The TPS2041 and TPS2051 power distribution switches are designed for applications where heavy capacitive loads and short circuits are likely to be encountered. The TPS2041 and the TPS2051 are 135-mΩ N-channel MOSFET high-side power switches. Each switch is controlled by a logic enable compatible with 5-V and 3-V logic. Gate drive is provided by an internal charge pump that controls the power-switch rise times and fall times to minimize current surges during switching. The charge pump requires no external components and allows operation from supplies as low as 2.7 V. When the output load exceeds the current-limit threshold or a short is present, the TPS2041 and TPS2051 limit the output current to a safe level by switching into a constant-current mode, pulling the overcurrent (OC) logic output low. When continuous heavy overloads and short circuits occur, the TPS2041 and TPS2051 automatically disconnect the load power, protecting the system.
The TPS2041 and TPS2051 are 135‑mΩ N‑channel MOSFET high‑side power‑distribution switches designed for applications with heavy capacitive loads and possible short circuits. Each device includes an internal charge pump, over‑current and thermal protection, and a logic‑level enable input compatible with 3‑V and 5‑V logic.
The switches are offered in 8‑pin SOIC and PDIP packages, operate over an ambient temperature range of –40 °C to 85 °C, and support input voltages from 2.7 V to 5.5 V. Electrical specifications such as on‑state resistance, continuous current rating, and protection thresholds are provided in the datasheet.
| Enable input logic level (TPS2041) | Active low enables power switch |
|---|---|
| Ambient temperature range | -40 °C to 85 °C |
| Package types | 8‑pin SOIC and 8‑pin PDIP |
They are power‑distribution switches intended for applications where heavy capacitive loads and short circuits are likely to be encountered.
When an over‑current or over‑temperature condition occurs, the device switches to a constant‑current mode and asserts an active‑low OC output.