TLE9278BQX TLE9278BQX - highest level of integration at smallest footprint for all automotive applications requiring multiple channels of CAN transceivers.

Overview

A high-efficient switch mode power supply (SMPS) buck regulator provides an external 5.0 V output voltage at up to 750 mA, while an additional DC/DC boost converter supports applications or conditions at low input supply voltages. The device is controlled and monitored via a 16-bit serial peripheral interface (SPI). Additional features include a time-out/window watchdog circuit with reset, fail output and undervoltage reset. The device offers low-power modes in order to support applications that are connected permanently to the battery. A wake-up from the low-power mode is possible via LIN/CAN bus, via the bi-level sensitive monitoring/wake-up input as well as via the timer. The TLE9278BQX is offered in a very small footprint, exposed pad PG-VQFN-48 (7 x 7 mm2) power package.

Summary of Features

  • SMPS with integrated switches supplying up to 750 mA (DC/DC buck) with 5.0 V output voltage
  • DC/DC boost converter for low supply voltage with integrated switch at 6.7 V, 8 V, 10 V and 12 V
  • Low dropout voltage regulator with external PNP device with configurable output voltages of 5.0 V, 3.3 V, 1.8 V and 1.2 V, protected for off-board usage
  • Very low quiescent current consumption in Stop and Sleep mode
  • Dedicated pin for I/O voltage supply selection
  • Four CAN transceivers compliant to CAN flexible data-rate (FD) ISO 11898-2: 2016 standard up to 5 Mbit/s
  • One universal high voltage wake input for voltage level monitoring including wake-up capability
  • Cyclic wake feature via an integrated timer
  • Reset output to ensure stable supply to the MCU
  • Fail output to activate external load in case of detected system malfunctions
  • Output voltage supervision functions in all output supply voltages
  • Fast battery voltage monitoring feature
  • 16-bit serial peripheral interface (SPI)
  • Overtemperature and short-circuit protection feature
  • Wide input voltage and temperature range
  • Software compatibility with other SBC family members of the TLE926x and TLE927x families
  • Green product (RoHS compliant) & AEC qualified
  • 7 x 7 mm2 PG-VQFN-48 package

Potential Applications

  • Gateways
  • Body control modules
  • Driver assistance
  • Chassis control
Family Table

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