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LP55231: LP55231 this internal charge pump, under what circumstances will switch to 1Xmodes

2018
Expert 2630 points
Part Number: LP55231

LP55231 this internal charge pump, under what circumstances will switch to 1Xmodes

  • 0
    TI__Genius 12915 points

    Hi 2018,

    If charge pump automatic adaptive mode is enabled, voltage on output channels would be monitored. Once the voltage do not reach enough headroom, charge pump would be switched to 1.5x. In other words, 1x /1.5x mode depend on the VCC and LED forward voltage in your application. if you leave enough margin for headroom voltage on output channels, IC would select 1x mode automatically.