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TPS22810: Power Load Switch request

BJ Han
Expert 2035 points
Part Number: TPS22810
Other Parts Discussed in Thread: TPS22953, TPS2121

Dear TI,

The desired specification is as follows.
- Input voltage: About 9V
- Allowable current: 3A
- OTG function available
- ON / OFF function (High enable)
 => TPS22810DRVR : It's satisfied with all specifications except OTG.
Is there any product that can support OTG?

  • 0
    TI__Genius 10855 points

    Hi BJ Han, 

    Thanks for reaching out on E2E!

    Unfortunately, we don't have any load switches in our portfolio with OTG capabilities. We usually don't see this requirement from a load switch perspective. Could you comment more on the OTG requirement?? If I take a closer look at the application, I might be able to provide a solution.

    Thanks,

    Arthur Huang

    To find the latest information on Power Switches, visit www.ti.com/powerswitch

    Please click "This resolved my issue" button if this post answers your question.

  • 0 in reply to Alpha H
    Expert 2035 points

    Dear Arthur,

    Thanks for your quick reply.
    First, we want to use the following features.

    When the power source is input to the Micro-USB Connector (4 ~ 9V), this power is used to charge and so on.
    In certain situations, it must be able to block the power source input.
    Also, if a device that requires power supply such as a memory stick is connected, 5V should be output to the Micro-USB Connector.

    For reference, if you can not find the parts that have the above functions, I would like to implement them as attached.

    USB_VBUS.pdf

  • 0 in reply to BJ Han
    TI__Genius 10855 points

    Hi BJ Han, 

    Would the TPS22953 work in this situation. The device can act as a bidirectional load switch, allowing current to flow in either direction when enabled. When the device is disabled, the device will block reverse current in both directions. 

    We also have the TPS2121 if you're looking for a more traditional power mux. However, this device doesn't have OTG so you would need to add an external switch at the output for OTG charging.

    Thanks,

    Arthur Huang

  • 0 in reply to Alpha H
    Expert 2035 points
    Dear Arthur,

    Thank you for your update.

    Thank you.