SLLSFX4A
February 2025 – February 2025
TCAN857-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
ESD Ratings, IEC Specification
5.4
Recommended Operating Conditions
5.5
Thermal Characteristics
5.6
Power Supply Characteristics
5.7
Dissipation Ratings
5.8
Electrical Characteristics
5.9
Switching Characteristics
5.10
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Pin Description
7.3.1.1
TXD
7.3.1.2
GND
7.3.1.3
VCC
7.3.1.4
RXD
7.3.1.5
VIO
7.3.1.6
CANH and CANL
7.3.1.7
S (Silent)
7.3.2
CAN Bus States
7.3.3
TXD Dominant Timeout (DTO)
7.3.4
CAN Bus Short-circuit Current Limiting
7.3.5
Thermal Shutdown (TSD)
7.3.6
Undervoltage Lockout
7.3.7
Unpowered Device
7.3.8
Floating pins
7.4
Device Functional Modes
7.4.1
Operating Modes
7.4.2
Normal Mode
7.4.3
Silent Mode
7.4.4
Driver and Receiver Function
8
Application Information Disclaimer
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.1.1
CAN Termination
8.2.2
Detailed Design Procedures
8.2.2.1
Bus Loading, Length and Number of Nodes
8.2.3
System Examples
8.2.4
Application Curve
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
AEC-Q100 Qualified for automotive applications
Human body model (HBM) ESD protection: ±12KV for CANH and CANL pins as per
AEC Q100-002
Charged-device model (CDM) ESD protection: ±500V as per AEC Q100-011
IEC 61000-4-2 Contact discharge: ±8KV (unpowered)
Compatible with ISO 11898-2:2024 physical layer standard
Functional Safety-Capable
Documentation available to aid in functional safety system design
Support of classical CAN and optimized CAN FD performance at 2Mbps and 5Mbps
Short and symmetrical propagation delays for enhanced timing margin
TCAN857V-Q1
I/O voltage range supports 2.9V to 5.25V
Support for 12V battery applications
Receiver common mode input voltage: ±12V
Protection features:
Bus fault protection: ±40V
Undervoltage protection
TXD-dominant time-out (DTO)
Thermal-shutdown protection (TSD)
Operating modes: Normal and Silent
Optimized behavior when unpowered
Bus and logic pins are high impedance (no load to operating bus or application)
Hot-plug capable: power up/down glitch free operation on bus and RXD output
8-Pin SOIC, small footprint SOT-23 and leadless VSON-8 package with improved automated optical inspection (AOI) capability