IFX1051
Industrial High Speed CAN-FD Transceiver
1
Features
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Overview
Compliant to ISO 11898-2
Wide common mode range for electromagnetic immunity
(EMI)
Very low electromagnetic emission (EME)
Excellent ESD robustness: 10 kV HBM
Guaranteed loop delay symmetry to support CAN FD data frames up to 2 MBit/s
Suitable for 12 V and 24 V applications
V
IO
input for voltage adaption to the microcontroller supply
Extended supply range on
V
CC
and
V
IO
supply
CAN short circuit proof to ground, battery and
V
CC
TxD time-out function with very long TxD time-out timing:
≥
4.5 ms
Low CAN bus leakage current in power-down state
Overtemperature protection
Protected against transients
Receive-only mode
Green Product (RoHS compliant)
Two package variants: PG-DSO-8 and tiny PG-TSON-8
Applications
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Embedded Machine Control and Factory Automation (for example sensors and actuators)
Building Automation (for example HVAC systems, automatic doors, sun blinds)
Traffic Lights and Variable Message Signs (VMS)
Elevator and Escalator applications
Motor- and Motion-Control (for example renewable power generation: pitch control in wind power or sun-
tracking in photovoltaic)
any kind of CAN-application with the need of higher bandwidth
Description
The IFX1051 is a transceiver designed for HS CAN networks in industrial applications. Acting as interface
between the physical bus layer and the CAN protocol controller, the IFX1051 drives the signals to the bus and
protects the microcontroller against interferences generated within the network. Based on the high symmetry
Data Sheet
www.infineon.com/transceivers
1
Rev. 1.0
2017-03-15
IFX1051
Industrial High Speed CAN-FD Transceiver
Overview
of the CANH and CANL signals, the IFX1051 provides a very low level of electromagnetic emission (EME) within
a wide frequency range.
The IFX1051 is available in a small, leadless PG-TSON-8 package as well as in a standard PG-DSO-8 package.
The packages are RoHS compliant and halogen free and moreover support the solder joint requirements for
automated optical inspection (AOI). The IFX1051 is fulfilling or exceeding the requirements of the ISO11898-2.
The IFX1051 provides a digital supply input
V
IO
that allows direct interfacing to 3.3 V microcontrollers and in
addition offers a Receive-only mode.
One key feature of the IFX1051 is that it fulfills the enhanced physical layer requirements for CAN FD (CAN with
Flexible Data Rate) and supports data rates up to 2 MBit/s. This allows the usage of the IFX1051 in networks
using CAN FD protocol next to all industrial CAN applications using the classical protocol. CAN FD based
networks offer a considerably increased bandwidth compared to classical CAN protocol because it allows
increased data bitrate in combination with increased payload per message and thus making CAN FD a
powerful and future-oriented alternative for all existing CAN applications whenever bandwidth limitations
become an issue.
On the basis of a very low leakage current on the HS CAN bus interface the IFX1051 provides an excellent
passive behavior in power-down state. These and other features make the IFX1051 exceptionally suitable for
mixed supply HS CAN networks. In addition the IFX1051 provides excellent ESD immunity together with a very
high electromagnetic immunity (EMI). Moreover the IFX1051 is equipped with a TxD time-out functionality
which protects the CAN bus from being blocked if the transceiver receives by error a permanent low level
signal on TxD from its controller. The implementation of this functionality with a very long delay timing of
> 4.5 ms allows at the same time the usage of the device in physically very long bus networks as they can be
found in many industrial applications.
The two different operating modes - Normal mode and Receive-only mode, its additional fail-safe features like
TxD time-out but as well the CAN FD capability and optimized output slew rates on the CANH and CANL signals
make the IFX1051 an ideal choice for large HS CAN networks with demand for high data transmission rates.
The qualification of this product is based on JEDEC JESD47 and may reference existing qualification results of
similar products. Such referring is justified by the structural similarity of the products. The product is not
qualified and manufactured according to the requirements of Infineon Technologies with regard to
automotive and/or transportation applications. Infineon Technologies administrates a comprehensive
qualify management system according to the latest version of the ISO9001 and ISO/TS 16949
The most updated certificates of the aforesaid ISO9001 and ISOTS 16949 are available on the Infineon
Technologies webpage
http://www.infineon.com/cms/en/product/technology/quality/
Type
IFX1051LE
IFX1051SJ
Package
PG-TSON-8
PG-DSO-8
Marking
1051LE
1051SJ
Data Sheet
2
Rev. 1.0
2017-03-15
IFX1051
Industrial High Speed CAN-FD Transceiver
Table of Contents
1
2
3
3.1
3.2
4
4.1
4.2
4.2.1
4.2.2
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
5
5.1
5.2
5.3
5.4
5.5
6
6.1
6.2
6.3
7
7.1
7.2
8
8.1
8.2
8.3
8.3.1
8.3.2
9
10
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
High Speed CAN Physical Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Normal-operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Receive-only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power-up and Undervoltage Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power-down State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Forced Power-save Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Power-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Undervoltage on the Digital Supply
V
IO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Undervoltage on the Transmitter Supply
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Voltage Adaption to the Microcontroller Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Fail Safe Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unconnected Logic Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TxD Time-out Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Delay Time for Mode Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
12
12
12
13
13
14
14
15
15
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Functional Device Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD Robustness according to IEC61000-4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Examples for Mode Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Change while the TxD Signal is “low” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mode Change while the Bus Signal is dominant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
23
23
24
25
26
27
Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Data Sheet
3
Rev. 1.0
2017-03-15
IFX1051
Industrial High Speed CAN-FD Transceiver
Block Diagram
2
Block Diagram
3
5
V
CC
V
IO
Transmitter
CANH
7
Driver
6
Temp-
protection
Timeout
1
TxD
CANL
Mode
control
8
RM
Receiver
Normal-mode receiver
4
RxD
V
CC
/2
=
Bus-biasing
GND 2
Figure 1
Functional block diagram
Data Sheet
4
Rev. 1.0
2017-03-15
IFX1051
Industrial High Speed CAN-FD Transceiver
Pin Configuration
3
3.1
Pin Configuration
Pin Assignment
TxD
TxD
GND
V
CC
RxD
1
2
PAD
3
4
6
5
8
7
RM
CANH
CANL
V
IO
RxD
GND
V
CC
1
8
RM
CANH
CANL
V
IO
2
7
3
6
4
5
IFX1051LE
IFX1051SJ
Figure 2
Pin configuration (top-side x-ray view)
3.2
Pin Definitions
Table 1
Pin No.
1
2
3
4
5
Pin definitions and functions
Symbol
TxD
GND
V
CC
RxD
V
IO
Function
Transmit Data Input;
internal pull-up to
V
IO
, “low” for dominant state.
Ground
Transmitter Supply Voltage;
100 nF decoupling capacitor to GND required.
Receive Data Output;
“low” in dominant state.
Digital Supply Voltage;
supply voltage input to adapt the logical input and output voltage levels of the
transceiver to the microcontroller supply,
100 nF decoupling capacitor to GND required.
CAN Bus Low Level I/O;
“low” in dominant state.
CAN Bus High Level I/O;
“high” in dominant state.
Receive-only Mode Input;
internal pull-down to GND, “low” for normal-operating mode.
Exposed Pad;
Connect to PCB heat sink area. Do not connect to other potential than GND.
5
Rev. 1.0
2017-03-15
6
7
8
CANL
CANH
RM
PAD
–
(IFX1051LE only)
Data Sheet
PCB Design
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