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NXP Semiconductors NXQ1TXL5/101118
- Part No.:
- NXQ1TXL5/101118
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
NXQ1TXL5/101118.pdf
- Description:
- LOW-COST ONE-CHIP 5 V QI WIRELES
- Quantity:
- Payment:
- Shipping:
Inventory:2,914
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Product details
Overview
NXQ1TXL5/101118 from NXP Semiconductors is a single-chip, Qi-compliant 5 V wireless power transmitter IC for low-power applications, integrating a full-bridge power stage, analog ping detection circuitry (10 mW typical standby power), dual-channel ASK demodulation, and PID regulation. It operates from a 5 V USB supply, delivers up to 8 W continuous output, and supports WPC standards A5/A11/A12/A16 - ideal for compact wearable chargers and consumer electronics.
For engineers reviewing the NXQ1TXL5/101118 datasheet, NXQ1TXL5/101118 pinout, NXQ1TXL5/101118 application, or NXQ1TXL5/101118 equivalent, key selection considerations include its 32-pin HVQFN package, absence of Foreign Object Detection (FOD), Smart Power Limiting (SPL) for 5 V-limited supplies, thermal/overcurrent protection, and dual LED outputs for status indication.
Technical Context
The NXQ1TXL5/101118 implements a dedicated analog ping circuit for sub-10 mW standby operation, followed by digital ping and bidirectional ASK communication with Qi receivers. Its integrated full-bridge driver operates at 110–205 kHz with adjustable duty cycle (10–50%) and step resolution (0.1% duty, 500 Hz frequency).
Power control uses PID regulation with real-time voltage/current sensing (ASEN1, ASEN2, VSEN inputs) and temperature monitoring (TMP pin). Protection includes overtemperature shutdown, overcurrent limiting (5 A peak), and internal thermal reduction logic - all managed without external microcontroller intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.4 V to 5.25 V - compatible with standard USB 5 V rails; tolerates transient spikes up to 6 V absolute max |
| Standby Power | 10 mW typical - enables always-on charging pads with negligible quiescent draw |
| Output Power | Up to 8 W continuous - sufficient for smartphones, wearables, and handhelds per Qi A5/A11/A12/A16 |
| Switching Frequency | 110–205 kHz - optimized for high-efficiency magnetic coupling with standard 32.768 kHz crystal reference |
| Peak Efficiency | >75% - achieved via integrated low-EMI full-bridge stage meeting EN55022 radiated/conducted limits |
| Thermal Resistance | 30 K/W (junction-to-ambient) - requires exposed die-pad soldering and PCB vias for reliable 8 W operation |
| Protection Features | Overcurrent (5 A peak limit), overtemperature shutdown, and thermal reduction - no external fault management needed |
Pinout & Package
The NXQ1TXL5/101118 is housed in a 5 mm × 5 mm, 32-pin HVQFN package (SOT617-3) with 0.5 mm pitch and thermally enhanced exposed die-pad (pin 33) requiring direct PCB ground connection via plated-through vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDP1 / VDDP2 (pins 15,16,25,26) | Power supply input | Dual 5 V supply pins - must be decoupled with ≥22 µF + 10 nF capacitors per pin for EMI suppression |
| OUT1 / OUT2 (pins 17,18,23,24) | Full-bridge output terminals | Drive Qi transmitter coil directly; require RC snubbers (6.8 nF + 1 Ω) mounted adjacent to pins |
| LED_R / LED_G (pins 7,8) | Open-drain LED drivers | Provide visual status feedback (red/green) - support up to 20 mA load with 400 mV saturation voltage |
| ASEN1 / ASEN2 / VSEN (pins 10,13,11) | Analog sense inputs | Enable current/voltage monitoring for PID regulation and OCP - referenced to GNDD |
| XTAL_IN / XTAL_OUT (pins 29,30) | Crystal oscillator interface | Supports 32.768 kHz ±1% crystal with embedded 12 pF load capacitance - no external caps required |
Key Features
| Feature | Design Value |
|---|---|
| Integrated full-bridge power stage | Eliminates 8+ discrete MOSFETs and gate drivers - reduces BOM count and layout area for Qi transmitters |
| Analog ping detection | Achieves 10 mW standby power - enables battery-free or energy-harvested charging pad designs |
| Smart Power Limiting (SPL) | Automatically throttles output power under weak 5 V sources - prevents brownout on shared USB ports |
| Dual-channel ASK demodulation | Enables robust bidirectional communication with Qi receivers - supports packet-based configuration and control |
| On-chip thermal protection | Shuts down at junction temperature >150 °C - protects against coil misalignment or foreign object heating |
Applications
| Smartwatch Charging Pad | USB-Powered Phone Charger |
|---|---|
Use Scenario: Compact, coin-cell-sized charging surface embedded in desk accessories or travel cases. IC Role / Device Role / Timing Role: Primary Qi transmitter controller managing coil excitation, receiver handshake, and power regulation at 175 kHz. Use Value: 75%+ peak efficiency and <10 mW standby enable multi-day operation from small batteries or ambient energy harvesting. | Use Scenario: Wall adapter-integrated wireless charger delivering up to 5 W to smartphones without proprietary protocols. IC Role / Device Role / Timing Role: Self-contained 5 V Qi transmitter IC handling analog/digital ping, ASK demodulation, and PID-controlled power delivery. Use Value: SPL ensures stable 5 W output even when powered from low-current USB 2.0 ports - no host negotiation required. |
| Wireless Shaver Base Station | Toy/Consumer Electronics Charger |
Use Scenario: Sealed, waterproof charging dock for electric shavers with no exposed contacts. IC Role / Device Role / Timing Role: Fully integrated transmitter managing coil drive, temperature monitoring (TMP pin), and LED status signaling. Use Value: Integrated overtemperature protection and IP-rated enclosure compatibility eliminate need for external thermal sensors or vents. | Use Scenario: Low-cost OEM wireless charging module for children's tablets, Bluetooth speakers, or smart toys. IC Role / Device Role / Timing Role: Single-chip Qi-A5/A11 solution providing plug-and-play power transfer with minimal external components. Use Value: Reduces bill-of-materials to only crystal, snubbers, and decoupling caps - cuts manufacturing cost vs. multi-chip alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Qi-compliant wireless power transmitter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP-A20 (MPS) | Lacks integrated analog ping circuit - higher 35 mW standby power; requires external MCU for full Qi compliance | Suitable for cost-sensitive designs where standby power is secondary to BOM simplicity | Prefer NXQ1TXL5/101118 when ultra-low standby or standalone operation is required |
| STWLC38 (STMicroelectronics) | Includes FOD and digital ping only - no analog ping; supports higher 15 W output but requires 9 V input | Better suited for automotive or high-power desktop chargers needing foreign object detection | Choose NXQ1TXL5/101118 for 5 V USB-powered, FOD-exempt, low-cost wearable applications |
Compared with MP-A20 and STWLC38, the NXQ1TXL5/101118 uniquely balances ultra-low standby consumption (10 mW), full 5 V operation, and Qi A5/A11/A12/A16 compliance in a single chip - making it optimal for space-constrained, USB-powered wearable chargers where FOD is not mandated.
