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Texas Instruments BQ51010BYFPT
- Part No.:
- BQ51010BYFPT
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 28-XFBGA, DSBGA
- Datasheet:
-
BQ51010BYFPT.pdf
- Description:
- IC WIRELESS PWR RCVR 28DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,251
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Product details
Overview
BQ51010BYFPT 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 750 mA output current with 93% peak AC-DC efficiency and supports 20-V maximum input for smartphone and portable media player charging applications.
For engineers reviewing the BQ51010BYFPT datasheet, BQ51010BYFPT pinout, BQ51010BYFPT application, or BQ51010BYFPT equivalent, key selection considerations include its 7-V regulated output, adaptive communication current limit, 28-pin DSBGA package (1.90 mm × 3.00 mm), integrated FOD sensing via FOD pin, and dynamic rectifier control enabling optimized transient response across load ranges.
Technical Context
The BQ51010BYFPT implements a closed-loop Qi v1.1 system where digital control calculates received power and communicates error packets to the transmitter for real-time VRECT adjustment. Its dual-mode synchronous rectifier operates in full-synchronous mode above 100 mA and transitions to half-synchronous below that threshold, reducing conduction loss at light loads.
Dynamic rectifier control sets four VRECT targets (9.08 V, 8.28 V, 7.53 V, 7.11 V) based on output current percentage of IMAX, while dynamic efficiency scaling adjusts internal LDO losses proportionally to programmed IMAX. FOD functionality relies on precise current sense accuracy (±0.9%) and a dedicated 140-Ω ground resistor on the FOD pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 7.0 V ±0.06 V regulated; maintains stable supply for battery charging circuits without external LDO. |
| Max Output Current | 750 mA continuous; hardware-limited by ILIM pin resistor programming (KILIM = 314 AΩ). |
| AC Input Range | –0.8 V to 20 V on AC1/AC2; accommodates wide coupling variations and transient spikes in inductive links. |
| Rectifier OVP | 15 V threshold with 150 mV hysteresis; protects internal circuitry using low-RDS(on) clamp FETs (0.8 Ω). |
| Communication Rate | 2 kb/s biphase-encoded signaling on COM1/COM2; meets WPC v1.1 timing and packet structure requirements. |
| Efficiency | 93% peak AC-DC; achieved via synchronous rectification and dynamic efficiency scaling across 0–750 mA load. |
| Package | 28-pin DSBGA (YFP); 1.90 mm × 3.00 mm footprint enables ultra-thin mobile device integration. |
Pinout & Package
Package: 28-pin DSBGA (YFP), 1.90 mm × 3.00 mm body size, 0.4-mm pitch, bottom-side thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 / AC2 | AC input | Dual differential inputs from receiver coil; support full-bridge synchronous rectification with BOOT1/BOOT2 drive. |
| OUT (D1–D4) | Regulated DC output | 7-V power rail delivered to load; four parallel pins reduce IR drop and thermal resistance. |
| RECT (C2/C3) | Rectifier filter node | Internal synchronous rectifier output; requires 4.7–22 μF ceramic capacitor to PGND for ripple suppression. |
| COM1 / COM2 | WPC communication | Open-drain modulators for capacitive load modulation; connect to AC1/AC2 via capacitor for Qi-compliant signaling. |
| FOD | Foreign object detection input | Analog input scaled by 140-Ω resistor to ground; enables WPC v1.1–compliant power measurement and safety enforcement. |
| ILIM | Current limit programming | Analog input setting hardware overcurrent threshold (IILIM = 1.2 × IMAX) via RILIM = 314 / IMAX. |
| TS/CTRL | Thermal/termination control | Multi-function pin: NTC interface for temperature monitoring or 3-state driver for EPT fault/termination signaling to transmitter. |
| EN1 / EN2 | Charging enable control | Dual digital inputs selecting operating mode: <00> enables wireless charging; <10> disables wireless and enables AD path. |
Key Features
| Feature | Design Value |
|---|---|
| WPC v1.1–compliant communication | Integrated digital controller handles identification, configuration, control error, and end-power transfer (EPT) packets without firmware development. |
| Dynamic rectifier control | Four programmable VRECT targets adjust in real time to load current, providing ≥2-V headroom for transient response before global feedback convergence. |
| Adaptive communication current limit | Self-adjusting sink current on COM pins during high-load operation prevents signal distortion while maintaining robust Qi link integrity. |
| Low-power dissipative overvoltage clamp | 15-V VOVP with open-drain CLMP1/CLMP2 outputs reduces power dissipation versus Zener-based clamps and avoids thermal runaway. |
| Integrated FOD sensing | High-accuracy current sense (±0.9%) and dedicated FOD pin enable WPC-mandated foreign object detection without external ADC or processor. |
Applications
| Smartphone Charging | Wireless Headset Power |
|---|---|
|
Use Scenario: Integrated into slim-profile smartphones for contactless charging on Qi-certified pads. IC Role / Device Role / Timing Role: Secondary-side AC-DC converter and WPC protocol controller managing VRECT, power negotiation, and FOD. Use Value: Eliminates need for discrete rectifier + LDO + communication IC; 93% efficiency extends battery runtime during charging. |
Use Scenario: Embedded in compact wireless earbuds or headsets requiring minimal PCB area and low quiescent current. IC Role / Device Role / Timing Role: Regulated 7-V supply generator with dynamic efficiency scaling for variable audio playback and charging loads. Use Value: 28-pin DSBGA package fits tight form factors; 40 µA standby current preserves battery during storage. |
| Digital Camera Charging | Portable Media Player Supply |
|
Use Scenario: Used in mirrorless cameras and action cams where mechanical connectors are unreliable or sealed enclosures prevent access. IC Role / Device Role / Timing Role: Full-featured Qi receiver handling high-current bursts during image capture and video recording. Use Value: 750 mA output supports fast charging; thermal shutdown (155°C) and TS/CTRL NTC interface prevent overheating in enclosed housings. |
