BQ51013CQWRHLRQ1 - 5W WPC 1.3 Wireless Power Receiver | Texas Instruments
MPN: BQ51013CQWRHLRQ1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.45 | $4.45 |
| 10 | $4 | $40.00 |
| 100 | $3.55 | $355.00 |
| 500 | $3.13 | $1,565.00 |
| 1,000 | $2.74 | $2,740.00 |
BQ51013CQWRHLRQ1 Overview
A wireless power receiver (sometimes called a Qi receiver or inductive charging Rx) is a specialised power management IC that converts the AC voltage induced in a receiver coil by a wireless charging transmitter into a stable DC output voltage. Receivers sit at the bottom of the power management hierarchy as application-specific PMICs, distinct from general-purpose LDOs, buck converters, and battery chargers. Modern WPC-compliant receivers such as BQ51013C-Q1 also handle the bi-directional Qi communication protocol used by the transmitter to control power transfer, run object detection, and negotiate foreign objects in the magnetic field.
Key features include integrated low-loss synchronous rectification, dynamic rectifier clamp voltage adjustment for foreign object detection (FOD), adaptive communication modulation, and a programmable output voltage up to roughly 5 V. The device supports resonant frequency tuning, over-temperature protection, and an adjustable end-of-charge behaviour. Its 3.5 mm x 4.5 mm 20-pin VQFN-HR (RHL) footprint with a thermal pad enables compact PCB integration in space-constrained automotive cabin and console modules.
The BQ51013CQWRHLRQ1 uses TI's mixed-signal CMOS architecture, combining a high-efficiency rectifier, a digital state machine that speaks Qi v1.3, and an adaptive comm-link receiver for load modulation. FOD is implemented by comparing transmitted and received power and using a Qi-defined reference to flag metallic foreign objects in the magnetic field before they heat up.
Typical applications include automotive Qi wireless charging pads, in-cabin phone charging trays, eMobility accessories, and Qi-certified accessories for infotainment systems. The wide operating range also suits industrial Qi charging cradles and medical device charging bases that demand a regulated, safe power rail.
When designing with the BQ51013CQWRHLRQ1, observe the LC tank tuning guidance in the datasheet to align the receiver coil inductance with the Qi specification; the matching network on the output is the single most important factor in achieving a clean 5 V output at full load. Also account for thermal dissipation on the RHL exposed pad - a 4-layer PCB with copper thermal vias is recommended at 5 W continuous output.
This page synthesises distributor pricing, drop-in same-brand variants, cross-brand Qi receiver alternatives, and design notes not found verbatim in the manufacturer datasheet.
Drop-in alternatives for BQ51013CQWRHLRQ1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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BQ51013CQWRHLRQ1 Specifications
| Function | Wireless Power Receiver (Qi Rx, secondary-side) |
| WPC Compliance | Qi v1.3 (WPC v2.0/IP-based) |
| Maximum Output Power | 5 W |
| Output Voltage | Up to ~5 V (programmable) |
| Input Voltage (Coil) | AC from Rx coil, rectified internally |
| Rectifier Type | Integrated synchronous low-loss rectification |
| Foreign Object Detection (FOD) | Yes, adaptive WPC-defined FOD |
| Communication | Qi load modulation (back-channel to Tx) |
| Operating Temperature Range | -40 C to +125 C (automotive grade 1) |
| Package | VQFN-HR-20 (RHL), 3.5 mm x 4.5 mm |
| Mounting Type | Surface Mount |
| Pin Count | 20 |
| Thermal Pad | Exposed thermal pad (must be soldered) |
| Automotive Qualification | AEC-Q100 qualified (suffix -Q1) |
| RoHS Status | Compliant |
| Communication Modulation | Adaptive (capacitive / resistive load modulation) |
| Product Family | BQ5101xC-Q1 (Qi v1.3 receivers) |
BQ51013CQWRHLRQ1 Pin Configuration
| Pin 1 | AC1 — Receiver coil input AC (full bridge rectifier) |
| Pin 2 | AC2 — Receiver coil input AC (full bridge rectifier) |
