1 Features

1• Meets the Requirements of the ISO 11898-2

(2016) Physical Layer Standard

• External Polarity Control Through SW (switch) Pin

– Can be Used to Switch Polarity to Normal

(Default) or Reverse Configuration of CAN Bus

• Dual Power Supplies

– 5-V VCC Pin for CAN Driver and Receiver

– 2.8-V to 5-V VIO Pin for Powering RXD, TXD

and SW pins

• Wide Operating Ranges

– ±46-V Bus Fault Protection

– ±12-V Common Mode

– –40°C to 125°C Ambient Temperature

• Protection Feature

– HBM ESD Protection up to ±12 kV

– Under Voltage Protection on VCC and VIO

Supplies

– TXD Dominant Time Out (TXD DTO) –

Supports Data Rates Down to 9.2 kbps

– Thermal Shutdown Protection (TSD)

• Optimized Behavior when Unpowered

– Bus and Logic Terminals are High Impedance

(No Load to Operating Bus or Application)

– Power Up and Down Glitch Free Operation

• Fast Loop Times: 150 ns

2 Applications

• Building Automation

– Building Security Gateway

– HVAC Gateway and System Controller

– Elevator Main Panel

3 Description

The TCAN4420 is a high-speed Controller Area

Network (CAN) transceiver that meets the

specifications of the ISO 11898-2 (2016) physical

layer standard requirements. The device also allows

the CAN bus polarity to be controlled externally by a

microcontroller through the SW pin. The TCAN4420

includes many protection features providing device

and CAN network robustness. Support for 2.8 V to 5

V MCUs and I/Os is included through the VIO pin.