Product brief Multi-MOSFET driver family TLE92108 8x half-bridge drivers for automotive motor control applications The TLE92108 is a family of multi-MOSFET driver ICs, designed to control up to eight Key features half-bridges (up to 16 N-Channel MOSFETs) with one packaged device. Target applications involve automotive DC motor and solenoid control, such as power seat modules, power Adaptive multi-stage MOSFET gate closure systems and many more. control 2x flexible current sense amplifiers A 24-bit Serial Parallel Interface (SPI) enables configuration of the TLE92108 and is used (high-side capable and bidirectional) to control the half-bridges. The SPI offers a wide range of diagnostic features such as the with configurable gain monitoring of the supply voltage, the charge pump voltage, temperature warning and 24-bit serial peripheral interface over-temperature shutdown. Further, each gate driver monitors its external MOSFET Integrated charge pump for reverse drain-source voltage for hard-short circuit conditions, while the devices can observe the battery protection current passing through the integrated op amps providing configurable soft-short circuit Drain-source monitoring for hard detection, in both cases providing active latching hardware protection independent of short circuit detection any software measures. Current sense monitoring for soft short circuit detection The device is housed in a VQFN-48 with exposed pad, which supports optical lead tip inspec- Overtemperature warning and tion while providing optimal thermal performance and minimizing the required PCB space. shutdown Timeout watchdog Overall, the TLE92108 series is an easier, smaller & more cost efficient way for customers Detailed off-state diagnostic to drive multiple-half-bridges in DC motor control applications. (open load, short circuit to battery or to GND) via SPI Key benefits 3x PWM inputs (up to 25 kHz) Enable cost and board space improvements the TLE92108 allows driving up to Best-in-class low current consump- 8 half-bridges with one single driver IC, providing a very cost effective solution on a tion in sleep mode system level. Having only one driver device for several half-bridges enables further AEC Q-100 qualified savings, such as less pick & place costs as well as less required PCB space compared to competing (discrete) solutions. Adaptive driver capability multi-stage slew rate control enables EMC tuning via SPI, Key applications including adjusting slew rate with independence from dead-time and turn on/off delays. The on-board measurement and self-adaption of external MOSFET switching times Automotive DC motor control, e.g.: allows balancing of power dissipation vs. EMC performance, adjusts for MOSFET lot-to- Seat module and extended functions lot variations, and makes the TLE92108 a perfect choice for many different applications. (steering column adjustment, gas Motor brake mode TLE92108-232QX is pin and software compatible to pedal adjustment) TLE92108-231QX and offers in addition a unique protection feature in sleep mode. It Closure systems (e.g. trunk opener, can be configured as a permanent motor brake to avoid unintended movement of the sliding door, sun-roof) motor. The motor brake can also be configured to be activated in case of supply over- Central door lock voltage caused by motor working in generator mode to protect the system. Body control module (cargo cover, washer pump, window lift, wiper) www.infineon.com/multi-mosfet-driver Product brief Multi-MOSFET driver family TLE92108 8x half-bridge drivers for automotive motor control applications Application diagram for TLE92108-23xQX +12 V VS TLE92108-23xQX DH 2-stage CP LIN/CAN System basis chip Logic Current sense R amplifier 1 SHUNT1 Watchdog DH VDD SPI MM M Brake mode Current control Protections DH gate drivers Diagnostics 8x HB Current sense R amplifier 2 SHUNT2 Adaptive gate control DH Microcontroller PWM M M M mapping CSA config. Shunt 2x CS amplifiers resistors Product table Product variant Current sense amplifier PWM inputs Adaptive gate control Motor brake mode Package TLE92108-231QX 2 3 VQFN-48 TLE92108-232QX 2 3 VQFN-48 Published by Please note Additional information Infineon Technologies AG This Document is for information purposes only and any For further information on technologies, our products, the 81726 Munich, Germany information given herein shall in no event be regarded as a application of our products, delivery terms and conditions warranty, guarantee or description of any functionality, and/or prices, please contact your nearest Infineon Technologies 2019 Infineon Technologies AG. conditions and/or quality of our products or any suitability for a office (www.infineon.com). All Rights Reserved. particular purpose. With regard to the technical specifications of our products, we kindly ask you to refer to the relevant product Warnings data sheets provided by us. 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