The TPS2045A through TPS2048A and TPS2055A through TPS2058A power-distribution switches are intended for applications where heavy capacitive loads and short circuits are likely to be encountered. These devices incorporate 80-mΩ N-channel MOSFET high-side power switches for power-distribution systems.
The TPS2045A‑TPS2058A family are current‑limited, high‑side MOSFET power‑distribution switches intended for applications with heavy capacitive loads and possible short‑circuit conditions. Each switch includes an independent enable input, charge pump, and protection circuitry.
Key features include 250‑mΩ on‑state resistance, 250 mA continuous current per channel, operation from 2.7 V to 5.5 V, built‑in overcurrent and thermal protection, and low standby current. The document provides detailed pin descriptions, functional block diagrams, and package dimensions.
| Continuous current per channel | 250 mA |
|---|---|
| Operating voltage range | 2.7 V to 5.5 V |
| Typical rise time | 2.5 ms |
| Ambient temperature range | 0 °C to 85 °C |
Each switch can handle up to 250 mA continuous current per channel.
The device operates from 2.7 V up to 5.5 V.
The driver’s rise time is typically between 2 ms and 4 ms.