ZHCSBQ9C October 2013 – January 2021 TPS62085 , TPS62086 , TPS62087
PRODUCTION DATA
The TPS62085, TPS62086, and TPS62087 have a power good output. The power good goes high impedance once the output is above 95% of the nominal voltage, and is driven low once the output voltage falls below typically 90% of the nominal voltage. The PG pin is an open-drain output and is specified to sink up to 1 mA. The power good output requires a pullup resistor connecting to any voltage rail less than 6 V. The PG signal can be used for sequencing of multiple rails by connecting it to the EN pin of other converters. Leave the PG pin unconnected when not used. Table 8-1 shows the PG pin logic.
| DEVICE CONDITIONS | LOGIC STATUS | ||
|---|---|---|---|
| HIGH Z | LOW | ||
| Enable | EN = High, VFB ≥ VPG | √ | |
| EN = High, VFB < VPG | √ | ||
| Shutdown | EN = Low | √ | |
| Thermal Shutdown | TJ > TJSD | √ | |
| UVLO | 0.5 V < VIN < VUVLO | √ | |
| Power Supply Removal | VIN ≤ 0.5 V | √ | |