UM3487E Datasheet, PDF (3/14 Pages) Union Semiconductor, Inc. – ±15kV ESD-Protected, Fail-Safe, Hot-Swappable Auto Polarity Reversal RS-485 Transceivers

UM3487E
DC Electrical Characteristics (Continued)
(V_CC = +3.3V ±5%, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at V_CC= +3.3V
and T_A = +25°C.) (Note 1)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
RECEIVER
Receiver Differential
Threshold Voltage
V_TH
-7V≤V_CM≤12V
-200
-50 mV
Receiver Input Hysteresis
Receiver Input Resistance
ΔV_TH
R_IN
V_CM=0V
-7V≤V_CM≤12V
50
96
Input Current (L1 and L2)
DE = GND, ^{VIN = 12V}
I_IN2
V_CC = GND
or 5V
V_IN = -7V
Receiver Output High Voltage V_OH
I_O = -1.5mA, V_ID = 200mV V_CC -0.2
mV
KΩ
1.0
mA
-0.8
V
Receiver Output Low Voltage V_OL
Three-State Output Current at
Receiver
I_OZR
I_O = 2.5mA, V_ID = 200mV
0V ≤ V_O ≤ V_CC
0.3 V
±1 µA
Receiver Output Short Circuit
Current
I_OSR
0V≤V_RO ≤V_CC
±10
±40 mA
ESD Protection
Human Body Model
±15
ESD Protection for A, B
IEC61000-4-2 Air Discharge
±15
kV
IEC61000-4-2 Contact
±8
Note 1: All currents into the device are positive; all currents out of the device are negative. All
voltages are referred to device ground unless otherwise noted.
Note 2: ΔV_OD and ΔV_OC are the changes in V_OD and V_OC, respectively, when the DI input changes
state.
Note 3: Maximum current level applies to peak current just prior to fold back current limiting;
minimum current level applies during current limiting.
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http://www.union-ic.com Rev.02 Jan.2014
3/14