| Pin 3 | RECT — Rectified output to internal regulator |
| Pin 4 | OUT — Regulated DC output up to ~5V |
| Pin 5 | GND — Ground return |
| Pin 6 | AGND — Analog ground |
| Pin 7 | COM — Communication modulation output to coil |
| Pin 8 | AD_EN — Adapter enable |
| Pin 9 | CHG_EN — Charge enable control input |
| Pin 10 | ILIM — Current limit set / sensing |
| Pin 11 | VOUT_SNS — Output voltage sense |
| Pin 12 | TS — Thermal sense input |
| Pin 13 | FOD_SET — FOD threshold programming |
| Pin 14 | RESET — Reset input |
| Pin 15 | TSHUT — Thermal shutdown indicator |
| Pin 16 | INT — Interrupt output |
| Pin 17 | SCL — I2C clock (optional configuration) |
| Pin 18 | SDA — I2C data (optional configuration) |
| Pin 19 | ADDR — I2C address select |
| Pin 20 | NC — Not connected (per datasheet) |
Typical Applications
BQ51013CQWRHLRQ1 is suitable for 6 applications: Automotive In-Cabin Qi Charging Tray, Qi-Certified Phone Charging Cradle (Automotive), Medical Device Wireless Charging Base, Industrial Qi Charging Cradle, E-mobility and Personal E-Vehicle Charging, Smart Home Qi Charging Stations.
Automotive In-Cabin Qi Charging Tray
The BQ51013CQWRHLRQ1's 5W Qi v1.3 receiver silicon, AEC-Q100 Grade 1 qualification, and -40 C to +125 C operating range make it the standard Rx for in-cabin Qi charging trays integrated into centre consoles and armrests. It directly drives downstream 5V rails in automotive infotainment modules, providing clean regulated power to USB charging ports and phones placed in the tray. Placed under a Qi charging coil on a 4-layer PCB, the receiver negotiates power with the transmitter and supplies a regulated 5V rail without needing a separate rectification stage. AEC-Q100 qualification is the decisive spec over commercial receivers in cabin applications where vehicle OEM reliability standards are mandatory.
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Qi-Certified Phone Charging Cradle (Automotive)
For Qi v1.3 certified automotive cradles in luxury vehicles, the BQ51013CQWRHLRQ1 supplies a regulated up-to-5V output with built-in FOD as required by WPC v1.3. Power dissipation on the VQFN-HR-20 (RHL) exposed thermal pad is bounded to roughly 1W at full 5W output, well within the 3.5mm x 4.5mm RHL thermal capability on a 4-layer PCB with thermal vias. Mounted beneath the charging surface, the receiver communicates with the Tx coil using Qi load modulation, eliminating the need for a separate protocol controller. The automotive qualification ensures OEM warranty compliance over the vehicle lifetime.
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Medical Device Wireless Charging Base
The BQ51013CQWRHLRQ1's industrial temperature range and strict FOD make it well-suited to medical device wireless charging bases that power hearing aids, glucometers, and patient-worn monitors. Qi v1.3 FOD is critical because metallic objects in the charging field must be detected before they overheat in clinical settings. Operating from rectified AC produced by the receiver coil, the device supplies a regulated 5V to downstream battery charging ICs such as the BQ25180. The 20-pin RHL VQFN-HR footprint fits compact medical handheld enclosures while meeting reliability standards equivalent to industrial-grade testing.
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Industrial Qi Charging Cradle
Rugged handheld scanners, barcode readers, and warehouse tablets demand Qi-compliant charging cradles that operate reliably across industrial temperature extremes. The BQ51013CQWRHLRQ1's industrial/automotive grade qualification makes it ideal for charging docks that survive factory floor conditions without compromise. The synchronous rectifier minimizes heat generation inside sealed charging bases, while the compact 3.5mm x 4.5mm RHL package fits behind small charging windows. Qi v1.3 compatibility ensures interoperability with any WPC-certified transmitter on the production floor.
