TCAN2845-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

• Meets the requirements for CAN flexible data (FD)

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 shortcircuit

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

2 Applications

• Body electronics and lighting

• Body Control Modules

• Infotainment and cluster

• Hybrid, electric and power train systems

• Industrial transportation

3 Description

The TCAN284x-Q1 is a family of system basis chips

(SBC) that provide a control area network flexible

data rate capable (CAN FD) transceiver that supports

selective wake. The TCAN2847x-Q1 includes a local

interconnect network (LIN) transceiver. The CAN FD

transceiver 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 TCAN284x-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.