SLVS931B November 2009 – December 2016 TPS2556 , TPS2557
PRODUCTION DATA.
| PIN | I/O | DESCRIPTION | ||
|---|---|---|---|---|
| NAME | TPS2556 | TPS2557 | ||
| EN | 4 | — | I | Enable input: Logic low turns on power switch. Applicable to the TPS2556. |
| EN | — | 4 | I | Enable input: Logic high turns on power switch. Applicable to the TPS2557. |
| FAULT | 8 | 8 | O | Active-low open-drain output: Asserted during overcurrent or overtemperature conditions. |
| GND | 1 | 1 | — | Ground connection: Connect externally to PowerPAD. |
| ILIM | 5 | 5 | O | External resistor used to set current-limit threshold. TI recommends 20 kΩ ≤ RILIM ≤ 187 kΩ. |
| IN | 2, 3 | 2, 3 | I | Input voltage: Connect a 0.1-µF or greater ceramic capacitor from IN to GND as close to the IC as possible. |
| OUT | 6, 7 | 6, 7 | O | Power-switch output. |
| PowerPAD™ | PowerPAD | PowerPAD | — | Internally connected to GND. Used to heat-sink the part to the circuit board traces. Connect PowerPAD to GND pin externally. |