The BD2061AFJ and BD2065AFJ are single channel high side switch ICs used for the bus power line of the USB port. These ICs realize low on resistance and low supply current N-channel power MOSFET, and built-in over current detection, thermal shutdown, under voltage lockout and soft start circuits.
The BD2065AFJ is a single‑channel high‑side switch IC designed for USB power‑supply lines. It integrates over‑current protection, thermal shutdown, under‑voltage lockout, soft‑start, and an open‑drain error‑flag output, making it suitable for USB hubs, car accessories, and PC peripherals.
Key specifications include an input voltage range of 2.7 V to 5.5 V, typical ON‑resistance of 80 mΩ, continuous current load of 1 A, and standby current of 0.01 pA. The device features active‑high enable logic, soft‑start circuitry, and a reverse‑current protection feature. Detailed pin configurations, absolute maximum ratings, and typical performance curves are provided, along with mounting and handling precautions.
| Input voltage range | 2.7 V to 5.5 V |
|---|---|
| ON resistance (typical) | 80 mΩ |
| Over‑current threshold | 1.1 A min., 2.3 A max. |
| Standby current | 0.01 pA typ. |
| Continuous current load | 1.0 A |
| Operating temperature range | -40 °C to +85 °C |
The device operates with an input voltage from 2.7 V to 5.5 V.
Its typical ON resistance is 80 mΩ.
It protects against over‑current with a threshold of 1.1 A minimum and 2.3 A maximum.