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NXP Semiconductors NXQ1TXH5/101J
- Part No.:
- NXQ1TXH5/101J
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transmitters
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
NXQ1TXH5/101J.pdf
- Description:
- RF XMITTER 110-205KHZ 32VFQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,625
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Product details
Overview
NXQ1TXH5/101J from NXP Semiconductors is a fully integrated 5 V Qi-compliant wireless power transmitter IC with embedded full-bridge power stage, analog ping-based receiver detection (10 mW typical standby power), Smart Power Limiting (SPL), and Foreign Object Detection (FOD) per WPC 1.2 A5/A11/A12/A16 standards. It delivers up to 8 W continuous output for charging wearables and smartphones.
For engineers reviewing the NXQ1TXH5/101J datasheet, NXQ1TXH5/101J pinout, NXQ1TXH5/101J application, or NXQ1TXH5/101J equivalent, key selection considerations include its 5 V USB operation, HVQFN32 thermal package, dual-channel ASK demodulation, PID-regulated power control, and NTC-based thermal protection in low-power wireless charging designs.
Technical Context
The NXQ1TXH5/101J implements a dedicated analog ping circuit for sub-10 mW standby detection and transitions to digital ping and bidirectional ASK communication upon receiver presence. Its full-bridge driver operates at 110–205 kHz with 10–50% duty cycle, supporting dynamic power adjustment via SPL and Static Power Reduction (SPR) for multi-transmitter USB bus sharing.
Integrated protections include overcurrent limiting (5 A peak), on-chip thermal shutdown, external NTC monitoring, and FOD compliant with Qi v1.0–v1.2 receivers. The device uses an internal 1.8 V LDO and external 32.768 kHz crystal (12 pF load) for timing stability, with I²C interface (SDA/SCL) for configuration and debug.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.4–5.25 V DC - compatible with standard USB 5 V rails; supports operation down to 3.4 V for brownout resilience |
| Standby Power | 10 mW typical - enabled by analog ping circuitry, minimizing no-load energy waste in consumer chargers |
| Output Power | Up to 8 W continuous - meets WPC A5/A11/A12/A16 transmitter requirements for smartphones and wearables |
| Switching Frequency | 110–205 kHz - optimized for Qi-compliant coil resonance and EMI compliance (EN55022) |
| FOD Support | WPC v1.0, v1.1, v1.2 - detects metallic interference during power transfer using configurable threshold and energy analysis |
| Thermal Protection | Junction limit +150 °C with automatic shutdown - combined with NTC input and exposed die-pad grounding for reliable thermal management |
| Package | HVQFN32 (5 mm × 5 mm, 0.5 mm pitch) - thermally enhanced for high-efficiency power stage dissipation in compact PCB layouts |
Pinout & Package
The NXQ1TXH5/101J is housed in a 5 mm × 5 mm, 32-pin HVQFN package (SOT617-3) with exposed thermal pad (pin 33) requiring direct solder connection to top-layer ground and plated-through vias to bottom-layer ground for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP1 / VDDP2 (pins 15,16,25,26) | Power supply input | Accepts 3.4–5.25 V; requires parallel 22 µF + 10 nF decoupling per pin for stable full-bridge operation |
| OUT1 / OUT2 (pins 17,18,23,24) | Full-bridge power outputs | Drive Qi transmitter coil; require snubber networks (6.8 nF + 1 Ω) mounted adjacent to pins to suppress switching spikes |
| LED_R / LED_G (pins 7,8) | User interface outputs | Open-drain drivers (≤20 mA) with programmable blink modes for status indication during wait, power transfer, and fault states |
| BUZZER (pin 5) | Audible alert output | Open-drain output (≤20 mA) for tactile feedback on foreign object detection or charge completion |
| NTC (pin 12) | Temperature sensing input | Analog voltage input (0–1.5 V) for external NTC network; enables precise thermal derating and overtemperature shutdown |
| STBY (pin 14) | Standby control | Active-low enable; must be tied to GND in standalone applications to exit standby and initiate device detection |
| XTAL_IN / XTAL_OUT (pins 29,30) | Crystal oscillator interface | Supports 32.768 kHz ±1% crystal with embedded 12 pF load capacitance; requires direct top-layer routing without vias |
| SDA / SCL (pins 3,4) | I²C configuration interface | Allow runtime tuning of FOD thresholds, LED modes, SPR level, and SPL enable/disable; require test pads per NXP layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Single-chip Qi 1.2 transmitter | Integrates full-bridge driver, ASK demodulator, PID controller, LDO, and FOD logic - eliminates need for discrete gate drivers or external microcontrollers |
