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Texas Instruments BQ51010BYFPR
- Part No.:
- BQ51010BYFPR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 28-XFBGA, DSBGA
- Datasheet:
-
BQ51010BYFPR.pdf
- Description:
- IC WIRELESS PWR RCVR 28DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,163
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Product details
Overview
BQ51010BYFPR from Texas Instruments is a Qi v1.1–compliant wireless power receiver IC integrating synchronous rectification, 7-V LDO regulation, WPC-compliant communication control, foreign object detection (FOD), and dynamic rectifier voltage scaling. It delivers up to 5 W output with 93% peak AC-DC efficiency and supports 20-V max input for smartphone and portable media charging applications.
For engineers reviewing the BQ51010BYFPR datasheet, BQ51010BYFPR pinout, BQ51010BYFPR application, or BQ51010BYFPR equivalent, key selection considerations include its 7-V regulated output, integrated FOD current sensing, adaptive communication current limiting, 28-pin DSBGA package (1.90 mm × 3.00 mm), and WPC v1.1 protocol compliance without external firmware.
Technical Context
The BQ51010BYFPR implements a closed-loop Qi v1.1 system where it measures received power via the FOD pin (140-Ω ground resistor), calculates real-time load current, and transmits error packets to the transmitter to adjust VRECT dynamically across four thresholds (9.08 V to 7.11 V) based on IOUT percentage of IMAX. Its digital controller handles packet encoding at 2 kb/s using differential biphase modulation over COM1/COM2.
It integrates dual high-side synchronous rectifier drivers (BOOT1/BOOT2), low-dissipation clamp FETs (CLMP1/CLMP2, 15-V OVP), and multifunction TS/CTRL pin supporting NTC temperature monitoring, end-power-transfer signaling, and fault reporting. Rectifier operation shifts between full-synchronous and half-synchronous modes at 80–130 mA IOUT to optimize light-load efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 7.0 V ±0.06 V regulated; maintains stable supply for battery charging or PMIC input under varying coupling and load. |
| Max Output Power | 5 W; enables fast-charging capability in smartphones and headsets compliant with Qi v1.1 Class 1. |
| AC Input Range | –0.8 V to 20 V on AC1/AC2; accommodates wide-range induced voltages from misaligned or multi-coil receivers. |
| Communication Rate | 2 kb/s; supports WPC v1.1 packet-based bidirectional control including identification, configuration, and EPT signals. |
| FOD Accuracy | ±1.5% current sense over 0–750 mA; enables reliable foreign object detection per WPC v1.1 safety requirements. |
| Thermal Shutdown | 155 °C with 20 °C hysteresis; protects against sustained overload or poor PCB thermal design in compact portable enclosures. |
| Package | 28-pin DSBGA, 1.90 mm × 3.00 mm; ultra-compact footprint for space-constrained mobile device PCB layouts. |
Pinout & Package
Package: 28-pin DSBGA (YFP), body size 1.90 mm × 3.00 mm, 0.4-mm pitch, bottom-side thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1, AC2 | AC input from RX coil | Dual differential inputs for magnetically coupled AC waveform; support full-bridge synchronous rectification. |
| RECT | Rectified DC node | Internal synchronous rectifier output; connects to 4.7–22 µF ceramic filter capacitor for ripple reduction. |
| OUT (D1–D4) | Regulated 7-V output | Four parallel pins reduce IR drop and thermal resistance delivering up to 750 mA to load. |
| COM1, COM2 | WPC communication load modulator | Open-drain outputs for capacitive/resistive impedance modulation; enable bidirectional packet exchange with transmitter. |
| FOD | Foreign object detection input | Analog input referenced to GND via 140-Ω resistor; provides accurate IOUT measurement for WPC v1.1 FOD compliance. |
| ILIM | Hardware current limit programming | Resistor-to-GND sets IMAX (RILIM = 314 / IMAX); enables precise overcurrent protection independent of software. |
| TS/CTRL | NTC interface / EPT control | Supports temperature monitoring (via 10-kΩ pull-down) or end-power-transfer signaling (pull-up/pull-down logic). |
| EN1, EN2 | Charging mode control | 2-bit input selects wireless-only, wired-only, or disabled states; enables seamless adapter/wireless coexistence. |
Key Features
| Feature | Design Value |
|---|---|
