FP6861C-I2AS5CTR

FP6861C is a cost-effective, low-voltage single N-channel MOSFET high-side power switch optimized for self-powered and bus-powered USB applications. The FP6861C incorporates a charge pump circuit to drive the internal MOSFET switch. The switch's low RDS(ON) meets USB voltage drop requirements, and a flag output signals fault conditions to the local USB controller. Additional features include soft-start to limit inrush current during insertion, thermal shutdown to prevent catastrophic switch failure under high-current loads, and UVLO to ensure the device turns on only when a valid input voltage is present. Furthermore, in accordance with USB power requirements, the fault current of the single-port FP6861C is limited to a specified current range. When the FP6861C is disabled and the output voltage (VOUT) exceeds the input voltage (VIN), it prevents reverse current flow. The FP6861C is available in MSOP-8, SOP-8, and SOT-23-5 packages for a compact footprint.

Applications

• USB bus/self-powered hub
• USB peripherals
• ACPI power distribution
• Laptops, motherboards
• Battery charger circuits

Key features

• USB specification compliant
• Built-in low RDS(ON) N-channel MOSFET
• Output can be forced above input in shutdown state
• Low supply current: typical 55μA with switch on, typical 0.1μA with switch off
• Wide input voltage range: 2.7V to 5.5V
• Open-drain fault flag output
• Hot-plug applications (soft-start)
• Typical UVLO voltage: 2.2V
• Current limiting protection
• Thermal shutdown protection
• Reverse current blocking (no body diode)
• Logic-level enable pin
• MSOP-8, SOP-8, and SOT-23-5 packages
• RoHS compliant
• UL file number E322418 (approved models: FP6861 series)
• CB test certified, reference certification number JPTUV-101402