PI5USB2546A USB Charging Controller

By Diodes Incorporated 51

PI5USB2546A USB Charging Controller

Pericom Semiconductor’s PI5USB2544A/2546A series is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/D-) switch. PI5USB2544A/2546A provides the electrical signatures on D+/D- to support charging schemes listed under the device feature section. This series is compatible with both popular BC1.2 compliant and non-BC1.2 compliant devices. System wake up (from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the PI5USB2544A/2546A. Additionally, PI5USB2546A supports two distinct power management features, namely, power wake and port power management (PPM) through /STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM manages port power in a multiport application. The PI5USB2544A/2546A series 73 mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds.

Features
  • Two separate current limiting channels
  • Supports CDP/DCP modes per USB battery charging specification 1.2
  • Supports shorted mode per Chinese Telecommunication Industry Standard YD/T 1591-2009
  • Supports non-BC1.2 charging modes by automatic selection
  • Divider-1A mode
  • Divider-2A mode
  • Divider-2.4A mode
  • DCP-1.2V mode
  • Supports sleep-mode charging and mouse/keyboard wake up
  • Automatic SDP/CDP switching for devices that do not request for the CDP ports
  • Load detection for power supply control in S4/S5 charging and port power management in all charge modes
  • Integrated 73 mΩ (typ.) high-side MOSFET
  • Adjustable current-limit up to 3 A (typ)
  • Operating range: 4.5 V to 5.5 V
  • Max device current
  • 2 μA at device disabled
  • 270 μA at device enabled
  • Device package: TQFN 3x3-16L
  • Compatible with USB 2.0/3.0 power switch requirements
Applications
  • USB ports (host and hubs)
  • Notebook and desktop PCs
  • Universal wall charging adapters

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