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MAX14820 Datasheet Download - Maxim Integrated

Номер произв MAX14820
Описание IO-Link Device Transceiver
Производители Maxim Integrated
логотип Maxim Integrated логотип 



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MAX14820 Даташит, Описание, Даташиты
EVALUATION KIT AVAILABLE
MAX14820
IO-Link Device Transceiver
General Description
The MAX14820 transceiver is suitable for IO-Link®
devices and 24V binary sensors/actuators. All specified
IO-Link data rates are supported. In IO-Link applica-
tions, the transceiver acts as the physical layer interface
to a microcontroller running the data-link layer protocol.
Additional 24V digital inputs and outputs are provided.
Two internal linear regulators generate common sensor
and actuator power requirements: 5V and 3.3V.
On-board C/Q and DO drivers are independently config-
urable for push-pull, high-side (PNP), or low-side (NPN)
operation. The device detects the IO-Link C/Q wake-up
condition and generates a wake-up signal on the active-
low WU output. The C/Q and DI inputs have selectable
current loads for use in actuators.
An SPI™ interface allows configuration and monitoring of
the devices. Extensive alarm conditions are detected and
communicated through the IRQ output and the SPI inter-
face. The devices feature reverse-polarity, short-circuit,
and thermal protection. All power lines are monitored for
undervoltage conditions.
The C/Q driver is specified for sinking/sourcing 300mA.
The DO driver is specified for sinking/sourcing 135mA.
The device is available in a 4mm x 4mm, 24-pin TQFN
package, and is specified over the extended -40NC to
+85NC temperature range.
Applications
IO-Link Sensors Industrial Sensors and Actuators
IO-Link Actuators
Features
S IO-Link Specification v.1.0 and v.1.1 Physical Layer
Compliant
S Supports COM1, COM2, and COM3 Data Rates
S IO-Link Device Wake-up Detection
S Push-Pull, High-Side, or Low-Side Outputs
S 300mA Specified C/Q Output Drive
S 1µF C/Q and DO Load-Drive Capability
S Auxiliary 24V, 135mA Digital Output
S Auxiliary 24V Digital Input
S Optional 6mA/7mA Current Loads at Both 24V Inputs
S 5V and 3.3V Linear Regulators
S Reverse-Polarity Protected 24V Supply Output
S EMI Emission Control Through Slew-Controlled Driver
S SPI Interface for Configuration and Monitoring
S 2.5V to 5V Logic Interface Levels
S Reverse-Polarity and Short-Circuit Protection on All
24V Inputs/Outputs
S High-Temperature Warning and Thermal Shutdown
S Extensive Fault Monitoring and Reporting
S -40NC to +85NC Operating Temperature Range
S 4mm x 4mm TQFN Package
Typical Operating Circuit
5V
3.3V
10k
VCC
GPIO2
SPI
IRQ
MICROCONTROLLER RX
TX
RTS
GPIO1
GND
1μF 0.1μF
10
1μF
UV VL TXQ LDO33 V5
LDOIN VP VCC
WU MAX14820 DO
RX
TXC C/Q
TXEN
LO DI GND
0.8
1μF
L+
1
2
34
L-
IO-Link is a registered trademark of Profibus User Organization (PNO).
SPI is a trademark of Motorola, Inc.
Ordering Information appears at end of data sheet.
For related parts and recommended products to use with this part, refer to: www.maximintegrated.com/MAX14820.related
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-5787; Rev 6; 3/14







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MAX14820 Даташит, Описание, Даташиты
MAX14820
IO-Link Device Transceiver
Functional Diagram
UV
VL
CS
SDI
SDO
SCLK
IRQ
RX
WU
TXQ
TXC
TXEN
LI
LO
LDO33 V5 LDOIN VP
UV MONITOR
3.3V LDO
5V LDO
VCC
STATUS
AND
CONFIGURATION
WAKE-UP
DETECT
FILTER
DRIVER
MAX14820
DI
LOAD
DRIVER
DoEn
PROTECTION
C/Q
LOAD
C/Q
PROTECTION
PROTECTION
GND
DI
PROTECTION
DO
Maxim Integrated
  2







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MAX14820 Даташит, Описание, Даташиты
MAX14820
IO-Link Device Transceiver
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
VCC..........................................................................-40V to +40V
VP (IVP < 50mA)...... the higher of -0.3V and (VCC - 1V) to +40V
LDOIN.....................................................................-0.3V to +40V
V5...................... -0.3V to the lesser of (VLDOIN + 0.3V) and +6V
LDO33...................... -0.3V to the lesser of (V5 + 0.3V) and +6V
VL..............................................................................-0.3V to +6V
DI ............................................................................-40V to +40V
C/Q, DO....................... MIN: the higher of -40V and (VCC - 40V)
MAX: the lesser of +40V and (VCC + 40V)
Logic Inputs
TXC, TXQ, TXEN, LO, CS, SDI, SCLK...... -0.3V to (VL + 0.3V)
Logic Outputs
RX, WU, LI, SDO, IRQ.............................. -0.3V to (VL + 0.3V)
UV.........................................................................-0.3V to +6V
Continuous Current Into Any Logic Pin............................ Q50mA
Continuous Power Dissipation
TQFN (derate 27.8mW/NC above +70NC)..................2222mW
Operating Temperature Range........................... -40NC to +85NC
Maximum Junction Temperature......................................+150NC
Storage Temperature Range............................. -65NC to +150NC
Lead Temperature (soldering, 10s).................................+300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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 THERMAL CHARACTERISTICS (Note 1)
TQFN
Junction-to-Ambient Thermal Resistance (BJA)...........36NC/W
Junction-to-Case Thermal Resistance (BJC)..................3NC/W
Note 1: 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.
DC ELECTRICAL CHARACTERISTICS
(VCC = 18V to 36V, VL = 2.3V to 5.5V, VGND = 0V; all logic inputs at VL or GND; TA = -40NC to +85NC, unless otherwise noted. Typical
values are at VCC = 24V, VL = 3.3V, and TA = +25NC, unless otherwise noted.) (Note 2)
PARAMETER
VCC Supply Voltage
VCC Supply Current
VCC Undervoltage Lockout
Threshold
VCC Undervoltage Lockout
Threshold Hysteresis
V5 Supply Current
V5 Undervoltage Lockout
Threshold
VL Logic-Level Supply Voltage
VL Logic-Level Supply Current
VL Undervoltage Threshold
5V LDO (V5)
LDOIN Input Voltage Range
LDOIN Supply Current
SYMBOL
VCC
ICC
VCCUVLO
CONDITIONS
For driver operation
VCC = 24V, C/Q as input, no load on V5
or LDO33, LDOIN not connected to VP,
VLDOIN = 24V
VCC falling
VCCUVLO_HYST
I5_IN
LDOIN shorted to V5, external 5V applied
to V5, no switching, LDO33 disabled
V5UVLO
V5 falling
VL
IL
VLUVLO
All logic inputs at VL or GND
VL falling
VLDOIN
ILDOIN
VLDOIN = 24V, C/Q is configured as an
input, no load on V5 or LDO33
MIN
9
6
2.3
0.65
7
TYP
1
7.4
200
3
2.0
0.95
2.5
MAX
36
UNITS
V
2.5 mA
9
5.5
5
1.30
36
5
V
mV
mA
V
V
FA
V
V
mA
Maxim Integrated
  3










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