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Thread: Frequently asked questions

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    Infineon Employee
    Infineon Employee
    Jing.N is on a distinguished road
    Join Date
    Jun 2018

    Frequently asked questions

    1. What is TrilithIC?
      TrilithIC is a fully integrated high current H-bridge for motor drive applications. It contains two p-channel highside MOSFETs and two n-channel lowside MOSFETs with an integrated driver IC in one package, and can be used as an interface between microcontroller and Motor

    2. Which protection and diagnosis features does TrilithIC provide?
      The device provides overtemperature protection, short circuit protection, overload protection, under voltage detection and current sense feature. Please look into the datasheet to find more detailed information for the product.

    3. How to select a proper product for my application?
      The main features of TrilithIC family are summarized in the following table. Please select the product according to the application requirements (max. operation voltage/ protection features/ PWM frequency etc.). Please check the datasheets, if you need more detailed information.
      Click image for larger version

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    4. Which Typical output current level can TrilithIC support?
      The max. HS/LS continuous drain source current of BTM7752G/BTM7755G is 4 A. For applications with PWM, the max. output current highly depends on the PWM frequency and the duty cycle. But please be noticed that the max. output current is limited by the thermal performance and the current limitation level of the device. For BTM7752G and BTM7755G, the typical current limitation level is 12 A, the min. level is 8 A.

    5. Can TrilithIC be used in 24V application?
      For BTM7752G/BTM7755G, the supply voltage range for normal operation range is 8 V to 18 V. It can be extended up to 28 V. But the specs in the datasheet are specified in the range of Vs = 8 V to 18 V, and the overtemperature protection is only available up to 18 V.

    6. How is possible to use TrilithIC in Safety related application?
      The products are not developed according to ISO26262. But it is possible to make the functional safety qualification based on field data(FITs) to meet the qualification requirement of the applications on system level.

    7. How accurate is the current sense feature?
      In the datasheet of BTM7752G/BTM7755G, both current sense ratio(KILIS) and differential current sense ratio(dkILIS) are specified. Although the accuracy is not specified in the datasheet, KILIS and dkILIS can be used as a reference to implement the applications.

    8. Is it possible to use TrilithIC in PWM mode?
      PWM signal can be applied at input pins to switch MOSFETs. BTM7752G and BTM7811K can be used with a PWM signal up to 25 KHz. But please be noticed that not all products in TrilithIC family can be used with such a high speed PWM signal. For the other products please check the max. PWM frequency specified in the datasheet.

    Last edited by Jing.N; Aug 7th, 2018 at 02:38 AM.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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