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RS-485/RS-422 Transceiver. MAX22502E Datasheet

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RS-485/RS-422 Transceiver. MAX22502E Datasheet






MAX22502E Transceiver. Datasheet pdf. Equivalent




MAX22502E Transceiver. Datasheet pdf. Equivalent





Part

MAX22502E

Description

100Mbps Full-Duplex RS-485/RS-422 Transceiver



Feature


Click here for production status of spec ific part numbers. MAX22502E EVALUATIO N KIT AVAILABLE 100Mbps Full-Duplex RS- 485/RS-422 Transceiver for Long Cables General Description The MAX22502E full -duplex, ESD-protected, RS-485/ RS-422 transceiver is optimized for high-speed (up to 100Mbps) communication over lon g cables.This transceiver features larg er receiver hyster.
Manufacture

Maxim Integrated

Datasheet
Download MAX22502E Datasheet


Maxim Integrated MAX22502E

MAX22502E; esis for high noise rejection and improv ed signal integrity. Integrated preemph asis circuitry extends the distance, an d increases the data rate, of reliable communication by reducing inter-symbol interference (ISI) caused by long cable s when supplied with 5V. Integrated hot -swap protection and a fail-safe receiv er ensure a logic-high on the receiver output when input .


Maxim Integrated MAX22502E

signals are shorted or open for longer t han 10μs (typ). The MAX22502E is avail able in a 12-pin TDFN-EP (3mm x 3mm) pa ckage and operates over the -40°C to + 125°C ambient temperature range. Appli cations ●● Motion Control ●● En coder Interfaces ●● F .


Maxim Integrated MAX22502E

.

Part

MAX22502E

Description

100Mbps Full-Duplex RS-485/RS-422 Transceiver



Feature


Click here for production status of spec ific part numbers. MAX22502E EVALUATIO N KIT AVAILABLE 100Mbps Full-Duplex RS- 485/RS-422 Transceiver for Long Cables General Description The MAX22502E full -duplex, ESD-protected, RS-485/ RS-422 transceiver is optimized for high-speed (up to 100Mbps) communication over lon g cables.This transceiver features larg er receiver hyster.
Manufacture

Maxim Integrated

Datasheet
Download MAX22502E Datasheet




 MAX22502E
Click here for production status of specific part numbers.
MAX22502E
EVALUATION KIT AVAILABLE
100Mbps Full-Duplex RS-485/RS-422
Transceiver for Long Cables
General Description
The MAX22502E full-duplex, ESD-protected, RS-485/
RS-422 transceiver is optimized for high-speed (up to
100Mbps) communication over long cables.This transceiver
features larger receiver hysteresis for high noise rejection
and improved signal integrity. Integrated preemphasis
circuitry extends the distance, and increases the data rate,
of reliable communication by reducing inter-symbol
interference (ISI) caused by long cables when supplied with
5V. Integrated hot-swap protection and a fail-safe receiver
ensure a logic-high on the receiver output when input signals
are shorted or open for longer than 10μs (typ).
The MAX22502E is available in a 12-pin TDFN-EP (3mm
x 3mm) package and operates over the -40°C to +125°C
ambient temperature range.
Applications
● Motion Control
● Encoder Interfaces
● Field Bus Networks
● Industrial Control Systems
● Backplane Busses
Benefits and Features
● High-Speed Operation Over Long Distances
• Up to 100Mbps Data Rate
• Integrated Preemphasis Extends Cable Length
• High Receiver Sensitivity
• Wide Receiver Bandwidth
• Symmetrical Receiver Thresholds
● Integrated Protection Increases Robustness
• -15V to +15V Common Mode Range
• ±15kV ESD Protection (Human Body Model)
• ±7kV IEC61000-4-2 Air-Gap ESD Protection
• ±6kV IEC61000-4-2 Contact Discharge
ESD Protection
• Driver Outputs are Short-Circuit Protected
● Flexibility for Many Different Applications
• 3V to 5.5V Supply Range
• Low Voltage Logic Supply Down to 1.6V
• Low 5µA (max) Shutdown Current
• Available in 12-pin TDFN (3mm x 3mm) Package
• -40°C to +125°C Operating Temperature Range
Ordering Information appears at end of data sheet.
Simplified Block Diagram
RO
RE
DE
DI
PSET
VL
R
VCC
B
A
SHUTDOWN
D
Y
Z
MAX22502E
GND
19-100135; Rev 1; 4/19




