ZHCSNR7A March 2022 – August 2022 TPS55289
PRODUCTION DATA
When the input voltage is above the UVLO threshold and the voltage at the EN/UVLO pin is above the enable UVLO threshold, the TPS55289 is ready to accept the command from the I2C controller device. An I2C controller device can configure the internal registers of the TPS55289 before setting the OE bit of the register 06h. Once an I2C controller device sets the OE bit to 1, the TPS55289 starts to ramp up the output voltage by ramping an internal reference voltage from 0 V to a voltage set in the internal registers 00h and 01h within 3.6 ms (typical).