ZHCSD80B january 2015 – august 2023 TPS62065-Q1 , TPS62067-Q1
PRODUCTION DATA
The Power Good (PG) pin indicates whether the output voltage has reached its regulation voltage. The PG pin can be used for sequencing of other system rails. The PG pin is an open-drain output that requires a pullup resistor to any voltage up to any voltage rail lower or equal the voltage applied to AVIN pin of the device. A 100-k? pullup resistor is recommended, and this value can be adjusted as described in the Choosing an Appropriate Pulllup/Pulldown Resistor for Open Drain Outputs Application Report.
If the power-good output is not used, it is recommended to tie to GND or leave open. The PG pin can sink a maximum of 1 mA. Table 9-1 shows the typical logic states of the PG pin.
| DEVICE CONDITIONS | PG STATUS | ||
|---|---|---|---|
| HIGH IMPEDANCE | LOW | ||
| Enable | EN = High, VFB ≥ 0.57 V | √ | |
| EN = High, VFB ≤ 0.54 V | √ | ||
| Shutdown | EN = Low | √ | |
| Thermal Shutdown | TJ > TJSD | √ | |
| UVLO | VIN < VUVLO | undefined | |