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USB Charging Port Power Switch and Controller

  • Meets Battery Charging Specification BC1.2 for DCP and CDP
  • Meets Chinese Telecommunications Industry Standard YD/T 1591-2009
  • Support Non-BC1.2 Charging Mode by Automatic Detection :
- Divider 1, 2 Supports Most Available Apple Device
- 1.2V Mode Pull High Supports Samsung device
- Automatic SDP/CDP Swapping for BC1.2 noncompatible Devices That do not Recognize CDP Ports
  • Supports Sleep Mode Charging and LS & HS HID (Mouse/Keyboard) Wake Up
  • Load Detection for both Power Supply Control in S4/S5 Charging and Port Power Management in all Charge Modes
  • 62mΩ Power Switch Meets USB2.0 & USB3.0 Power Switch Requirement
  • VIN Operating Range : 4.5 ~ 5.5V
  • Low Quiescent Current :
- <240µA When Device Enabled
- <2µA When Device Disabled
  • High Bandwidth Data Switch Supports USB 2.0
  • Adjustable Current Limit Up to 3.0A (typical)
  • Output Discharge
  • UL Approved-File No.E328191
  • UL-CB Scheme IEC/EN62368-1 Certified
  • TUV IEC/EN62368-1 Certified
  • Lead Free and Green Devices (RoHS Compliant)

General Description
The APL3524 is an USB charging port controller which integrates USB 2.0 high-speed data line (D+/D-) switches and a power switch. The charging schemes comply with battery charging BC1.2 and Chinese Telecommunications Industry Standard YD/T 1591-2009. The APL3524 also implements some dedicated charging schemes to support non-BC1.2 compatible device, such as divider1, divider2 mode or 1.2V shorted mode. The APL3524 features power wake and port power management (PPM) via STATUS pin in supporting power management. Power wake allows for power supply control in S4/S5 charging and PPM the ability to manage port power in a multi-port application. Furthermore, the APL3524 supports mouse/keyboard wake up from S3. The 62mΩ power switch with current limit and short circuit protections supports load current up to 2.5A. Two current limit thresholds set by two programming pin provide flexibility in current limit and load detection settings.

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