| Analog ping detection | Reduces average standby current to 2 mA (typical), enabling <10 mW wait-state power for Energy Star–compliant charger designs |
| Smart Power Limiting (SPL) | Automatically scales output power based on input supply capability - maintains stable operation even with current-limited USB ports or shared power rails |
| Static Power Reduction (SPR) | Allows up to four NXQ1TXH5/101J transmitters to share one 5 V/2 A USB source by dynamically capping per-device consumption |
| Dual-channel ASK demodulation | Enables robust packet decoding from Qi receivers across varying coupling conditions - critical for reliable handshake and power negotiation |
| On-chip thermal protection | Combines junction temperature monitoring with NTC input for layered thermal safety - prevents coil overheating and ensures safe operation in enclosed enclosures |
Applications
| Smartphone Charging Pad | Wearable Charger Base |
|---|---|
Use Scenario: Compact desktop or car-mount Qi charging pad for smartphones with LED status feedback and metal detection. IC Role / Device Role / Timing Role: Primary transmitter controller managing full-bridge drive, analog/digital ping, ASK communication, and real-time FOD during 5–8 W power transfer. Use Value: Enables certified, low-EMI charging with <10 mW standby and automatic power scaling on variable USB sources - reducing BOM count by 40% vs. discrete solutions. | Use Scenario: Small-form-factor charging dock for smartwatches and fitness trackers requiring high efficiency at sub-3 W loads. IC Role / Device Role / Timing Role: Integrated power controller delivering >75% peak efficiency and excellent low-power transfer efficiency (<2 W) via PID-regulated coil drive and adaptive duty cycle. Use Value: Achieves >75% system efficiency at 1 W output while maintaining EN55022 compliance - extending battery life in portable charging bases. |
| Toys & Consumer Electronics | Multi-Device Charging Station |
Use Scenario: Wireless charging base for children's toys, shavers, or earbud cases where cost, size, and safety are critical. IC Role / Device Role / Timing Role: Single-chip transmitter providing FOD, thermal protection, and buzzer/LED alerts - eliminating need for external safety monitoring circuits. Use Value: Integrates NTC input, overtemperature shutdown, and metal detection to meet IEC 62368-1 safety requirements without additional components. | Use Scenario: Multi-coil charging station supporting simultaneous charging of phone, watch, and earbuds from one USB-C port. IC Role / Device Role / Timing Role: One of multiple synchronized NXQ1TXH5/101J transmitters coordinated via SPR to limit total draw to ≤2 A from shared 5 V supply. Use Value: Enables true multi-device charging without external power management ICs - reducing system-level complexity and PCB area by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP-A20 (MPS) | Requires external MCU for FOD and communication; lacks integrated analog ping circuit - higher standby current (~35 mW) | Targeted at cost-sensitive, non-certified designs; not pre-validated for WPC A12/A16 | Choose MP-A20 only if full Qi certification is unnecessary and external firmware development is acceptable |
| STWBC2-HP (STMicro) | Supports higher 15 W output and dual-mode (Qi + PMA); includes integrated MCU but larger QFN48 package | Designed for premium multi-standard chargers; requires more complex layout and firmware integration | Choose STWBC2-HP when >8 W output or dual-standard support is required, accepting higher BOM cost and design effort |
Compared with MP-A20 and STWBC2-HP, the NXQ1TXH5/101J delivers certified Qi 1.2 compliance with lowest standby power, smallest footprint, and minimal external component count - making it optimal for compact, USB-powered, single-standard consumer chargers.
Availability
NXQ1TXH5/101J is available at Aetrix Electronics and suitable for smartphone charging pads, wearable docks, consumer electronics accessories, and multi-device charging stations requiring stable component supply and full WPC Qi certification.
Supply support for NXQ1TXH5/101J includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company specializing in secure connectivity solutions for automotive, industrial, and consumer applications, with leadership in wireless power and NFC technologies.
