TCAN2857-Q1中文资料Automotive CAN FD SIC and LIN System Basis Chip (SBC) with partial networking数据手册TI规格书

描述 Description

The TCAN285x-Q1 is a family of system basis chips (SBC) that provide a control area network flexible data rate capable (CAN FD) SICtransceiver that supports selective wake. The TCAN2857-Q1 includes a local interconnect network (LIN) transceiver. The CAN FD SICtransceiver supports data rates up to 8Mbps while the LIN transceiver supports fast mode data rates up to 200kbps. The VCC1 LDO provides 3.3V or 5V ±2% with up to 250mA of current and determines the digital IO logic levels. If more current is needed, an external PNP transistor can be used to support up to 350mA and voltages of 1.8V, 2.5V, 3.3V or 5V. VCC2 LDO provides 5V up to 200mA.

The TCAN285x-Q1 includes features such as LIMP, three local wake inputs and four high side switches. The high side switch can be on/off, 10-bit PWM or timer controlled. Controlling an external CAN FD, LIN transceiver, CAN SBC or LIN SBC is possible using the GFO pin. The WAKE pins can be configured for static sensing, cyclic sensing (with HSS4 pin) and pulse based for waking up. These devices provide EEPROM to store specific device configuration information; thus, avoiding extensive reprogramming after power fluctuations. WAKE1 and WAKE2 can enable an internal switch between pins to enable external VBAT monitoring. WAKE3 can be configured as a direct drive control pin for any combinations of high-side switches when cyclic sensing wake is enabled.

特性 Features

AEC-Q100 qualified for automotive applications

Meets the requirements for CAN flexible data (FD) including the signal improvement capability (SIC) per ISO 11898-2:2024

Local interconnect network (LIN) physical layer specification ISO/DIS 17987–4:2024 compliant and conforms to SAEJ2602 recommended practice for LIN

Functional Safety Quality-Managed

Simplifies system power management with up to three regulators

Low drop out (LDO) regulator supporting up to 250mA for 3.3V or 5V MCUs (VCC1)

Short-to-battery protected 5V LDO regulator supporting up to 200mA externally (VCC2)

Control of an external PNP transistor supporting up to 350mA at 1.8V, 2.5V, 3.3V or 5V (VEXCC)



Multiple methods to wake from sleep mode

CAN and LIN bus wake up pattern (WUP)

Optional, CAN selective wake up frame (WUF) capability (partial networking)

Local wake up (LWU) via WAKE pins

Cyclic sensing wake up support with HSS4



Digital wake up using the SW pin



Four high-side switches for loads up to 150mA

Protection and Diagnostic Features

Timeout, window and Q&A watchdog support

Undervoltage (UV), overvoltage (OV) and short-circuit supervision on regulator outputs

Fail-safe output (LIMP)

UV supervision of VSUP and VHSS; OV supervision of VHSS

Advanced CAN bus fault diagnostics

±58V CAN bus fault tolerance

Integrated system level ESD protection



Customer-accessible EEPROM to save device configuration

QFN (32) package with improved automated optical inspection (AOI) capability