Digital Input. MAX22192 Datasheet

MAX22192 Input. Datasheet pdf. Equivalent


Maxim Integrated MAX22192
Click here for production status of specific part numbers.
MAX22192
EVALUATION KIT AVAILABLE
Octal Industrial Digital Input with
Diagnostics and Digital Isolation
General Description
The MAX22192 is an IEC 61131-2 compliant industrial
digital input device with integrated digital isolation. The
MAX22192 translates eight, 24V current-sinking, indus-
trial inputs to an isolated serialized SPI-compatible output
that interfaces with 1.71V to 5.5V logic voltage. A current-
setting resistor allows the MAX22192 to be configured for
Type 1, Type 2, or Type 3 inputs. For proximity switches,
the field-wiring is verified using the wire break feature.
When wire break is enabled, the LFAULT output is assert-
ed and a register flag set if the input current drops below
the wire break threshold for more than 20ms. Additional
diagnostics that assert LFAULT include: overtemperature
protection, low 24V field supply, 24V field supply missing,
and CRC communication error.
For robust operation in industrial environments, each input
includes a programmable glitch filter. The filter delay on
each channel can be independently programmed to one
of eight values between 50µs and 20ms, or filter bypass.
The MAX22192 has an isolated 4-pin SPI interface, and
in addition uses isolated LLATCH input for synchronizing
input data across multiple devices in parallel, and iso-
lated LFAULT output for instantly alerting the host of any
diagnostic issues. The digital signals with a name starting
with L are logic-side signals, and the digital signals with a
name starting with F are field-side signals.
The MAX22192 field-side accepts a single 7V to 65V sup-
ply to the VDD24F pin. When powered by the field supply,
the MAX22192 generates a 3.3V output on the VDD3F pin
from an integrated LDO regulator, which can provide up to
25mA of current for external loads in addition to powering
the MAX22192. Alternatively, the MAX22192 can be pow-
ered from a 3.0V to 5.5V supply connected to the VDD3F
pin. The logic-side of the MAX22192 is powered from a
single 1.71V to 5.5V supply to the VDDL pin to interface
with 1.8V, 3.3V, or 5V logic levels.
The MAX22192 has an isolation rating of 600VRMS for 60
seconds and is available in a 70-pin GQFN package with
2.3mm clearance and creepage. The package material
has a minimum comparative tracking index (CTI) of 600V,
which gives it a group I rating in creepage tables.
Benefits and Features
● High Integration Reduces BOM Count and Board Space
• Eight Input Channels with Serializer
• Integrated Isolation of 600VRMS for 60s (VISO)
• Operates Directly from Field Supply (7V to 65V)
• Compatible with 1.8V, 3.3V or 5V Logic
• 6mm x 10mm GQFN Package
● Reduced Power and Heat Dissipation
• Accurate Input-Current Limiters
• Energyless Field-Side LED Drivers
● Fault Tolerant with Built-In Diagnostics
• Input Protection to ±40V with Low-Input Leakage
Current
• Wire-Break Detection
• Integrated Field-Supply Voltage Monitors
• Integrated Overtemperature Monitors
• 5-Bit CRC Code Generation for Error Detection
● Configurability Enables a Wide Range of Applications
Configurable IEC 61131-2 Type 1, 2, 3 Inputs
Configurable Input Current-Limiting from 0.5mA to
3.4mA
• Selectable Input Glitch Filter
• Capable of Daisy-Chaining Other Field-Side De-
vices Sharing Isolated SPI
● Robust Design
• ±8kV Contact ESD and ±15kV Air-Gap ESD Using
Minimum 1kΩ Resistor
±1kV Surge Tolerant Using Minimum 1kΩ Resistor
• -40°C to +125°C Ambient Operating Temperature
Applications
● Programmable Logic Controllers
● Industrial Automation
● Process Automation
Safety Regulatory Approvals
● UL According to UL1577
● cUL According to CSA Bulletin 5A
Ordering Information and Typical Operating Circuits appear
at end of data sheet.
19-100406; Rev 2; 3/19


