MAX14945 Datasheet, PDF (4/21 Pages) Maxim Integrated Products – 2.75kVRMS Isolated 500kbps Half-Duplex RS-485

MAX14945
2.75kV_RMS Isolated 500kbps Half-Duplex RS-485/
RS-422 Transceiver with ±30kV ESD Protection
DC Electrical Characteristics (continued)
(V_DDA – V_GNDA = 1.71V to 5.5V, V_DDB – V_GNDB = 4.5V to 5.5V, T_A = T_MIN to T_MAX, unless otherwise noted. Typical values are at
V_DDA – V_GNDA = 3.3V, V_DDB – V_GNDB = 5V, V_GNDA = V_GNDB, and T_A = +25°C.) (Notes 2, 3)
PARAMETER
Change in Magnitude of
Common-Mode Voltage
Driver Short-Circuit Output
Current
Driver Short-Circuit Foldback
Output Current
RECEIVER
Input Current (A and B)
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Input Resistance
PROTECTION
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
ESD Protection
(A and B Pins to GNDB)
ESD Protection (All Other Pins)
SYMBOL
ΔV_OC
IOSD
IOSDF
IA, IB
VTH
ΔV_TH
RIN
T_SHDN
T_HYST
CONDITIONS
MIN
RL = 54Ω (Note 5)
GNDB ≤ V_OUT ≤ +12V, output low (Note 6) +40
-7V ≤ V_OUT ≤ V_DDB, output high (Note 6)
(VDDB – 1V) ≤ V_OUT ≤ +12V,
output low (Note 6)
-250
+20
-7V ≤ V_OUT ≤ +1V, output high (Note 6)
DE = low, VDDB
= GNDB or 5.5V
VIN = +12V
VIN = -7V
-7V ≤ V_CM ≤ +12V
VCM = 0V
-7V ≤ V_CM ≤ +12V, DE = low
Temperature Rising
-100
-200
96
Human Body Model
IEC 61000-4-2 Air Gap Discharge
IEC 61000-4-2 Contact Discharge
Human Body Model
TYP
-125
15
+160
15
±30
±15
±10
±4
MAX
0.2
+250
-40
-20
+125
-50
UNITS
V
mA
mA
µA
mV
mV
kΩ
°C
°C
kV
kV
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