Diodes/Pericom – PI5USB2546A – New USB Charge Controller with Load Detection
Product Description
The PI5USB2544A/2546A series is a USB charging port controller and power switch with an integrated USB 2.0 highspeed data line (D+/D–) switch. PI5USB2544A/2546A provides the electrical signatures on D+/D– to support charging schemes listed under 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/T1591-2009
- 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
- Compatible with USB 2.0/3.0 Power Switch requirements
- Integrated 73-mΩ (Typ.) High-Side MOSFET
- Adjustable Current-Limit up to 3A(Typ.)
- Operating Range:4.5V to 5.5V
- Max Device Current
- 2μA at Device Disabled
- 270μA at Device Enabled
- Device Package: TQFN 3.0×3.0-16L
Applications
- USB Ports (Host and Hubs)
- Notebook and Desktop PCs
- Universal Wall Charging Adapters
Link to the Datasheet
