デザイン・ファイル
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Low-Cost One-Chip 5 V Qi Wireless Transmitter
This product is Not Recommended for New Designs. Please visit our Wireless Power Portfolio for more options.
The NXQ1TXL5 is a low cost drop-in replacement for the NXQ1TXH5 one-chip low power Qi charger transmitter device. The NXQ1TXL5 is a fully integrated one-chip controller and driver IC enabling the design of a 5 V Qi-compliant low-power wireless charger. It includes a 5 V full-bridge power stage, as defined in the Wireless Power Consortium (WPC) low power Qi configurations A5, A11, A12 and A16. The device is optimized for minimum external component count, enabling a very low cost application and a simple PCB design.
The NXQ1TXL5 has all benefits and the same high integration level of the NXQ1TXH5 device, but it comes with less configuration options and does not support Foreign Object Detection (FOD). The NXQ1TXL5 application becomes simple, enabling a true plug & play experience for the design of a low power Qi-compliant wireless charger for applications that do not require to meet full Qi certification requirements. The fixed configuration enables even further reducing the component count and allowing an even simpler PCB layout, even though it can also be used to drop into an existing NXQ1TXH5 PCB layout, omitting the external configuration resistors.
The NXQ1TXL5 uses dedicated analog ping circuitry to detect devices, according to the Qi standard, achieving a very low standby power consumption of 10 mW. The NXQ1TXL5 takes care of a reliable ASK communication and controls the wireless power transfer from the transmitter to the receiver. LED outputs are available for the user interface and the LED blinking modes is fixed.
The NXQ1TXL5 comes in a size optimized low cost 5 mm × 5 mm, 32-pin HVQFN package.
Outline 3d SOT617-3
製品詳細
Features
- Single chip WPC1.2 Qi-compliant device for an A5/A11/A12/A16 single coil Qi low power transmitter
- Transmit power up to 8 W
- Operates from 5 V supply
- Integrated high-efficiency full-bridge power stage with overcurrent and overtemperature protection
- Very low EMI radiation, passing EN55022 radiated and conducted emission test specifications
- Very few external components required, minimizing cost and board space
- Very low-power receiver detection circuitry; standby power less than 10 mW (typical)
- Robust DSP based dual channel ASK communication with Qi-compliant receivers
- 2 LED outputs
- Small HVQFN 32-pin package (5 x 5 mm) with 0.5 mm pitch
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