SLVSDF3F MARCH 2017 – JANUARY 2019 TPSM846C23
The CNTL signal is an input signal on the PMBus. It is used to turn the power conversion function of the module on and off in conjunction with commands received over the bus. It can be configured as an active high or active low signal through the ON_OFF_CONFIG command. The CNTL signal is programmed at the factory to be an active high signal; that is, the CNTL pin must be pulled high for power conversion to occur. The CNTL pin requires an external pullup resistor for a high signal. A 10-kΩ pullup resistor is placed between the CNTL pin and the BP3 rail.