TCAN2451-Q1中文资料具有降压稳压器和局部联网功能的汽车级 CAN FD SIC 系统基础芯片 (SBC)数据手册TI规格书

描述 Description

The TCAN245x-Q1 is a family of system basis chips (SBC) that provide a control area network flexible data rate capable (CAN FD) transceiver that meets the physical layer requirements of ISO-11898:2-2024 including the SIC specification. The CAN FD transceiver supports data rates up to 8Mbps. The TCAN245x-Q1 integrates a buck regulator (VCC1) that can output either 3.3V or 5V, and provide up to 1A output current. The buck regulator integrates spread spectrum modulation to improve EMC performance. VCC2 LDO provides 5V output for loads up to 200 mA. TCAN2451-Q1 supports Partial Networking by recognizing a selective wakeup frame (WUF)

The TCAN245x-Q1 includes features such as LIMP, four local wake inputs and four high side switches. The high side switch can be on/off, 10-bit PWM or timer controlled. Using the GFO pin, it is possible to control an external CAN FD, LIN transceiver, CAN SBC or LIN SBC. 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.

特性 Features

AEC-Q100 qualified for automotive applications

Meets the requirements of ISO 11898-2:2024 for CAN-FD and CAN-FD Signal Improvement Capability (SIC)

Integrated 3.3V or 5V Buck regulator (VCC1) with 1 A output capability

Pin-selectable output (3.3V or 5V) based on VSEL pin connection

Switching frequency options from 1.8MHz to 2.4MHz to enable a smaller on-board inductor

Integrated spread spectrum modulation to improve EMC performance



5V LDO regulator (VCC2) supporting up to 200mA with off-board capability and short-to-battery protection

Multiple methods to wake-up from Sleep mode

CAN bus wake-up pattern (WUP)

Local wake up (LWU) via four WAKE pins

Cyclic sensing wake-up using a high-side switch (HSS4)



Selective wake/partial networking capability, TCAN2451-Q1 only

Digital wake-up using SW pin



WAKE pins configurable as ID pins to identify ECU location in the vehicle

Four high-side switches to support multiple loads and allow for cyclic sensing wake

Fail-safe output pin (LIMP) that can also be used optionally as a low-side switch

±58V Bus fault protection

Advanced CAN bus fault diagnostics

Timeout, window and Q&A watchdog support

Access to EEPROM to save device configuration

Available in 32-pin leadless package with wettable flank for improved automated optical inspection (AOI) capability