XR3170E Datasheet, PDF (5/24 Pages) Exar Corporation – 3.3V High Speed RS-485/RS-422 TRANSCEIVERS WITH 1/8 UNIT LOAD

REV. 1.0.0
XR3170E-3178E
3.3V HIGH SPEED RS-485/RS-422 TRANSCEIVERS WITH 1/8^th UNIT LOAD
UNLESS OTHERWISE NOTED: VCC = +3.0V TO +3.6V WITH T_A FROM -40^OC TO +85^OC. TYPICAL VALUES ARE AT
VCC = +3.3V AND 25^OC.
SYMBOL
∆V_OC
I_OSD
V_IH
V_IL
V_HYS
I_IN
PARAMETERS
Change in Magnitude of Common
Mode Output Voltage
Driver Short Circuit Current Limit
MIN.
-0.2
-250
2.0
Logic Input Thresholds (DI, DE, RE)
Driver Input Hysteresis
Logic Input Current (DI, DE and RE) -1
I_OL
Output Leakage Current (Full-Duplex
versions, Y and Z pins) Note 2
-100
RECEIVER DC CHARACTERISTICS
R_IN
Receiver Input Resistance
96
I_IN
Input Current (A, B pins)
-100
V_IH,V_IL
V_OH
Receiver Differential Thresholds
(V_A - V_B)
Receiver Input Hysteresis
Receiver Output Voltage High
V_OL
Receiver Output Voltage Low
I_OZ
High-Z Receiver Output Current
-200
Vcc -
0.6
I_OSC
Receiver Output Short Circuit Cur-
rent
TYP.
100
160
70
-55
-120
25
+/-
0.03
MAX. UNITS
CONDITIONS
0.2
V Figure 3, See Note 1
250 mA _{-7V ≤ VOUT ≤ 12V, Figure 5}
V Logic Input High
0.8
V Logic Input Low
mV T_A = 25°C
1
µA _{0V ≤ IN ≤ +Vcc, after first tran-}
sition, Note 2
125 µA Vout = 12V, DE = 0V, RE = 0V,
Vcc = 0V or 3.3V.
µA Vout = -7V, DE = 0V, RE = 0V,
Vcc = 0V or 3.3V.
KΩ _{-7V ≤ VCM ≤ 12V}
125 µA DE = 0V, Vcc = 0V or 3.3V, V_IN
= 12V
µA DE = 0V, Vcc = 0V or 3.3V, V_IN
= -7V
-50 mV _{-7V ≤ VCM ≤ 12V}
mV V_CM = 0V
V I_OUT = -8mA, V_ID = -50mV
0.4
+/-1.0
+/-95
V I_OUT = 8mA, V_ID = -200mV
µA Vcc = 3.3V,
0.40V ≤ Vout ≤ 2.4V
mA _{0V ≤ VRO ≤ Vcc}
SUPPLY AND PROTECTION
I_CC1
Supply Current - Driver Enabled
650 950
I_CC2
Supply Current - Shutdown Mode
1
T_SD
Thermal Shutdown Temperature
165
Thermal Shutdown Hysteresis
15
XR3170E, XR3171E, XR3172E
DRIVER AC CHARACTERISTICS
freq
Max. Data Signaling Rate
250
µA No Load, DE = Vcc, DI = 0V or
Vcc
µA DE = 0V, RE = Vcc, DI = 0V or
Vcc
°C Junction temperature, Note 4
°C Note 4
kbps 1/t_UI, Duty Cycle 40 to 60%
5