The STCC2540 device integrates, in one package, a USB charger controller, a wide bandwidth data switch, and a high current power switch. The device emulates several profiles compatible with the USB battery charging standard, BC1.2, Chinese telecommunications standard YD/T 1591-2009, and proprietary charger modes.
The device asserts the charging flag in DCP modes if the charging current is higher than the threshold. In CDP mode, it asserts the charging flag after the CDP negotiation if the charging current is higher than the threshold.
After the current drops below the threshold, the output is deasserted, allowing the host to turn off the high power DC-DC converter and reduce overall consumption in S4/S5 states, which is critical when the host is battery supplied.
Compliant with USB charging specifications BC1.2, USB 2.0 and USB 3.0 standards
Compliant with Chinese telecommunications industry standard YD/T 1591-2009
Compatible with proprietary charging mode (Apple®1 A / 2 A, BlackBerry®, Korean tablets)
Wide bandwidth, low-loss USB 2.0 data switch
Integrated VBUSpower switch with low RONof 65 mΩ
Constant current mode overcurrent protection
Soft-start to limit inrush current
Adjustable current limit up to 2.8 A
Short-circuit, thermal and undervoltage protection
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)