Availability
NXQ1TXL5/101118 is available at Aetrix Electronics and suitable for wireless charging pads, smartwatch docks, and USB-powered phone chargers requiring stable component supply across production volumes.
Supply support for NXQ1TXL5/101118 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 leader specializing in secure connectivity solutions for automotive, industrial, and consumer markets, with core expertise in RF, power management, and wireless charging.
The NXQ1TXL5/101118 belongs to NXP's Qi-compliant wireless power transmitter product line, designed specifically to simplify low-cost, 5 V USB-powered charging solutions for wearables and portable electronics without requiring external microcontrollers.
FAQ
Does the NXQ1TXL5/101118 support Foreign Object Detection (FOD)?
No, the NXQ1TXL5/101118 does not support Foreign Object Detection. It is explicitly designated as a low-cost variant omitting FOD functionality per the official NXP short data sheet Rev. 1 (April 2016). Designers requiring FOD must select alternative transmitters such as the NXQ1TXH5 or STWLC38. The NXQ1TXL5/101118 relies on thermal monitoring (TMP pin) and overcurrent protection as its primary safety mechanisms.
What crystal specifications are required for the NXQ1TXL5/101118?
The NXQ1TXL5/101118 requires a 32.768 kHz ±1% tuning-fork crystal with 12 pF load capacitance - which is embedded internally, so no external load capacitors are needed. The crystal must have a maximum drive level of 1 µW and be mounted directly on the top PCB layer without vias. Recommended part numbers include ECS-.327-12.5-34B or Abracon ABM3B-32.768KHZ-B4-T.
How is thermal management implemented in the NXQ1TXL5/101118?
The NXQ1TXL5/101118 uses an exposed die-pad (pin 33) that must be soldered to a large PCB ground plane and connected to inner-layer ground planes via ≥4 plated-through vias. This achieves a junction-to-ambient thermal resistance of 30 K/W. Internal thermal protection shuts down the device above 150 °C, while the TMP pin enables active temperature reduction before shutdown occurs.
Can the NXQ1TXL5/101118 operate from a 3.3 V supply?
No, the NXQ1TXL5/101118 has a minimum VDDP specification of 3.4 V and is designed exclusively for 5 V operation. Attempting to power it from 3.3 V will prevent proper startup and full-bridge operation. The datasheet confirms nominal operation between 3.4 V and 5.25 V, with Smart Power Limiting optimizing performance specifically for 5 V USB sources.
What are the recommended snubber components for NXQ1TXL5/101118 outputs?
NXP specifies RC snubbers consisting of a 6.8 nF capacitor in series with a 1 Ω resistor, connected from each output (OUT1 and OUT2) to ground. These must be placed within 2 mm of the respective pins to suppress high-frequency ringing and meet EN55022 EMI limits. Use high-voltage (≥100 V), low-ESR ceramic capacitors such as Murata GCM1885C2A682JA16D.
NXQ1TXL5/101118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Wireless Power Transmitter
- Current - Supply:
- 2mA
- Voltage - Supply:
- 3.4V ~ 5.25V
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HVQFN (5x5)
NXQ1TXL5/101118 FAQ
1.How can I place an order for NXQ1TXL5/101118 through Aetrix?
Please submit a Request for Quotation (RFQ) for NXQ1TXL5/101118 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 NXQ1TXL5/101118 reliable?
The price and inventory of NXQ1TXL5/101118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXQ1TXL5/101118 is usually 5 days.
3.What payment methods are accepted for NXQ1TXL5/101118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXQ1TXL5/101118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NXQ1TXL5/101118?
NXQ1TXL5/101118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NXQ1TXL5/101118 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 NXQ1TXL5/101118?
For technical support, including NXQ1TXL5/101118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXQ1TXL5/101118 requirements.
6.How does Aetrix verify that NXQ1TXL5/101118 is sourced from the original manufacturer or authorized distributors?
All NXQ1TXL5/101118 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 NXQ1TXL5/101118 meets industry standards.
7.What is the process for return or replacement of NXQ1TXL5/101118?
All NXQ1TXL5/101118 units undergo pre-shipment inspection (PSI). If there is an issue with NXQ1TXL5/101118, 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 NXQ1TXL5/101118 part is unused and in its original packaging.
Return procedure for NXQ1TXL5/101118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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