Use Scenario: Powers portable music/video players with varying load profiles across playback, UI navigation, and display backlighting. IC Role / Device Role / Timing Role: Adaptive rectifier voltage control maintains regulation during sudden load steps (e.g., display on/off). Use Value: Dynamic rectifier control ensures ≤100 µs response to 720-mA load steps without output droop or instability. |
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 | 5-V output, same 750 mA rating, identical pinout and protocol compliance. | Targeted for 5-V battery systems (e.g., Li-ion single-cell); lacks 7-V headroom for buck-boost charging topologies. | Select when system uses 5-V battery architecture and does not require higher intermediate rail for charging ICs. |
| bq51020 | Adjustable 4.5–8-V output, I²C interface, same 5-W capability and DSBGA package. | Supports programmable output voltage and host-controlled diagnostics; adds complexity but enables flexible power management. | Choose when design requires voltage configurability or host MCU coordination of charging state and fault reporting. |
Compared with bq51013B and bq51020, the BQ51010BYFPT provides fixed 7-V output optimized for direct connection to buck-boost chargers, eliminates I²C overhead, and simplifies layout with fewer external components-making it ideal for cost-sensitive, space-constrained consumer devices.
Availability
BQ51010BYFPT is available at Aetrix Electronics and suitable for smartphone charging, wireless headset power delivery, and portable media player supply requiring stable component supply, long-term lifecycle support, and full WPC v1.1 certification documentation.
Supply support for BQ51010BYFPT 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 company specializing in analog, embedded processing, and wireless power technologies, with over 90 years of innovation in power management ICs.
The bq5101x product line delivers highly integrated Qi-compliant wireless power receivers for portable electronics, designed to eliminate discrete power conversion stages and accelerate time-to-market for certified contactless charging solutions.
FAQ
What is the primary function of the BQ51010BYFPT in a wireless charging system?
The BQ51010BYFPT serves as the secondary-side wireless power receiver IC in Qi v1.1–compliant systems. It performs AC-DC conversion via integrated synchronous rectification, regulates a precise 7-V output, executes WPC communication protocols-including foreign object detection-and dynamically controls rectifier voltage to optimize efficiency and transient response. The BQ51010BYFPT replaces multiple discrete components, enabling compact, certified designs for smartphones and wearables.
How does the BQ51010BYFPT implement foreign object detection (FOD)?
The BQ51010BYFPT implements 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 digital power value compliant with WPC v1.1, then transmits it to the transmitter for real-time foreign object assessment. This method requires no external sensors or calibration and is integral to the BQ51010BYFPT's safety architecture-ensuring reliable detection without additional components.
What package type and dimensions does the BQ51010BYFPT use?
The BQ51010BYFPT uses a 28-pin DSBGA (YFP) package with nominal body dimensions of 1.90 mm × 3.00 mm and 0.4-mm pitch. It features a bottom-side thermal pad for enhanced heat dissipation in thin-profile portable devices. This package is confirmed in TI's official datasheet SLUSBB8A and matches the orderable part number BQ51010BYFPT exactly.
Can the BQ51010BYFPT operate with both wireless and wired input sources?
Yes-the BQ51010BYFPT supports dual-input operation. When voltage is applied to the AD pin (≥3.6 V), the AD-EN pin drives an external PFET to route power from the wired adapter to OUT, automatically disabling wireless charging. This seamless transition is controlled by EN1/EN2 logic states and requires no firmware intervention, making the BQ51010BYFPT suitable for hybrid-charging architectures in modern smartphones.
What are the key thermal protection mechanisms built into the BQ51010BYFPT?
The BQ51010BYFPT includes thermal shutdown at 155°C with 20°C hysteresis, plus configurable NTC monitoring via the TS/CTRL pin. When used as a temperature sensor input, TS/CTRL supports cold/hot thresholds (58.7% and 19.6% of internal 2.2-V bias) for early thermal warning. These protections are hardware-enforced and fully operational across the –40°C to 125°C junction temperature range specified for the BQ51010BYFPT.
BQ51010BYFPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-XFBGA, DSBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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
BQ51010BYFPT FAQ
1.How can I place an order for BQ51010BYFPT through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ51010BYFPT 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 BQ51010BYFPT reliable?
The price and inventory of BQ51010BYFPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ51010BYFPT is usually 5 days.
3.What payment methods are accepted for BQ51010BYFPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ51010BYFPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ51010BYFPT?
BQ51010BYFPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ51010BYFPT 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 BQ51010BYFPT?
For technical support, including BQ51010BYFPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ51010BYFPT requirements.
6.How does Aetrix verify that BQ51010BYFPT is sourced from the original manufacturer or authorized distributors?
All BQ51010BYFPT 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 BQ51010BYFPT meets industry standards.
7.What is the process for return or replacement of BQ51010BYFPT?
All BQ51010BYFPT units undergo pre-shipment inspection (PSI). If there is an issue with BQ51010BYFPT, 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 BQ51010BYFPT part is unused and in its original packaging.
Return procedure for BQ51010BYFPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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