 MAX22502E
MAX22502E
100Mbps Full-Duplex RS-485/RS-422
Transceiver for Long Cables
Absolute Maximum Ratings
VCC.........................................................................-0.3 V to +6 V
RE, DE, DI, VL .....................................................-0.3 V to +6 V
RO.............................................................. -0.3 V to (VL + 0.3) V
PSET....................................................... -0.3 V to (VCC + 0.3) V
A, B, Y, Z.................................................................-15V to +15V
Short-Circuit Duration (RO, Y, Z) to GND
Continuous Power Dissipation (Single Layer Board
(derate 15.9mW/°C above +70°C))............................1269mW
Continuous Power Dissipation (Multilayer Board (derate
24.4mW/°C above +70°C)).........................................1951mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Reflow Temperature.........................................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Package Information
12 TDFN-EP
PACKAGE CODE
TD1233+1C
Outline Number
21-0664
Land Pattern Number
90-0397
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θJA)
Junction to Case (θJC)
Thermal Resistance, Four-Layer Board:
63°C/W
8°C/W
Junction to Ambient (θJA)
Junction to Case (θJC)
41°C/W
8°C/W
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board.
For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated 2




 MAX22502E
MAX22502E
100Mbps Full-Duplex RS-485/RS-422
Transceiver for Long Cables
Electrical Characteristics
(VCC = 3V to 5.5V, VL = 1.6V to VCC, VL ≤ VCC, TA = TMIN to TMAX, unless otherwise noted (Notes 1, 2) )
PARAMETER
SYMBOL
CONDITIONS
POWER
Supply Voltage
Preemphasis disabled
VCC
Preemphasis enabled
Supply Current
ICC DE = high, RE = low, no load
Shutdown Supply Current
Logic Supply Voltage
Logic Supply Current
DRIVER
ISHDN
VL
IL
DE = low, RE = high
No load on RO
Differential Driver Output
Differential Driver Preemphasis
Ratio
VOD
DPRE
Figure 1, Figure 2
Preemphasis
enabled, 4.5V ≤ VCC
5.5V (Note 3)
RL = 54Ω
RL = 100Ω
RL = 54Ω
RL = 100Ω
Change in Magnitude of Differential
Output Voltage
ΔVOD
RL = 54Ω, Figure 1 (Note 4)
Driver Common-Mode Output
Voltage
VOC
RL = 54Ω, Normal mode and preemphasis,
Figure 1
Change In Magnitude of
Common-Mode Voltage
ΔVOC RL = 100Ω or 54Ω, Figure 1 (Note 4)
Single-Ended Driver Output High
Single-Ended Driver Output Low
VOH
VOL
Y or Z output
Y or Z output
IOUT = -20mA
IOUT = +20mA
Differential Output Capacitance
Driver Short-Circuit Output
Current
COD
|IOST|
DE = RE = high, f = 4MHz
-15V ≤ VOUT ≤ +15V
RECEIVER
Input Current (A and B)
Differential Input Capacitance
IA,B
CA,B
DE = GND, VCC =
GND, +3.6V or 5.5V
VIN = +12V
VIN = -7V
Between A and B, DE = GND,
f = 2MHz
Common Mode Voltage Range
Receiver Differential Threshold
High
VCM
VTH_H
-15V ≤ VCM ≤ +15V
Receiver Differential Threshold
Low
VTH_L -15V ≤ VCM ≤ +15V
Receiver Input Hysteresis
Differential Input Fail-Safe Level
ΔVTH
VTH_FS
VCM = 0V, time from last transition is
< tD_FS
-15V ≤ VCM ≤ +15V
MIN
3.0
4.5
1.6
1.5
2.0
1.33
1.33
2.2
-1000
-15
+50
-200
-50
TYP
5
12.7
16.4
1.37
1.37
VCC/2
50
50
250
MAX UNITS
5.5
5.5
16.5
5
VCC
23
V
mA
µA
V
µA
1.41
1.41
0.2
3
0.2
0.8
250
V
V/V
V
V
V
V
V
pF
mA
+1100
+15
+200
-50
+50
μA
pF
V
mV
mV
mV
mV
www.maximintegrated.com
Maxim Integrated 3






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