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XR33181 Datasheet Preview

XR33181 Datasheet

TSOT23 RS-485/RS-422 Receivers

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XR33180/81/83/84
3V to 5.5V, 52Mbps, TSOT23 RS-485/RS-422
Receivers with ±15kV ESD Protection
Description
The XR33180, XR33181, XR33183 and XR33184 are high performance
RS-485/RS-422 receivers designed to meet the increasing system
requirements found in today’s high performance serial communication
applications.
The receiver includes enhanced failsafe circuitry, guaranteeing
a logic-high receiver output when the receiver inputs are open,
shorted, or undriven. The XR33180/81/83/84 (XR3318x) receiver
input impedance is at least 48kΩ (1/4 unit load), allowing more than
128 devices on the bus. The bus pins are ESD protected and pass
IEC61000 level 4 (±15kV).
This is a wide supply (3.0V to 5.5V) device that operates at a maximum
data rate of 52Mbps and comes in very small 5-pin and 6-pin TSOT23
packages, making this standalone receiver ideal for high speed
point-to-point RS-485 applications where space is a concern.
The XR3318x offers several pinout options to maximize performance
in different applications while maintaining a minimum pin count. The
XR33180 is available in a 5-pin TSOT23 package with the receiver
always enabled. The XR33181 is available in a 6-pin TSOT23 package
and offers a active high receiver enable pin while the XR33183 has the
same pinout but with active low enable pin. The XR33184 is available
in a 6-pin TSOT23 package with a I/O logic supply pin to ease the
interface to MCU’s or FPGA’s that run off of different supply voltages.
The VL supply pin allows the XR33184 to interface to other devices
running off of supplies from ranging from 1.65V to VCC.
All XR3318x options operate up to a max data rate of 52Mbps, and
have excellent propagation delay and skew characteristics making
them a good choice for clock fanout or clock distribution systems.
Typical Application
3.3V to 5.0V
FEATURES
■■ Max 52Mbps data rate
■■ Wide 3.0V to 5.5V supply operation
■■ Robust Electrostatic Discharge (ESD)
protection for RS-485 bus pins
±15kV human body model
±15kV IEC61000-4-2 air discharge
±8kV IEC61000-4-2 contact
discharge
■■ Enhanced receiver failsafe protection for
open, shorted, or terminated but idle data
lines
■■ -40°C to 125°C ambient operating
temperature range
■■ Lead-free (RoHS 6) TSOT23-5 and
TSOT23-6 packaging
■■ Absolute minimum pin count option,
XR33180 (5-pin TSOT23)
■■ Tri-state RO options, XR33181 and
XR33183
■■ Adjustable I/O supply option to help
interfacing to lower voltage logic, XR33184
APPLICATIONS
■■ Clock distribution
■■ Robotic control
■■ Space constrained systems
■■ Security camera networks
■■ Industrial and process control equipment
3.3V
VCC
RO R
XR3318x
GND
A 120Ω
B
Figure 1. Typical Application
REV1A
VCC
D
XR3319x
GND
1/12




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XR33181 Datasheet Preview

XR33181 Datasheet

TSOT23 RS-485/RS-422 Receivers

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XR33180/81/83/84
Absolute Maximum Ratings
Stresses beyond those listed under Absolute Maximum
Ratings may cause permanent damage to the device.
Exposure to any Maximum Rating condition for extended
periods may affect device reliability and lifetime.
Supply voltage (VCC)....................................... -0.3V to 7.0V
Junction temperature.................................................. 150°C
Input Voltages
EN and EN....................................................... -0.3V to 7.0V
Output Voltage
RO (XR33180/81/83).......................... -0.3V to (VCC + 0.3V)
RO (XR33184)....................................... -0.3V to (VL + 0.3V)
Receiver Input Voltages
A, B............................................................................... ±18V
Transient voltage pulse, through 100Ω (1)................... ±100V
NOTE:
1. Refer to Figure 3.
Operating Conditions
Operating temperature range....................... -40°C to 125°C
VCC supply range..............................................3.0V to 5.5V
Thermal Information
5-pin TSOT23 θJA............................................... 185.5°C/W
5-pin TSOT23 θJC................................................. 61.6°C/W
6-pin TSOT23 θJA............................................... 167.3°C/W
6-pin TSOT23 θJC................................................. 61.6°C/W
Electrical Characteristics
Specifications are at TA = 25°C, VCC = 3.0V to 5.5V unless otherwise noted. Typical values represent the most likely
parametric norm at TA = 25°C, and are provided for reference purposes only.
Symbol Parameter
Conditions
Min Typ Max Units
Supply
VCC Supply voltage range
VL I/O supply voltage range
ICC Supply current
IL I/O supply
Receiver DC Characteristics
VTH
∆VOH
Receiver differential threshold voltage,
VA - VB
Receiver input hysteresis
RIN Receiver input resistance
IA,B Input current, A and B
VL ≤ VCC
No Load, XR33180/81/83/84
No Load, XR33184
-7V ≤ VCM ≤ 12V
VCM = 0V
-7V ≤ VCM ≤ 12V
VOUT = 12V, VCC = 0V or 5.5V
VOUT = -7V, VCC = 0V or 5.5V
3.0 5.5 V
1.65
VCC
V
2.5 5 mA
10 μA
-200
48
-200
-125
25
-50
250
mV
mV
μA
μA
REV1A
2/12


Part Number XR33181
Description TSOT23 RS-485/RS-422 Receivers
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Total Page 12 Pages
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