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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN3989 USB/Charger Detection Device with Load Switch February 2011 FAN3989 USB/Charger Detection Device with Load Switch Features Description The FAN3989 is a USB connection monitoring device Charger/USB Detection Device with Load Switch used to determine if a standard USB device is Charger/USB Device Detection Flag connected or a battery-charging device is connected. Over/Under-Voltage Detection Flag The FAN3989 sets the FLAG1 pin to logic HIGH or LOW as an indicator to the system controller that a standard Load Switch Output, Up to 1.5A Charge Current USB device or a charger is connected to the USB port. V Supply: 2.7V to 20V BUS The FAN3989 also monitors the V for over- or under- BUS voltage conditions. The FLAG2 pin is set LOW if V is BUS C : 1.5pF ON less than 3.3V or greater than 6.0V. The internal load Package: 8-Lead MLP switch control pin is set HIGH if V is less than 3.3V or BUS greater than 6.0V, turning off the PMOS switch. Applications The FAN3989 is available in a very small 8-lead MLP package suitable for small board space applications, like Mobile Phones mobile phones. Handheld Devices Related Resources AN-5067 PCB Land Pattern Design and Surface Mount Guidelines for MLP Packages Ordering Information Operating Packing Part Number Package Quantity Temperature Range Method FAN3989MLP8X -40C to +85C 8-Lead Molded Leadless Package (MLP) Reel 3000 V OUT LS CTRL V BUS Comparator FLAG 2 OVP Logic UVP Std USB/ D- Charger D+ Logic FLAG 1 Detect GND Figure 1. Block Diagram 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN3989 Rev. 1.0.8