STCC2540 USB charging controller with integrated power switch Datasheet - production data Applications USB ports / hubs Personal computers, all-in-one PCs Monitors Notebooks, ultrabooks Tablet PCs VFQFPN 16L 3 x 3 x 0.8 mm Universal wall charging adapters Description Features The STCC2540 device integrates, in one package, a USB charger controller, a wide Compliant with USB charging specifications bandwidth data switch, and a high current power BC1.2, USB 2.0 and USB 3.0 standards switch. The device emulates several profiles Compliant with Chinese telecommunications compatible with the USB battery charging industry standard YD/T 1591-2009 standard, BC1.2, Chinese telecommunications standard YD/T 1591-2009, and proprietary Compatible with proprietary charging mode charger modes. (Apple 1 A / 2 A, BlackBerry , Korean tablets) Wide bandwidth, low-loss USB 2.0 data switch The device asserts the charging flag in DCP modes if the charging current is higher than the Integrated V power switch with low R of BUS ON threshold. In CDP mode, it asserts the charging 65 m flag after the CDP negotiation if the charging Constant current mode overcurrent protection current is higher than the threshold. Soft-start to limit inrush current After the current drops below the threshold, the Adjustable current limit up to 2.8 A output is deasserted, allowing the host to turn off the high power DC-DC converter and reduce Short-circuit, thermal and undervoltage overall consumption in S4/S5 states, which is protection critical when the host is battery supplied. Reverse voltage and reverse current protection Deglitched fault reporting output Supports remote wakeup in S3 Charging indication output in DCP and CDP modes Package: VFQFPN 16L 3 x 3 x 0.8 mm with exposed pad Temperature range: -40 up to 85 C UL and CB recognized components (UL file number: E354278) February 2014 DocID024711 Rev 6 1/32 This is information on a product in full production. www.st.comContents STCC2540 Contents 1 Functional description . 3 2 Pin description . 5 3 Absolute maximum ratings and operating conditions . 6 4 Electrical characteristics . 7 5 Application information . 11 5.1 Supported modes . 12 5.2 Remote wakeup in S3 . 13 5.3 V discharge 13 BUS 5.4 State machine 14 5.5 Charging detection 15 5.6 Power switch 15 Overcurrent conditions 15 Thermal protection . 15 Undervoltage lockout . 15 FAULT functionality 16 Current limit programming . 16 5.7 Enable input . 16 5.8 Input and output capacitors . 17 6 Typical operating characteristics . 18 7 Package information 28 8 Ordering information . 30 9 Revision history . 31 2/32 DocID024711 Rev 6