NXQ1TXH5/101J

NXQ1TXH5/101J is a one-chip 5V Qi wireless transmitter. It is a controller and driver IC for a 5V Qi-certified/compliant low-power wireless charger. It offers a fully integrated solution that includes a 5V full-bridge power stage, as defined in wireless power consortium (WPC) 5V Qi standards A5, A11, A12 and A16. It uses a dedicated analogue ping circuitry to detect devices. With analogue pin circuitry, an extremely low standby (wait state) power consumption is achieved. When a Qi-compliant receiver is placed, NXQ1TXH5 starts to communicate with it. After receiver is recognized, it safely initiates wireless power transfer from transmitter to receiver, while monitoring for fault conditions such as overheating or interference from metal objects. Applications include WPC Qi certified/compliant wireless power transmitters, wireless charger for (smart) phones, toys, shavers, pads, and other handheld devices, high-efficiency low-power wireless charger for smartwatches and other wearables.

• Single-chip WPC 1.2 transmitter, operates from 5V supply
• Low EMI radiation meeting EN55022 radiated and conducted emission limits
• Very few external components needed, minimizing cost and board space
• Power stage protected against overcurrents and overtemperature
• Dual-channel amplitude shift keying (ASK) demodulation, PID regulation for power drive and control
• Demodulates communication packets from Qi-compliant receivers
• Internal 1.8V digital supply generation, LED (x 2) and buzzer outputs
• NTC input for external temperature check and protection, on-chip thermal protection
• HVQFN32 package
• Ambient temperature range from -20°C to +85°C