improves communication and safety by integrating gal-
vanic isolation between the CAN-protocol controller-side
(TDX, RXD) of the device and the physical wires of the
CAN network (CANH, CANL) cable-side/bus-side of
the transceiver. Isolation improves communication by
breaking ground loops and reduces noise where large
differences in ground potentials exists between ports.
The MAX14882 provides up to 5000V
RMS
(60s) of
galvanic isolation and a continuous working voltage of up
to 848V
RMS
, while operating at the maximum high-speed
CAN data rate of 1Mbps.
The MAX14882 features additional integrated protection for
robust communication. The ±25V receiver input common-
mode range exceeds the ISO 11898 specification requirement
of -2V to +7V. Additionally, the CANH and CANL IOs are
fault tolerant up to ±54V and are protected from electrostatic
discharge (ESD) up to ±15kV to GNDB on the bus-side, as
specified by the Human Body Model (HBM).
Interfacing with CAN-protocol controllers is simplified by
the wide 3.0V to 5.5V supply voltage range (V
DDA
) on the
controller-side of the device. The supply voltage range for
the CAN bus-side of the device is 4.5V to 5.5V (V
DDB
). An
integrated transformer driver and LDO can be used, with
an external transformer, to generate the isolated supply
for V
DDB
.
Field installation and troubleshooting are simplified by the
polarity select (POL) input. POL swaps the functions of
the CANH and CANL IOs, allowing for simple software
correction of cross-wired bus cables in the field.
The MAX14882 operates over the -40°C to +125°C
temperature range and is available in a 16-pin wide SOIC
(W SOIC) package with 8mm of creepage and clearance.
●
Integrated Protection for More Robust
Communication
• 5kV
RMS
Withstand Galvanic Isolation (60s)
• ±25V Common Mode Range
• ±54V Fault Protection
• ±15kV ESD (HBM) Protection on Driver Outputs/
Receiver Inputs
●
High-Performance Transceiver Enables Flexible
Designs
• Wide 3.0V to 5.5V Supply Voltage Range for CAN
Controller Interface
• Field Bus Polarity Control (POL)
• Integrated Transformer Driver for Power Transfer to
Bus-Side
• Integrated LDO for Powering CAN Bus-Side
●
Safety Regulatory Approvals (Pending)
• UL1577 (Basic Insulation)
• cUL According to CSA Bulletin 5A
Ordering Information
appears at end of data sheet.
Simplified Block Diagram
3.3V
TD1
V
DDA
TD2
XFMR
DRIVER
V
LDO
5V LDO
V
DDB
POL
RXD
CANH
CANL
TXD
Applications
●
HVAC
●
Building Automation
●
Industrial Controls
●
Switching Gear
MAX14882
GNDA
GNDB
19-100246; Rev 0; 2/18
MAX14882
5kV
RMS
Isolated CAN Transceiver
with Integrated Transformer Driver
Short-Circuit Duration (RXD to GNDA or V
DDA
) .......Continuous
TD1, TD2 Continuous Current ...........................................±1.4A
Continuous Power Dissipation (T
A
= +70°C)
16-pin W SOIC (Derate 14.1mW/°C above +70°C) ... 1126.8mW
Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -60°C to +150°C
Lead Temperature (soldering, 10s) ................................ +300°C
Soldering Temperature (reflow) .......................................+260°C
Absolute Maximum Ratings
V
DDA
to GNDA ........................................................-0.3V to +6V
V
DDB
to GNDB ........................................................-0.3V to +6V
V
LDO
to GNDB ......................................................-0.3V to +16V
TD1,TD2 to GNDA.................................................-0.3V to +12V
TXD, POL to GNDA.................................................-0.3V to +6V
RXD to GNDA......................................... -0.3V to (V
DDA
+ 0.3V)
I.C. to GNDB .......................................... -0.3V to (V
DDB
+ 0.3V)
CANH or CANL to GNDB (Continuous) .................-54V to +54V
Short-Circuit Duration (CANH to CANL) ...................Continuous
Short Circuit Duration (CAN_ to GNDB or V
DDB
) .....Continuous
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
Wide 16-SOIC
Outline Number
Land Pattern Number
Thermal Resistance, Single-Layer Board:
Junction to Ambient (θ
JA
)
Junction to Case (θ
JC
)
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θ
JA
)
Junction to Case (θ
JC
)
71 ºC/W
23 ºC/W
107 ºC/W
22 ºC/W
PACKAGE CODE
21-0042
90-0107
W16+10
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
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