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TPS650861: IPGUI setting with 3.3V/5V output

min hu
Intellectual 990 points
Part Number: TPS650861
Other Parts Discussed in Thread: , MSP430F5529, IPG-UI

Hi,

TPS650861 can out put 3.3V/5V on BUCK1/2/6,but the maximum output value is 1.67V when using GUI tool IPGUI?

  • 0
    TI__Expert 4155 points
    Min,

    The maximum is 1.67V when using the 10mV step size. When using the 25mV step size the maximum is 3.575V. There is also an external feedback option in the OTP Generator tool that allows the output to go up to 5V using a resistor divider in the feedback network.
  • 0 in reply to Nick Jakse49
    Intellectual 990 points

    Hi,

    so I can not read the actual output voltage value from IPGUI in real time,only register values?

    and one more question:

    is it possible to program the TPS65801 OTP  directly on customer board?any guide for this option?

  • 0 in reply to min hu
    TI__Expert 4155 points
    Min,

    Yes, you would have to read the registers to see what the output voltage is set at.

    It is also possible to program the device directly on a customer board, but the board needs to be designed for it. You need to have a device that can communicate with the PMIC through I2C, and something that can apply 7V to the CTL4 pin and IRQB pin. On the BOOSTXL-TPS650861 boosterpack board there is a ribbon cable connector designed to allow customers to program a device on their board using the boosterpack. The most important design consideration in this case is to ensure that there isn't anything connected to the CTL4 or IRQB pins that can be damaged when 7V is applied while the board is off.
  • 0 in reply to Nick Jakse49
    Intellectual 990 points
    Hi,Nick
    is it possible to use a customer I2C dongle with IPGUI software? i have a C232HM cable which can be used as a USB to I2C dongle.

    if not，i need MSP430F5529 development kit and BOOSTXL-TPS650861 plug-in module to communicate with IPGUI anyway.
  • 0 in reply to min hu
    TI__Expert 4155 points
    Min,

    I don't see any way to use the I2C dongle with the IPG-UI software. If you are able to send I2C commands to the PMIC using the dongle, then you can use that to program. The OTP generator even generates a list of I2C commands to use if you aren't using the IPG-UI/boosterpack, but you won't be able to use the IPG-UI software.