USB电源维护芯片

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CW3003/CW3004 单通讲USB充电掌控芯片

CW3003 and CW3004 are the USB dedicated charging controller ICs, which are fully compatible with BC1.2 and other non-BC1.2 standards like YT/D1591-2009, Apple charging specification (for i-Pad & i-Phones) and specs from Samsung Galaxy family. The IC is used to facilitate charging procedure when most of the mainstream handheld devices are detected. The CW3003 and CW3004 are suitable for all the charger products using USB interface like power bank and wall adapter. ICs are provided with enhanced ESD protection up to +/-8kV with application on DP/DM Pins. CW3003 and CW3004 are both available in tiny SOT23-6L package.

Features
• D+/D- DCP Mode per USB Battery Charging Specification 1.2
• D+/D- Short Mode per Telecommunication Industry Standard YD/T1591-2009 (Chinese)
• Supports non-BC1.2 Charging Modes by Automatic Selection
- D+/D- Option for Apple Device
- D+/D- Option for Samsung Device
• Supports one Channel Applying 2.0V on D+ and 2.7V on D-, another Channel Applying 2.7V on both D+ and D- (CW3003)
• Supports Both Channels Applying 2.7V on both D+ and D- (CW3004)
• Operating Voltage Range: 4.5V to 5.5V
• Each Channel Power Consumption - 10uA When VDDPOR threshold
• Lead(Pb)-Free, Halogen-Free, SOT23-6L Package
• 8kV HBM ESD Rating on DP/DM Pins

Applications
• Power bank
• USB Ports (Hosts and Hubs)
• MID OTG Port
• Wall Charging Adapters

Typical Application Circuit


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