DS9638 Datasheet, PDF (2/6 Pages) National Semiconductor (TI) – RS-422 Dual High Speed Differential Line Driver

Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Ceramic DIP
Molded DIP and SO-8
Lead Temperature
−65˚C to +175˚C
−65˚C to +150˚C
Ceramic DIP (Soldering, 60 sec.)
300˚C
Molded DIP (Soldering, 10 sec.)
265˚C
Maximum Power Dissipation (Note 1) at 25˚C
Cavity Package
1300 mW
Molded Package
930 mW
SO Package
810 mW
V_CC Lead Potential to Ground
Input Voltage
−5V to 7V
−0.5V to +7V
Recommended Operating Conditions
DS9638M
DS9638C
Min Typ Max Min Typ Max Units
Supply Voltage (V_CC)
4.5 5.0 5.5 4.75 5.0 5.25
V
Output Current HIGH (I_OH )
−50
−50
mA
Output Current LOW (I_OL )
50
40
50
mA
Operating Temperature (T _A) −55 25 125
0
25
70
˚C
Note 1: Derate cavity package 8.7 mW/˚C above 25˚C; derate molded DIP package 7.5 mW/˚C above 25˚C; derate SO package 6.5 mW˚C above 25˚C.
Electrical Characteristics (Notes 3, 4)
Over recommended operating temperature and supply voltage ranges, unless otherwise specified
Symbol
V_IH
V_IL
Parameter
Input Voltage HIGH
Input Voltage LOW
V_IC
Input Clamp Voltage
V_OH
Output Voltage HIGH
V_OL
Output Voltage LOW
I_I
I_IH
I_IL
I_OS
V_T, V _T
V_T–V _T
V_OS, V _OS
V_OS–V _OS
I_X
Input Current at Maximum
Input Voltage
Input Current HIGH
Input Current LOW
Output Short Circuit Current
Terminated Output Voltage
Output Balance
Output Offset Voltage
Output Offset Balance
Output Leakage Current
I_CC
Supply Current
(Both Drivers)
Conditions
0˚C to +70˚C
−55˚C to +125˚C
V _CC = Min, I_I = −18 mA
V_CC = Min,
V_IH = V_{IH Min},
V_IL = V_{IL Max}
I_OH = −10 mA
I_OH = −40 mA
V _CC = Min, V_IH = V_{IH Min},
V _IL = V_{IL Max}, I_OL = 40 mA
V _CC = Max, V_{I Max} = 5.5V
Min Typ
2.0
−1.0
2.5
3.5
2.0
Max
0.8
0.5
−1.2
0.5
50
Units
V
V
V
V
V
µA
V _CC = Max, V_IH = 2.7V
V _CC = Max, V_IL = 0.5V
V _CC = Max, V_O = 0V (Note 4)
See Figure 1
T _A = 25˚C
−0.25V < V_X < 5.5V
V_CC = 5.5V,
All input at 0V,
No Load
25
µA
−200
µA
−50
−150
mA
2.0
V
0.4
V
3.0
V
0.4
V
100
µA
45
65
mA
Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics provide conditions for actual device operation.
Note 3: Unless otherwise specified min/max limits apply across the −55˚C to +125˚C temperature range for the DS9638M and across the 0˚C to +70˚C range for
the DS9638C. All typicals are given for V_CC = 5V and T_A = 25˚C.
Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are referenced to ground unless otherwise specified.
Note 5: Only one output at a time should be shorted.
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