STCC2540 Datasheet, PDF (1/32 Pages) STMicroelectronics – USB charging controller with integrated power switch

STCC2540
USB charging controller with integrated power switch
VFQFPN 16L 3 x 3 x 0.8 mm
Features
• 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 V_BUS power switch with low R_ON of
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)
Datasheet - production data
Applications
• USB ports / hubs
• Personal computers, all-in-one PCs
• Monitors
• Notebooks, ultrabooks
• Tablet PCs
• Universal wall charging adapters
Description
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.
February 2014
This is information on a product in full production.
DocID024711 Rev 6
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