SLVAFF7A december 2022 – august 2023 TPS25762-Q1 , TPS25772-Q1
TVSP pin is a multi-function pin, but for boot process, RTVSP is the resistor determining the boot behavior. At power on, the resistance between the TVSP pin and PGND determines the boot method, USB PD port I2C addresses and I2C logic thresholds. Refer to RTVSP Configuration Settings. The pin hardware connection is shown in Figure 5-1. During device initialization and boot, typically within 4 seconds after power on, VIN must be above 7.6 V to ensure proper bias of the TVSP pin to 5.5 V. Once boot is complete the device can operate over the full VIN range. Table 5-1 below are the settings of RTVSP. More details on the TVSP pin can be found in the datasheet.
RTVSP(kΩ) | TVSP Index | ADC Value | I2C Slave PortAddresses (A|B) | I2C Logic (VDD) | Boot Mode |
---|---|---|---|---|---|
Open | 0 | ≤ 10(0×0A) | 0×22|0×26 | 3.3 V | EEPROM |
93.1 | 1 | ≤ 24(0×18) | 0×23|0×27 | 3.3 V | External HUB|MCU |
47.5 | 2 | ≤ 42(0×2A) | 0×22|0×26 | 1.8 V | EEPROM |
29.4 | 3 | ≤ 63(0×3F) | 0×23|0×27 | 1.8 V | External HUB|MCU |
20.0 | 4 | ≤ 89(0×59) | 0×23|0×27 | 3.3 V | EEPROM |
14.7 | 5 | ≤ 119(0×77) | 0×22|0×26 | 3.3 V | External HUB|MCU |
11.0 | 6 | ≤ 156(0×9C) | 0×23|0×27 | 1.8 V | EEPROM |
8.45 | 7 | ≤ 201(0×C9) | 0×22|0×26 | 1.8 V | External HUB|MCU |
6.65 | 8 | ≤ 255(0×FF) | 0×22|0×26 | 3.3 V | USB Endpoint |