STCC2540

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产品概述

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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.

所有功能
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_BUSpower switch with low R_ONof 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)
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