Littelfuse LS05006VPQ33

The LS05006VPQ33 is a protection device that helps prevent damage to electronic products with USB Type-C ports. It protects against short circuits, overvoltage up to 24 V, and electrostatic discharge (ESD). Many USB Type-C products don’t meet the Type-C specification, and some adapters that only provide 20 V to V_BUS can cause short circuits due to pin issues, twisting, or moisture. Proper overvoltage protection helps avoid damage to the low -voltage silicon circuits in Type-C controllers. LS05006VPQ33 safeguards the downstream low -voltage circuits against overvoltage and IEC61000-4-2 ESD strike.

The LS05006VPQ33 has a CC pin pull-down resistor that helps power up and charge mobile devices with dead batteries. Once the system power is up, the device automatically cuts out the CC pin pull-down resistor, allowing the Type-C controller’s CC pin pulldown resistor to take over without confusing the power source.

The LS05006VPQ33 is a protection solution for USB Type-C ports. It prevents short circuits and electrostatic discharge (ESD) from damaging devices connected to the port. CC and SBU pins are near the VBUS pins in a Type-C connector, which can create a risk of short circuits. These pins must be 24 V tolerant to protect the devices, even if their operating voltage is lower. LS05006VPQ33 provides 24 V short-to-VBUS overvoltage protection for the Type-C port’s CC1, CC2, SBU1, and SBU2 pins. It also offers IEC 61000-4-2 ESD protection for the CC1I, CC2I, SBU1I, and SBU2I pins.

The system has no power in a dead battery condition, and VPWR is unavailable. If LS05006VPQ33 is unpowered, the integrated CC pin pull-down resistor will activate, and the pull-up resistor will connect from a power adapter, allowing V_BUS voltage. When power is restored, LS05006VPQ33 conducts CC and SBU FETs to establish a handshake with the PD power source, then releases the dead battery resistor in several milliseconds to ensure the CC line pull-down resistor is 5.1 kΩ. Otherwise, the power adapter may interpret this behavior as a port disconnect and remove the V_BUS voltage.

• Automatically processes signals and works transparently without interference or burdening Type-C controller operation.
• Overvoltage protection for four-channels (CCxI, SBUxI) with 24 V tolerant switch and IEC 61000-4-2 ESD protection.
• Up to 600 mA high current capability for CC1/CC2 overvoltage protection FETs to pass V_CONN power.
• Include integrated CC1/CC2 pull-down resistors to handle mobile device’s dead battery conditions.
• Designed in a compact package QFN3x3_20L