MAX22192 Datasheet
Recommendation MAX22192 Datasheet
Part MAX22192
Description Octal Industrial Digital Input
Feature MAX22192; Click here for production status of specific part numbers. MAX22192 EVALUATION KIT AVAILABLE Octal .
Manufacture Maxim Integrated
Datasheet
Download MAX22192 Datasheet




Maxim Integrated MAX22192
MAX22192
Isolated Octal Digital Input
Octal Industrial Digital Input with
Diagnostics and Digital Isolation
24V 150Ω
1µF 0.1µF
3.3V
0.1µF
1µF
1.8V
0.1µF
1µF
FIELD INPUT
FIELD INPUT
FIELD INPUT
24VM
7.5kΩ
24kΩ
1.5kΩ
1.5kΩ
1.5kΩ
INPUT AT PIN
470
470
470
VDD24F VDD3F VLF
REFDI
REFWB
EXTVM
IN1
LED1
IN2
LED2
M1 M0
MAX22192
VDDL
AFS
LCS
LSCLK
LSDI
LSDO
LLATCH
IN8
LED8
LEDC2
LEDC1
LEDC0
SDOEN
LFAULT
LEDR2
LEDR1
LEDR0
FCS FSCLK FSDO FSDI OSDI FFAULT IFAULT OREADY IREADY FLATCH GNDF GNDL
VDD
GPI
1.8V
4.7kΩ
CS
SCLK
MOSI MICRO
CONTROLLER
MISO
GPO
GPI or INT
GND
4.7kΩ
4.7kΩ
3.3V
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Maxim Integrated MAX22192
MAX22192
Octal Industrial Digital Input with
Diagnostics and Digital Isolation
Absolute Maximum Ratings
VDD3F, VLF to GNDF..............................................-0.3V to +6V
VDD24F to GNDF..................................................-0.3V to +70V
FSCLK, FCS, OSDI, FSDO to GNDF........-0.3V to (VLF + 0.3V)
FLATCH to GNDF......................................-0.3V to (VLF + 0.3V)
FSDI, IFAULT, IREADY to GNDF............................-0.3V to +6V
OREADY, FFAULT to GNDF....................................-0.3V to +6V
LEDC_, LEDR_ to GNDF..................... -0.3V to (VDD3F + 0.3V)
REFWB, REFDI to GNDF.................... -0.3V to (VDD3F + 0.3V)
M1, M0, EXTVM to GNDF........................................-0.3V to +6V
IN1 – IN8 to GNDF..................................................-40V to +40V
LED1 – LED8 to GNDF............................................-0.3V to +6V
VDDL to GNDL.........................................................-0.3V to +6V
LSCLK, LCS, LSDI, LLATCH, SDOEN to GNDL.....-0.3V to +6V
LFAULT to GNDL.....................................................-0.3V to +6V
LSDO, AFS to GNDL...............................-0.3V to (VDDL + 0.3V)
Maximum Current for All Digital Output Pins......................20mA
Continuous Power Dissipation (70-GQFN)
Multilayer Board TA = +70°C......................................2286mW
Derate above +70°C...............................................28.6mW/°C
Operating Temperature Range.......................... -40°C to +125°C
Maximum Junction Temperature......................................+150°C
Storage Temperature Range............................. -65°C to +150°C
Lead Temperature (soldering, 10s).................................. +300°C
Soldering (reflow).............................................................+260°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
PACKAGE TYPE: 70 GQFN
Package Code
R70610M+1
Outline Number
21-100252
Land Pattern Number
90-100111
THERMAL RESISTANCE, FOUR-LAYER BOARD
Junction to Ambient (θJA)
35°C/W
Junction to Case (θJC)
2.9°C/W
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.
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.
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Maxim Integrated 3







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