The R5520H series are CMOS-based USB high side switch IC. R5520H is a protection IC used in power line of USB with built-in current limit circuit, thermal shutdown circuit, and under-voltage lockout circuit (UVLO). R5520H contains an internal delay circuit to prevent output of flag signal of false detection caused by inrush current.
The R5520H Series are CMOS-based USB high-side switch ICs designed for use in the power line of USB. The R5520H includes protection features such as a built-in current limit circuit, thermal shutdown circuit, and under-voltage lockout circuit (UVLO). It also contains an internal delay circuit to prevent false detection of flag signals caused by inrush current.
The device is available in an SOT-89-5 package and is intended for use in general electronic components in standard applications, including personal computers, video cameras, printers, office automation equipment, TVs, and audio equipment.
| Supply Current (Enabled) | Typ. 20µA |
|---|---|
| Short Current Limit | Typ. 750mA |
| Supply Current (Disabled) | Typ. 0.54µA |
| Over Current Flag Delay | Typ. 10ms |
| Input Voltage Range | 4.0V to 5.5V |
| Switch ON Resistance | Typ. 100mΩ |
| Thermal Shutdown Temperature | Stops at 135°C |
| UVLO Detect Voltage | Typ. 2.2V |
| Current Limit Threshold | Typ. 1.2A |
| Package Type | SOT-89-5 |
The R5520H includes a built-in current limit circuit, thermal shutdown circuit, and under-voltage lockout circuit (UVLO).
The typical supply current when enabled is 20µA.
The typical switch ON resistance is 100mΩ when Vin=5V and Iour=500mA.