The R5520H series USB high-side power switch is a CMOS-based high-side MOSFET switch IC for Universal Serial Bus (USB) applications. Low ON Resistance (Typ.100mΩ) and low supply current (Typ.20μA at active mode) are realized in this IC. An over-current limit circuit, thermal shutdown circuit, and an under voltage lockout circuit are built-in as protection circuits. Further, a delay circuit for flag signal after detecting over-current, is embedded to prevent miss-operation of error flag because of inrush current. The R5520H is ideal for applications of protection for USB power supply.
The Ricoh R5520H is a CMOS-based high-side MOSFET switch IC designed for Universal Serial Bus (USB) applications. It features a low ON resistance of typically 100mΩ and low supply current of typically 20µA in active mode. The device includes built-in protection circuits such as over-current limit, thermal shutdown, and under-voltage lockout (UVLO), along with a delay circuit for the flag signal to prevent misoperation due to inrush current.
| Switch ON Resistance (Typ.) | 100mΩ |
|---|---|
| Supply Current (Active Mode) | Typ. 20µA |
| Output Current | Min. 500mA |
| Flag Delay Time (Typ.) | 10ms |
| Operating Temperature Range | -40 to 85 °C |
| Package Type | SOT-89-5 |
| Input Voltage (Vin) | 4.0 to 5.5 V |
The typical supply current in active mode is 20µA.
The typical switch ON resistance is 100mΩ.
The operating temperature range is from -40 to 85 °C.