BD2240G and BD2241G are low on-resistance N-channel MOSFET high-side power switches, optimized for Universal Serial Bus (USB) applications. BD2240G and BD2241G are equipped with the function of over-current detection, thermal shutdown, under-voltage lockout and soft-start.
The BD2240G and BD2241G are low on‑resistance N‑channel MOSFET high‑side power switches optimized for USB and other digital consumer applications. They provide over‑current detection, thermal shutdown, under‑voltage lockout, soft‑start and reverse‑current protection.
Key features include a typical on‑resistance of 110 mΩ, input voltage range of 2.7 V–5.5 V, over‑current threshold as low as 820 mA, and built‑in fault‑flag output. The devices are supplied in a 5‑lead SSOP package and are intended for use in PCs, audio‑visual equipment, office‑automation and other general‑purpose electronic devices.
| Typical on‑resistance (Ron) | 110 mΩ |
|---|---|
| Input voltage range | 2.7 V ~ 5.5 V |
| Over‑current detection threshold (typical) | 820 mA |
| Standby current (typical) | 0.01 µA |
| Operating temperature range | -40 °C ~ 85 °C |
EN is a high‑level input that turns on the switch for the BD2240G, while /EN is a low‑level input that turns on the switch for the BD2241G.
The IC includes reverse current protection when the power switch is off, preventing current flow from VOUT back to VIN.