50pF |
6.65 |
10 |
12.3 |
V/μs |
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Output Slew Rate |
tR |
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RSRA = 10k |
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1.33 |
1.9 |
2.45 |
V/μs |
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tF |
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RL = 450, CL = 50pF |
1.33 |
2.2 |
2.45 |
V/μs |
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Propagation Output to |
tHz |
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RSRA = 10k |
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0.3 |
1.0 |
μs |
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High Impedance |
tLz |
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RL = 450, CL = 50pF |
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0.5 |
1.0 |
μs |
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Propagation High Impedance to |
tzH |
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RSRA = 10k |
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6.0 |
15 |
μs |
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Output |
tzL |
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RL = 450, CL = 50pF |
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7.0 |
15 |
μs |
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