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TPS546B24A: 7.5.2.3 Programming VSEL

Allen yang
Intellectual 320 points
Part Number: TPS546B24A

Hi 

VSEL resistor 23.7K to BP1V5 and 12.1K to AGND

Boost voltage range?

Offset voltage?

Thank

  • 0
    TI__Mastermind 48240 points

     

    On Table 7-17, you can look up the resistor codes for a 12.1k Resistor to Ground and 23.7k to BP1V5

    This is

    Resistor to Ground Code 5

    Resistor Divider Code 3

    Divider Code 3

    This sets

    VOUT_SCALE_LOOP = 0.5V

    VOUT_MIN = 0.5V

    VOUT_MAX 1.5.

    VOUT_COMMAND_offset = 1.05

    VOUT_COMMAND_step = 0.01

    Resistor to Ground Code 5

    This sets VOUT_COMMAND to Offset + 5 x Step = 1.05 + 5 x 0.01 = 1.1V