The TPS255x power-distribution switch is intended for applications where precision current limiting is required or heavy capacitive loads and short circuits are encountered. These devices offer a programmable current-limit threshold between 500 mA and 5 A (typical) through an external resistor. The power-switch rise and fall times are controlled to minimize current surges during turnon and turnoff.
TPS255x devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold. The FAULT logic output asserts low during overcurrent and overtemperature conditions.
| Product type | Adjustable current limit, Power switch |
| Vin (min) (V) | 2.5 |
| Vin (max) (V) | 6.5 |
| Continuous current (max) (A) | 5 |
| Current limit (A) | 0.5 to 5.0 |
| Operating temperature range (°C) | -40 to 125 |
| Enable | Active Low |
| Number of switches | 1 |
| Current limit accuracy at 1 A | 7.0% (4100mA min / 4715mA max) |
| Rating | Catalog |
| VSON (DRB) | 8 | 9 mm² 3 x 3 |
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