Recommended
E-mobility and Personal E-Vehicle Charging
Electric scooters, e-bikes, and shared mobility devices benefit from Qi wireless charging cradles that avoid exposed contact pins in weather-exposed environments. The BQ51013CQWRHLRQ1 implements Qi v1.3 with sealed inductive coupling, rated for vehicular and outdoor use. Its 5W output is appropriate for charging onboard telematics controllers and battery management accessory modules on shared e-mobility fleets. FOD prevents metallic debris on the charging pad from causing faults in fleet operations where reliability directly affects uptime.
Recommended
Smart Home Qi Charging Stations
Wireless charging stations for smart speakers, displays, and IoT hubs increasingly demand Qi v1.3 receivers with FOD for safe home integration. The BQ51013CQWRHLRQ1's automotive-grade robustness makes it suitable for premium home products where end-users expect long-term reliability, while the package's small footprint suits integration behind decorative furniture surfaces. The receiver's programmability enables tuning to non-standard coils used in furniture and integrated furniture applications where flat-form factor dictates coil geometry.
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Engineering reference data for BQ51013CQWRHLRQ1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | BQ51013CQWRHLR | BQ51013CRHLR | BQ51025RFVR | BQ51013BQWRHLRQ1 | P9026AC-RGI |
|---|---|---|---|---|---|---|
| Package | VQFN-HR-20 (RHL) | VQFN-HR-20 (RHL) | VQFN-HR-20 (RHL) | VQFN-HR-20 (RHL) | VQFN-HR-20 (RHL) | VQFN-24 equivalent (verify layout) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | IDEX |
| WPC Compliance | Qi v1.3 (WPC 2.0) | Qi v1.3 | Qi v1.3 | Qi v1.3 | Qi v1.3 | Qi v1.2 |
| Output Power | 5 W | 5 W | 5 W | 10 W (extendable) | 5 W | 5 W |
| Automotive Grade (AEC-Q100) | Yes (AEC-Q100 Grade 1) | No (commercial) | No (commercial) | No | Yes (AEC-Q100) | Verify datasheet |
| Operating Temperature | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | Check datasheet |
| Foreign Object Detection (FOD) | Yes (WPC v1.3 adaptive) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- AEC-Q100 Grade 1 automotive qualification (vs BQ51013CQWRHLR (commercial variant))
- Qi v1.3 (WPC 2.0) protocol support with adaptive FOD (vs BQ51003 (older 2.5W Qi v1.1))
- Compact 3.5mm x 4.5mm RHL VQFN-HR package with exposed pad (vs P9026AC-RGI (IDEX 5W Qi Rx))
Design Notes
Estimated: at 5W output and approximately 75% rectifier efficiency, expected thermal dissipation is around 1.2W, requiring the RHL exposed thermal pad to be soldered to a copper pour with at least 8-10 thermal vias on a 4-layer PCB. Keep the receiver coil matching network within 10 mm of the AC1/AC2 pins to minimize parasitic inductance that degrades rectifier efficiency.
Do not place digital signals or noisy DC-DC converters directly under the receiver coil. The Rx coil's magnetic field couples high-frequency noise into nearby traces; keep the keep-out area clear. Also ensure the FOD threshold (FOD_SET pin) is calibrated against a Qi-certified reference Tx, not estimated - FOD must be tuned per Qi v1.3 procedure for certification.
Series capacitors on AC1/AC2 should be C0G/NP0 with low tolerance (5% or better). Any piezo-electric effect in X7R/Y5V capacitors on the coil node introduces distortion that fools FOD. Use quality C0G dielectric capacitors from Murata, TDK, or Yageo specifically for the resonator network.
The COM pin drives the comm-modulation transistor back to the coil. Route this trace as a short, direct connection with a ground-return gap on either side to minimize parasitic inductance. The COM signal amplitude directly impacts Qi protocol certification margins; long or noisy COM traces cause reduced charging efficiency and protocol test failures.
Compliance Information
AEC-Q100 Grade 1 qualified via -Q1 suffix on this MPN. RoHS and REACH compliant per TI product page; halogen-free termination per industry-standard automotive PMIC compliance.