The NXQ1TXH5/101J belongs to NXP's Qi-certified wireless charging IC product line, designed specifically to simplify and accelerate development of compact, efficient, and standards-compliant 5 V wireless power transmitters for mass-market consumer devices.
FAQ
What is the maximum continuous output power supported by the NXQ1TXH5/101J?
The NXQ1TXH5/101J supports up to 8 W continuous power output into Qi-compliant type A5, A11, A12, or A16 transmitter coils. This rating is validated under standard thermal conditions with proper PCB layout including exposed die-pad grounding and snubber networks on OUT1/OUT2. Peak current capability reaches 5 A, but sustained operation above 8 W requires external thermal management beyond the reference design.
Does the NXQ1TXH5/101J require an external microcontroller to operate?
No, the NXQ1TXH5/101J is a fully autonomous transmitter IC and does not require an external microcontroller for basic Qi-compliant operation. It integrates all necessary functions - including analog/digital ping detection, ASK demodulation, PID power regulation, FOD, and thermal protection - within a single die. Configuration is handled via hardware pins (CNF_IN, CNF1–CNF4) or optional I²C interface for advanced tuning.
How does the NXQ1TXH5/101J achieve ultra-low standby power consumption?
The NXQ1TXH5/101J achieves 10 mW typical standby power using a dedicated analog ping circuit that operates independently of the main digital core. This circuit continuously monitors for receiver presence without activating the full-bridge driver or DSP, drawing only ~2 mA average current from the 5 V supply. The STBY pin must be held LOW to enable this mode; tying it HIGH forces full standby (50 µA).
What package type and thermal requirements apply to the NXQ1TXH5/101J?
The NXQ1TXH5/101J uses a 5 mm × 5 mm HVQFN32 package (SOT617-3) with an exposed thermal pad (pin 33). For reliable operation, this pad must be soldered to top-layer PCB ground and connected via ≥6 plated-through vias to a solid bottom-layer ground plane. Thermal resistance is rated at 30 K/W on a 45 mm × 45 mm 2-layer board - exceeding this requires enhanced copper pours or thermal vias.
Can the NXQ1TXH5/101J support multiple transmitters powered from a single USB port?
Yes, the NXQ1TXH5/101J supports multi-transmitter operation via Static Power Reduction (SPR). When configured using CNF1 output, each device limits its average current draw to enable up to four NXQ1TXH5/101J-based transmitters to share a single 5 V/2 A USB source. SPR level selection is hardware-configurable and does not require I²C communication between devices.
NXQ1TXH5/101J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Frequency:
- 110kHz ~ 205kHz
- Applications:
- General Purpose
- Modulation or Protocol:
- -
- Data Rate (Max):
- -
- Power - Output:
- -
- Current - Transmitting:
- 20mA
- Data Interface:
- I2C
- Antenna Connector:
- -
- Memory Size:
- -
- Features:
- -
- Voltage - Supply:
- 3.4V ~ 5.25V
- Operating Temperature:
- -20°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HVQFN (5x5)
NXQ1TXH5/101J FAQ
1.How can I place an order for NXQ1TXH5/101J through Aetrix?
Please submit a Request for Quotation (RFQ) for NXQ1TXH5/101J on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NXQ1TXH5/101J reliable?
The price and inventory of NXQ1TXH5/101J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXQ1TXH5/101J is usually 5 days.
3.What payment methods are accepted for NXQ1TXH5/101J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXQ1TXH5/101J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NXQ1TXH5/101J?
NXQ1TXH5/101J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NXQ1TXH5/101J order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NXQ1TXH5/101J?
For technical support, including NXQ1TXH5/101J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXQ1TXH5/101J requirements.
6.How does Aetrix verify that NXQ1TXH5/101J is sourced from the original manufacturer or authorized distributors?
All NXQ1TXH5/101J products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NXQ1TXH5/101J meets industry standards.
7.What is the process for return or replacement of NXQ1TXH5/101J?
All NXQ1TXH5/101J units undergo pre-shipment inspection (PSI). If there is an issue with NXQ1TXH5/101J, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NXQ1TXH5/101J part is unused and in its original packaging.
Return procedure for NXQ1TXH5/101J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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