Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.



Search tips
Showing 37 results View by: Thread Post Sort by

  • LM57: Example schematic for using two LM57 to provide over and under temperature on / off control to a PSU

    TI Thinks Resolved
    Part Number: LM57 Other Parts Discussed in Thread: TMP390 Tool/software: Please could you provide an example circuit using two LM57 sensors that would provide a single on / off control line to a DC/DC converter. The DC/DC should power off above +85 degC…
    • Answered

  • RE: LM57-Q1: Without RSENSE1 & RSENSE2 resistor, Can we take analog (Vtemp) output. what will the default gain?

    Resolved
    Hi Rahul, I apologize for the delay here. I have been able to test an unit in a temperature-controlled environment setup and can confirm that the device will default to the J2 gain (-5.166mV/C) when the Rsense pins are left open and no resistors are used…

  • LM57: Sensors forum

    TI Thinks Resolved
    Part Number: LM57 Please let me know the formula to calculate trip temperature from RSENSE1 & RSENSE2 values.
    • Answered

  • LM57: WSON 8 package drawing / dimensions

    Resolved
    Part Number: LM57 Hi all My customer is looking for the package drawing / package dimensions for the LM57BISD-5/NOPB (package WSON – NGR 8) This is not in the datasheet and also no dimensions for the document found at https://www.ti.com/support-packaging…
    • Resolved

  • LM57: Will the LM57 reliably recognize that it is below the programmed V_trip

    TI Thinks Resolved
    Part Number: LM57 We’re looking into using the LM57 as a temp sensor to switch off a load when the chip temp rises above -37C. We want to guarantee that the load is switched on from -55C to -37C. Our low level functional temp range is -55C; this…
    • Answered

  • LM57: LM57 ground clearance for ambient measurement

    Resolved
    Part Number: LM57 If I want to measure ambient more accurately, should I remove the ground or any plane under LM57 to limit the heat picking up from the board?
    • Resolved

  • LM57: Setting the trip point with a voltage?

    TI Thinks Resolved
    Part Number: LM57 Other Parts Discussed in Thread: TMP300 , TMP107 Customer requested an automatic temperature trip point in each of their digital modules, to force a heating of the processor when the temperature is below a set point like −35°C for instance…

  • LM57: LM57 Lower operating temperature and Thermal constant

    TI Thinks Resolved
    Part Number: LM57 Hi, We are planning to use LM57 in one our application. The application works from -55 deg C. LM57 will act as thermostatic switch in our application. Tover threshold = -35 degC. when temperature < -35 degC , Tover#(Open drain) will…

  • LM57-Q1: LM57 Rsense1 or Rsense2 short GND

    TI Thinks Resolved
    Part Number: LM57-Q1 Other Parts Discussed in Thread: LM57 Hi Team If LM57 Rsense1 or Rsense2 short to GND. What temperature will be show or What will happened

  • LM57: Input Filtering

    TI Thinks Resolved
    Part Number: LM57 A customer is experiencing glitches on the output of the LM57. The device is applied into a noisy environment and it was verified there is noise reflected on Vsense 1 & 2. Do we have any input filtering guidelines? Furthermore, does…

Didn't find what you are looking for? Post a new question.