| WPC v1.1–compliant digital controller | Full hardware implementation of packet encoding, decoding, and error handling-no external MCU or firmware required. |
| Dynamic Rectifier Control | Four-step VRECT target (9.08 V → 7.11 V) adjusts in real time with IOUT % of IMAX to maintain >2-V headroom for transient response. |
| Adaptive Communication Current Limit | Self-adjusting sink current during packet transmission (343–425 mA) with 1-s startup hold-off to prevent false FOD triggers. |
| Low-power dissipative OVP clamp | CLMP1/CLMP2 FETs activate at 15 V (±0.5 V) to shunt excess energy-protects internal circuitry without external TVS diodes. |
| Multifunction TS/CTRL pin | Single pin supports three distinct functions: NTC thermistor interface, EPT termination signal, or EPT fault reporting-reducing BOM count. |
Applications
| Smartphone Wireless Charging | Bluetooth Headset Power Management |
|---|---|
|
Use Scenario: Integrated into mid-tier smartphones supporting Qi-certified charging pads with automatic coil alignment detection. IC Role / Device Role / Timing Role: Secondary-side AC-DC converter and WPC v1.1 protocol engine managing global feedback, FOD, and power negotiation. Use Value: Enables 5-W charging with 93% peak efficiency and eliminates need for discrete rectifier + LDO + communication IC stack. |
Use Scenario: Embedded in compact Bluetooth headsets requiring maintenance-free wireless charging without compromising battery compartment volume. IC Role / Device Role / Timing Role: Fully integrated wireless power receiver providing regulated 7-V output and thermal/fault monitoring via TS/CTRL pin. Use Value: Reduces solution size by 40% vs discrete alternatives while meeting WPC v1.1 safety and interoperability requirements. |
| Digital Camera Battery Charging | Portable Media Player Power Supply |
|
Use Scenario: Used in DSLR/mirrorless camera battery grips to enable cordless charging without modifying existing USB-C or proprietary charging interfaces. IC Role / Device Role / Timing Role: Standalone Qi receiver converting induced AC to stable 7-V rail for Li-ion charging ICs with built-in FOD and thermal shutdown. Use Value: Delivers robust start-up under variable coupling conditions and maintains regulation during burst-mode video recording loads. |
Use Scenario: Deployed in high-resolution audio players where EMI-sensitive analog stages require clean, low-noise DC supply from wireless source. IC Role / Device Role / Timing Role: Synchronous rectifier + LDO + communication controller ensuring minimal output ripple (<10 mVpp) and precise VOUT regulation. Use Value: Achieves <1% VOUT drift from 10 mA to 750 mA load, preserving audio DAC performance and battery longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| bq51013B | Same 5-W capability and Qi v1.1 compliance but delivers 5-V output instead of 7-V; lacks AD-EN pin for wired/wireless coexistence. | Targeted at USB-native devices requiring 5-V direct battery charging; not suitable where 7-V intermediate rail is needed for buck-boost PMICs. | Select bq51013B only when system architecture mandates fixed 5-V output and no adapter fallback mode is required. |
| bq51020 | Adjustable 4.5–8-V output range (vs fixed 7-V); supports I²C interface for host-controlled parameter tuning; higher quiescent current (10 mA active vs 8 mA). | Used in programmable power systems where output voltage must adapt to battery chemistry or charge stage; adds MCU dependency. | Choose bq51020 if voltage flexibility or host calibration of FOD/thermal thresholds is required-otherwise BQ51010BYFPR offers simpler, lower-cost integration. |
Compared with bq51013B and bq51020, the BQ51010BYFPR provides a fixed, highly efficient 7-V rail optimized for minimal component count and zero-firmware wireless charging in cost-sensitive portable devices, trading programmability for reduced layout complexity and bill-of-materials.
Availability
BQ51010BYFPR is available at Aetrix Electronics and suitable for smartphone wireless charging, Bluetooth headset power management, and portable media player power supply requiring stable component supply, long-term lifecycle support, and WPC v1.1 certification readiness.
Supply support for BQ51010BYFPR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and wireless power solutions, with decades of automotive, industrial, and consumer design expertise.
