OPTIREG™ | Lite SBC family

Overview

Infineon's Lite System Basis Chips (SBC) combine a power supply, CAN FD, and a charge pump in one device

Infineon's Lite System Basis Chip (SBC) family offers high-integration and high-performance with optimized system cost for various automotive applications.

Key features

  • TLE9461 (LDO): 5 V/3.3 V (150 mA)
  • TLE9471 (DCDC): 5 V/3.3 V (500 mA)
  • 5 V linear voltage reg. (100 mA)
  • CAN FD up to 5 Mbps
  • CAN PN FD tolerant (“-3” variants)
  • Diagnosis & supervision functions
  • Fail output and General Purpose I/O
  • Low-power & Fail-safe operat. mode
  • Full wake capability
  • Charge pump output
  • SW compatibility w/in SBC family

High integration with Lite SBC technology

The Lite SBCs family offers two variants: Lite LDO SBC with a low-dropout voltage regulator of 150 mA and the Lite DC-DC SBC with a DC-DC buck converter of up to 500 mA. Both variants are available as 5 V or 3.3 V output voltage options for microcontrollers, network transceivers, sensors, and other peripherals’ power supply. 

They feature an auxiliary 5 V integrated low-drop voltage regulator with up to 100 mA. The communication interface incorporates one CAN transceiver with a flexible data-rate performance of up to 5 Mbps according to ISO 11898-2:2016 (including a Partial Networking option). The devices include diagnostic and supervision features, supporting ECU functional safety concepts like under-voltage monitoring, window watchdog with reset, fail-safe operating mode, and fail-safe outputs.

Why use a Lite System Basis Chip?

  • Space saving: 80 percent PCB board space savings by integrating eight chips in one single VQFN package with a 7 x 7 mm footprint.
  • Energy saving: Offers intelligent power saving modes including stop and sleep mode and supports energy management enabling very low quiescent current mode.
  • High system reliability: Extensive diagnostics and protections are embedded including limp home functionality.
  • Reduced cost: Minimum number of external components reduce. Savings in BOM cost, part placing and handling, PCB board size, purchasing, and development.
  • Multiple and flexible designs: Compatible hardware and software reduce design costs and effort, enabling usage in various applications.

Lite SBC family is software and pin-to-pin compatible

The entire family is pin-to-pin and software compatible. The Mid-Range+ SBC allows scalability in terms of amount of LIN transceivers as well as flexibility for 3.3 V power supply and CAN Partial Networking option. It is also software compatible with the Lite, DC-DC, and Multi-CAN Power+ SBC families (TLE94x1 & TLE927x).

What are the key benefits of a Lite SBC?

Reduced system cost through low component count and small PCB footprint

Effective external load switch control through its integrated charge pump that can drive an external N-FET; Extends battery life with very low quiescent current modes; Enables design flexibility and reduces software design effort by the shared state machine and SPI access within the entire Lite SBC family; Meets major car OEM requirements with excellent EMC and ESD performance; Safely supply off-board loads (e.g., sensors) with short-circuit protected low-drop voltage regulators

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Highlights

ePower Graphic

Our highly integrated System-on-Chip solutions have various substantial benefits through advanced diagnosis features and minimized number of components.

Space saving: 80% PCB space saving enabled by a leaded TSDSO package with 8.65mm x 6mm footprint

Energy saving: Offers intelligent power saving modes including stop and sleep mode, and the lowest quiescent current

High system reliability: Extensive diagnostics and protections (e.g. fail-safe output, watchdog, fail-safe operating mode) are embedded within the System-on-Chip

Reduced cost: Minimum number of external components reduce BOM cost, part placing and development, purchasing, handling and PCB sizing

Multiple and flexible designs: Platform approach reduces development efforts, increase time to market and reduce design costs

The entire Lite SBC family is pin-to-pin hardware compatible. A platform approach allows faster time-to-market and flexible adaption to the application requirements. It is also software compatible with the Mid-Range+, DC-DC and Multi-CAN Power+ SBC families (TLE926x & TLE927x).

Lite_SBC_Family

LDO Variant (TLE9461): 5V/3.3V Linear Voltage Regulator up to 150mA

DCDC Variant (TLE9471): 5V/3.3V Buck converter up to 500mA

  • CAN FD up to 5Mbps (acc. to ISO 11898-2:2016), CAN PN and FD Tolerant (“-3” variants)
  • Charge Pump Output for Load Switch / Reverse Current Protection
  • 1x HV Wake input, Watchdog, Reset and Interrupt
  • 1x GPIO (Fail Output, Wake, Low-Side or High-Side Switch up to 45mA)
  • Low-Power Modes with full wake capability

  • Reduced system cost through low component count and small PCB footprint
  • Effective external load switch control through its integrated charge pump that can drive an external N-FET
  • Extends battery life with very low quiescent current modes
  • Enables design flexibility and reduces software design effort by shared state machine and SPI access within the entire Lite SBC family
  • Meets major car OEM requirements with excellent EMC and ESD performance
  • Safely supply off-board loads (e.g., sensors) with short circuit protected low-drop voltage regulators

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Training
eLearning_General_SBC

Infineon's System Basis Chip (SBC) families intelligently combine the basic functions that are needed in today’s automotive electronic control units (ECU). Get a general overview of Infineon’s System Basis Chips.

LiteSBC eLearning

Know the Lite SBC family’s main features and understand its value proposition.

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