Comments by Claire

  • New 5V step-up/step-down voltage regulator S9V11F5

    New 5V step-up/step-down voltage regulator S9V11F5

    - 15 February 2018

    Hi, Tom.

    We have not characterized the ripple or line regulation for these regulators, but both will depend on the exact details of your system, so if you wanted to be sure they would hold a steady enough 5V for your sensor boards, you would probably have to test them in your setup. If you want the cleanest supply, you might consider boosting from your 5V bus to 5.5V or 6V and then regulating linearly from there. If you have more questions or would like more advice on how these regulators might behave in your setup, I recommend posting more details about it on our forum.

    -Claire

  • New D24V150Fx 15A step-down voltage regulator family — our highest-power regulators yet!

    New D24V150Fx 15A step-down voltage regulator family — our highest-power regulators yet!

    - 14 February 2018

    Hi.

    We have not characterized these regulators with heatsinks, but you could try adding one to see how much improvement you would get. It would probably be most effective on the silkscreen side of the board above the two large FETs. Additionally, we have generally found forced airflow to be more effective than a heatsink alone. For fun one of our engineers designed a fan enclosure for these regulators and in some brief tests was able to get several extra amps out. If you have access to a 3D printer and want to try it out, you can download it from Thingiverse. If you do try that enclosure or heatsinking, we would be interested to hear how it goes.

    -Claire

  • New MOSFET-based power switches

    New MOSFET-based power switches

    - 30 January 2018

    There is only a direct connection between the CTRL pin and ground when the transistor connected to the OFF pin is turned on, and we warn on the switch's product page never to have both pins high at the same time. From your description of your capacitive switch it sounds like it would probably be more straight forward to just use it to directly control a MOSFET that can handle the current draw of your load. Could you provide more information about the touch switch?

    -Claire

  • New MOSFET-based power switches

    New MOSFET-based power switches

    - 29 January 2018

    Hi.

    You can supply up to the rated maximum VIN voltage directly to the CTRL pin on our pushbutton power switches (20V for the LV and 40V for the SV, MP, and HP) as long as you do not exceed the voltage you are supplying to VIN. Is your supply at least 12V? By the way, if you have not already noticed, the internal structure of the control pins on the switch is given in the "Using the Pushbutton Power Switch" section of the product page.

    -Claire

  • New product: G2 High-Power Motor Driver 24v13

    New product: G2 High-Power Motor Driver 24v13

    - 18 September 2017

    Sorry, we do not release that.

    -Claire

  • New product: G2 High-Power Motor Driver 24v13

    New product: G2 High-Power Motor Driver 24v13

    - 15 September 2017

    Hi, Nils J.

    We do not release the schematic for that driver. Is there some other specific information about the driver you are looking for?

    -Claire

  • New Product: 5V, 5A Step-Down Voltage Regulator D24V50F5

    New Product: 5V, 5A Step-Down Voltage Regulator D24V50F5

    - 11 September 2017

    Hi, Brewster.

    It is generally bad practice to directly connect two voltage sources, so you should implement something to isolate your 12-15V rail from the output of the regulator. Appropriately rated diodes could work for that. Even when the regulator is off, it is not good practice to connect another voltage to the output, and you should definitely not connect more than 5V.

    -Claire

  • New 5V step-up/step-down voltage regulator S9V11F5

    New 5V step-up/step-down voltage regulator S9V11F5

    - 30 August 2017

    Hi, Moby.

    We do not disclose what IC is used on this regulator. We will be releasing an adjustable version soon, though stock will initially be limited because of component shortages. Please contact us directly with the details of your requirements (output voltage, quantity you need, when you need them, etc.), and we might be able to get you something sooner than the regular release.

    -Claire

  • New products: G2 High-Power Motor Driver 18v25 and 24v21 (and price drops for other G2 drivers)

    New products: G2 High-Power Motor Driver 18v25 and 24v21 (and price drops for other G2 drivers)

    - 15 August 2017

    Hi, Tech.

    In our tests the G2 High-Power Motor Driver 24v21 was able to handle 21A continuously. Those tests were done in open air at room temperature, so you might see a decrease in performance if your driver is enclosed or in a hot environment. We do not expect varied input voltages to have a significant impact on the continuous current the driver can handle. We did not test the driver with heatsinks, but adding a heatsink would probably slightly improve the amount of current it can handle.

    -Claire

  • Video: Setting the Current Limit on Pololu Stepper Motor Driver Carriers

    Video: Setting the Current Limit on Pololu Stepper Motor Driver Carriers

    - 31 July 2017

    Hi, Chris.

    The product pages for our stepper motor driver carriers cover most of the same information that is in the video on setting the current limit. What specific information do you think is missing from the product pages?

    -Claire

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