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  • DRV8145-Q1: Possibility to use as a Peltier Driver

    TI Thinks Resolved
    Part Number: DRV8145-Q1 Other Parts Discussed in Thread: DRV8706-Q1 Hello, I am looking into options to fully drive this Peltier element rated at 128.7W, 13.1A, 15.7V (link: https://de.rs-online.com/web/p/peltiermodule/4901402 ). Is is possible to use this…

  • DRV8145-Q1: IPROP 20kHz PWM current waveform

    Part Number: DRV8145-Q1 We are using 20kHz PWM with the DRV8145. They need to see how the triangle current waveform would look with the DRV8145 operating at a 20kHz PWM. They want to make sure that they are catching the peaks and not bandwidth limited…
    • Answered

  • Solenoid control board and current adjustment without microcontroller

    Resolved
    Other Parts Discussed in Thread: DRV8144-Q1 , DRV8145-Q1 Hi everyone, I need help about a design to control a selenoid (half-bridge) but the critical point is the junction temperature; -40 to 170ºc.I was looking at DRV8144-Q1 but it works until 125 ºC…
    • Resolved
    • Answered

  • RE: DRV8873H-Q1EVM: LC filter for driving Peltier element

    Resolved
    Hi Thai, Let me jump in this discussion since Ryan is OoO this week. How long 13.1A current is flowing? If it is ~0.1sec range, DRV8245-Q1(full bridge) should be good one. If it is ~10sec range, DRV8145-Q1(Half bridge)x 2pcs could be solution. We have…

  • DRV8705-Q1: Current output 20kHz PWM current waveform

    Part Number: DRV8705-Q1 Other Parts Discussed in Thread: DRV8145-Q1 Using DRV8705-Q1 with current monitoring at the higher end of the gain range. Need a current waveform when operating the DRV8705-Q1 at 20kHz to make sure that we are catching the peak…

  • RE: DRV8245-Q1: the cooling solution of locked rotor current.

    The requirement for 30A, 500ms is proposed for locked rotor current. They need to leave some margin. So they hope that t he requirement for Driving current 40A , 400ms is acceptable for DRV8145-Q1. And we need to confirm with you if DRV8145-Q1 can stand 40A…
    • Answered

  • [FAQ] DRV8143/44/45-Q1. 20-40us nSleep pulse input requirement for H-Variant

    Resolved
    Other Parts Discussed in Thread: DRV8143-Q1 , DRV8145-Q1 , DRV8144-Q1 DRV8143-Q1, DRV8144-Q1, DRV8145-Q1 has H-Variant. In H-Variant(HW interface), nSLEEP pin requires external pulse input. It should be 20us-40us pulse to wake the parts. 20us-40us is MUST…
    • Resolved

  • RE: DRV8144-Q1: DRV8144-Q1 - Slew rate / Rth JA

    Hi, Thank you for your questions. I recommend to use thermal estimator on TI.com for this activity. It includes worst case assumption including slew rate and Rdson. www.ti.com/.../DRV8145-Q1 Then chose worst case. We do not have SPEC for min/max slew…

  • RE: Power dissipation calculation of H-Bridge

    Hi, Thank you for your feedback. regarding No 1, total duration could be more important than number of pulses. If 15.9A peak sinewave period is less than 180ms, looks OK with Ta=85C. However under Ta=105C condition, looks marginal with DRV8144-Q1. It…

  • DRV8718-Q1: The comparison between integrated H-bridge and pre-driver

    TI Thinks Resolved
    Part Number: DRV8718-Q1 Other Parts Discussed in Thread: DRV8145-Q1 , DRV8705-Q1 Hello team, About the integrated H-bridge and pre-driver(without MOS), in addition to the current ability, I want to know the comparison between integrated H-bridge and pre…

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