NXQ1TXA5/404J

NXQ1TXA5 One-chip 5 V Qi wireless transmitter Rev. 1.2 10 September 2015 Product short data sheet 1. General description The NXQ1TXA5 is a controller/driver IC for a 5 V Qi-certified/compliant low-power wireless charger. It offers a fully integrated solution that includes a 5 V full-bridge power) stage, as defined in Wireless Power Consortium (WPC) 5 V Qi standards A5, A11, A12 and A16. The NXQ1TXA5 uses dedicated analog ping circuitry to detect devices, according to the Qi standard, achieving extremely low standby power consumption. If a Qi-compliant receiver is detected, the NXQ1TXA5 starts to communicate with it. If the receiver is recognized, it safely initiates wireless power transfer from the transmitter to the receiver, while monitoring for fault conditions such as overheating or interference from metal objects. The device is optimized to operate from a USB power supply and uses Smart Power Limiting (SPL) to adjust the output power automatically to compensate for power-limited supplies. The device supports Foreign Object Detection (FOD). LED outputs and a buzzer output are available for the user interface. The LED outputs feature a number of blinking modes. Static Power Reduction (SPR) allows multiple NXQ1TXA5-based transmitters to operate from a single USB power supply by limiting power consumption per device. The NXQ1TXA5 is available in a 5 mm 5 mm, 32-pin HVQFN package. 2. Features and benefits One-chip WPC 1.1.2 Qi-compliant device for A5/A11/A12/A16 5 V single-coil low-power transmitter Operates from 5 V supply Integrated high-efficiency full-bridge power stage with low EMI radiation meeting EN55022 radiated and conducted emission limits Very few external components required, minimizing cost and board space Extremely low-power receiver detection circuitry standby power 10 mW (typical) Power stage fully protected against overcurrents and overtemperature Fully integrated accurate coil current measurement Demodulates and decodes communication packages from Qi-compliant receivers PID regulation for closed-loop power drive and control Internal 1.8 V digital supply generation LED (2) and buzzer outputs NTC input for external temperature check and protection On-chip thermal protection Small HVQFN 32-pin package (5 5 mm) with 0.5 mm pitchNXQ1TXA5 NXP Semiconductors One-chip 5 V Qi wireless transmitter FOD with automatic switching between V1.1 and V1.0 for legacy receiver support FOD levels can be adjusted using external resistors to compensate for application differences to meet Qi certification requirements Smart Power Limiting (SPL) function to adapt to power-limited 5 V supplies Static Power Reduction (SPR) function to limit power consumption Supports Near Field Communication (NFC) TAG applications with delayed start-up 3. Applications Wireless Power Consortium (WPC) certified/compliant Qi wireless power transmitters 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions Min Typ Max Unit V power supply voltage on pins VDDP1 and VDDP2 3.5 - 5.25 V DDP I power supply current on pins VDDP1 and VDDP2 DDP Ping mode (average current) - 2 2.8 mA Power Transfer mode (no load) - 15 - mA Power Transfer mode (with load) - - 5 A 5. Ordering information Table 2. Ordering information Type number Package Name Description Version NXQ1TXA5 HVQFN32 plastic thermal enhanced very thin quad flat package no leads SOT617-3 32 terminals body 5 5 0.85 mm 5.1 Ordering options Table 3. Ordering options Type number Orderable part Package Packing method Minimum Temperature number ordering quantity NXQ1TXA5 NXQ1TXA5/404J HVQFN32 reel 7 Q1/T1, 1500 T = 20 Cto+85 C amb *standard mark SMD non-dry-pack NXQ1TXA5 SDS All information provided in this document is subject to legal disclaimers. NXP Semiconductors N.V. 2015. All rights reserved. Product short data sheet Rev. 1.2 10 September 2015 2 of 15