The bq5101x product line delivers fully integrated, standards-compliant wireless power receivers targeting compact, cost-sensitive portable electronics-designed to eliminate firmware development and simplify Qi certification.
FAQ
What is the primary function of the BQ51010BYFPR in a wireless power system?
The BQ51010BYFPR serves as the complete secondary-side wireless power receiver IC in Qi v1.1–compliant systems. It performs AC-DC conversion via integrated synchronous rectification, regulates output to 7 V, executes WPC v1.1 communication protocol, implements foreign object detection (FOD), and manages dynamic rectifier voltage scaling-all within a single 28-pin DSBGA package. The BQ51010BYFPR requires no external microcontroller or firmware to operate.
Does the BQ51010BYFPR support both wireless and wired charging modes?
Yes, the BQ51010BYFPR supports concurrent wireless and wired charging through its AD and AD-EN pins. When a voltage >3.6 V is applied to the AD pin, the BQ51010BYFPR disables wireless charging and activates the AD-EN driver to control an external PFET for wired input path. This dual-mode capability is configured via EN1/EN2 pin states and requires no software intervention-enabling seamless adapter fallback in smartphones and wearables.
How does the BQ51010BYFPR implement Foreign Object Detection (FOD)?
The BQ51010BYFPR implements hardware-based FOD by measuring output current through the FOD pin, which connects to ground via a 140-Ω resistor. The internal ADC converts this voltage into a precise current reading (±1.5% accuracy over 0–750 mA) and reports it to the transmitter via WPC v1.1 power usage packets. If the calculated received power deviates from expected values-indicating energy loss due to metallic objects-the transmitter terminates power transfer. This FOD method is fully compliant with WPC v1.1 requirements and requires no external components beyond the resistor.
What is the role of the ILIM pin on the BQ51010BYFPR?
The ILIM pin on the BQ51010BYFPR is a hardware-programmable current limit input. Connecting an external resistor RILIM from ILIM to PGND sets the maximum output current IMAX using the formula RILIM = 314 / IMAX (Ω/A). For example, a 420-Ω resistor configures 750 mA IMAX. The BQ51010BYFPR uses this value to scale dynamic rectifier voltage targets, communication current limits, and thermal derating-ensuring consistent behavior across production units without calibration. The BQ51010BYFPR also monitors ILIM for short-circuit faults and latches off IOUT if RILIM falls below 50 Ω.
Can the BQ51010BYFPR be used without the TS/CTRL pin connected?
Yes, the BQ51010BYFPR can operate without the TS/CTRL pin connected, but functionality is limited. If unused, the pin must be pulled to ground with a 10-kΩ resistor to disable NTC monitoring and default to EPT termination mode. Leaving TS/CTRL floating may cause undefined behavior during power-up or thermal events. When connected, the pin supports three distinct roles: NTC thermistor interface (for temperature monitoring), EPT termination signal (pull-up to 1.8 V), or EPT fault reporting (pull-down to GND)-all managed entirely within the BQ51010BYFPR without external logic.
BQ51010BYFPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Wireless Power Receiver
- Current - Supply:
- 1A
- Voltage - Supply:
- 4V ~ 10V
- Operating Temperature:
- 0°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-DSBGA
BQ51010BYFPR FAQ
1.How can I place an order for BQ51010BYFPR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ51010BYFPR 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 BQ51010BYFPR reliable?
The price and inventory of BQ51010BYFPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ51010BYFPR is usually 5 days.
3.What payment methods are accepted for BQ51010BYFPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ51010BYFPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ51010BYFPR?
BQ51010BYFPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ51010BYFPR 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 BQ51010BYFPR?
For technical support, including BQ51010BYFPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ51010BYFPR requirements.
6.How does Aetrix verify that BQ51010BYFPR is sourced from the original manufacturer or authorized distributors?
All BQ51010BYFPR 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 BQ51010BYFPR meets industry standards.
7.What is the process for return or replacement of BQ51010BYFPR?
All BQ51010BYFPR units undergo pre-shipment inspection (PSI). If there is an issue with BQ51010BYFPR, 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 BQ51010BYFPR part is unused and in its original packaging.
Return procedure for BQ51010BYFPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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