BD6524HFV is a low on resistance switch IC from ROHM with low input voltage (VIN ≥ 3.0V) operation and a built-in soft start circuit, making it suitable for a wide range of switch applications.
The BD6524HFV is a high‑side power switch IC with an N‑channel MOSFET, designed for memory‑card slots and other portable equipment. It offers a low on‑resistance, soft‑start, UV‑lockout and a built‑in discharge circuit to manage inrush current and prevent reverse current flow.
Key features include a typical 200 mΩ on‑resistance, 500 mA maximum output current, operation from 2.3 V input, and a space‑saving HVSOF6 package. The note provides electrical characteristics, pin descriptions, typical application circuits and design recommendations for reliable integration.
| On‑resistance (RON) | 200 mΩ (Typ.) |
|---|---|
| Maximum output current | 500 mA |
| Supply voltage (Vin) | -0.3 V to 6.0 V |
| Control input voltage (Ven) | -0.3 V to Vin+0.3 V |
| Storage temperature | -55 °C to 150 °C |
| Power dissipation (Pd) | 510 mW |
| UVLO threshold voltage | 2.2 V (Typ.) |
| Discharge resistance | 200 Ω – 350 Ω |
| Switch rise time (Ton) | 0.4 ms – 0.8 ms |
The typical on‑resistance is 200 mΩ.
It can supply up to 500 mA of output current.
There is no parasitic diode between drain and source, so reverse current flow is blocked when the switch is off.
The UVLO circuit activates when VIN exceeds 2.2 V (typical).