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Texas Instruments BQ51013BYFPT
- Part No.:
- BQ51013BYFPT
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 28-XFBGA, DSBGA
- Datasheet:
-
BQ51013BYFPT.pdf
- Description:
- IC WIRELESS PWR RCVR 28DSBGA
- Quantity:
- Payment:
- Shipping:
Inventory:313
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Product details
Overview
BQ51013BYFPT from Texas Instruments is a Qi v1.2–compliant wireless power receiver IC delivering up to 5 W output, integrating synchronous rectification, LDO regulation, digital control, and Foreign Object Detection (FOD). It operates with 4–10 V rectified input, delivers regulated 5.00 V ±0.04 V at up to 1.5 A, and achieves 93% peak AC-DC efficiency in portable charging applications such as smartphones and headsets.
For engineers reviewing the BQ51013BYFPT datasheet, BQ51013BYFPT pinout, BQ51013BYFPT application, or BQ51013BYFPT equivalent, key selection considerations include WPC v1.2 FOD compliance, dynamic efficiency scaling across load range, adaptive communication current limiting, thermal shutdown at 155°C, and dual-function TS/CTRL pin supporting NTC temperature sensing and host-controlled end-power transfer.
Technical Context
The BQ51013BYFPT implements full digital control of Qi v1.2 communication via capacitive or resistive load modulation on COMM1/COMM2 pins at 2 kbps, with hardware-based FOD using rectified power measurement on the FOD pin. Its synchronous rectifier uses BOOT1/BOOT2-driven high-side FETs and supports dynamic mode switching between full- and half-synchronous operation based on IOUT-SR thresholds.
It integrates analog voltage/current loops for regulation, programmable overcurrent protection via ILIM resistor (KILIM = 314 AΩ), and multi-level VRECT dynamic thresholding (VRECT-Th1 to Th4) to maintain stable rectifier voltage under varying load conditions while enabling robust transient response and light-load efficiency optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.00 V ±0.04 V at 1 A load - ensures stable Li-ion battery charging or system rail supply without external LDO. |
| Max Output Power | 5 W - supports full-speed wireless charging for smartphones and mid-tier portable devices. |
| AC Input Range | 20 V max on AC1/AC2 - accommodates high-coupling or misaligned coil configurations without clamping loss. |
| Efficiency | 93% peak AC-DC - minimizes thermal rise and extends battery runtime during charging. |
| FOD Compliance | WPC v1.2–enabled - provides certified foreign object detection using real-time rectified power measurement on FOD pin. |
| Communication | 2 kbps bi-phase modulated signaling on COMM1/COMM2 - enables reliable error-packet exchange and power negotiation with Qi transmitters. |
| Thermal Protection | 155°C shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
| Package | DSBGA-28 (YFP), 3.0 mm × 1.9 mm - ultra-compact footprint for space-constrained mobile PCB layouts. |
Pinout & Package
Package: DSBGA-28 (YFP), 3.00 mm × 1.90 mm, 0.4-mm pitch, exposed thermal pad (to be connected to PGND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 / AC2 | AC input terminals | Direct connection points for receiver coil outputs; support up to 20 V RMS and 2 A RMS input. |
| RECT | Rectifier filter node | Internal synchronous rectifier output; requires 4.7–22 µF ceramic capacitor to PGND for ripple suppression. |
| OUT | Regulated DC output | Delivers 5 V to load; four parallel pins (D1–D4) minimize IR drop and thermal resistance. |
| COMM1 / COMM2 | Qi communication interface | Open-drain outputs for load modulation; enable bidirectional packet exchange with transmitter at 2 kbps. |
| TS/CTRL | Dual-function analog/digital pin | Supports NTC-based temperature monitoring (VCOLD/VHOT thresholds) or host-triggered EPT packet via voltage-level assertion. |
| ILIM | Hardware current limit programming | Analog input setting overcurrent threshold via external resistor (RILIM); KILIM = 314 AΩ defines IOUT limit. |
| FOD | Foreign object detection input | Measures rectified power level to compute received power; required for WPC v1.2 FOD compliance. |
| PGND | Power ground | Eight dedicated pins (A1–A4, B1–B2, C1–C2) plus thermal pad - ensures low-impedance return path for high-current rectification. |
Key Features
| Feature | Design Value |
|---|---|
| WPC v1.2–compliant FOD | Enables certified safety-critical foreign object detection using internal power calculation and FOD pin feedback - mandatory for Qi-certified designs. |
| Dynamic efficiency scaling | Adjusts rectifier and control circuitry biasing across 0–5 W load range to maintain >80% system efficiency even at 100 mW - critical for standby and low-power accessories. |
| Adaptive communication current limit | Automatically sets COMMx sink current to IOUT + 50 mA (if IOUT > 300 mA) or fixed 381 mA (if IOUT < 300 mA) - ensures reliable packet transmission without overdriving TX coil. |
| Low-power dissipative clamp | CLAMP1/CLAMP2 open-drain FETs activate at VRECT-OVP = 15 V (±0.5 V) with 150 mV hysteresis - protects internal rectifier without external TVS diodes. |
| Multi-mode EN1/EN2 control | Four-state logic (<00>, <01>, <10>, <11>) enables selective disable of wireless/wired charging, dynamic comm limit, or full shutdown - simplifies system-level power sequencing. |
| Integrated thermal management | On-die temperature sensor with VCOLD (58.7% VTS-Bias) and VHOT (19.6% VTS-Bias) thresholds triggers fault reporting or graceful shutdown - eliminates need for external thermal IC. |
Applications
| Smartphone Wireless Charging | Wireless Headset Power |
|---|---|
Use Scenario: Contactless charging of sealed smartphone chassis with no exposed ports. IC Role / Device Role / Timing Role: Primary Qi v1.2 receiver managing AC-DC conversion, regulation, and bidirectional communication with transmitter. Use Value: Enables 5 W certified charging with integrated FOD, eliminating risk of heating foreign metal objects placed on charging surface. | Use Scenario: Compact earbud case requiring efficient, low-thermal wireless top-up between uses. IC Role / Device Role / Timing Role: Secondary-side power conditioner delivering regulated 5 V to charging circuitry with minimal board area. Use Value: DSBGA-28 package (3.0 × 1.9 mm) and 93% peak efficiency reduce heat buildup and extend case battery life per charge cycle. |
| Digital Camera Battery Charger | Portable Media Player Dock |
Use Scenario: Field-deployable camera battery charger with magnetic alignment and no cable wear. IC Role / Device Role / Timing Role: Qi-compliant receiver providing stable 5 V/1.5 A output to linear or switching battery charger IC. Use Value: VOUT-REG accuracy (±0.04 V @ 1 A) ensures precise constant-voltage stage during Li-ion charging without calibration overhead. | Use Scenario: Desktop dock supplying power and data to media player via single contactless interface. IC Role / Device Role / Timing Role: Wireless power receiver co-located with USB interface, sharing thermal and layout resources. Use Value: TS/CTRL pin supports both NTC temperature monitoring and host-initiated EPT packets - allows dock MCU to coordinate safe power termination before disconnect. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BQ51025RGET | Supports 10 W output and I²C interface; requires external MOSFETs for 10 W mode; larger VQFN-24 package. | Targeted at higher-power tablets or laptops; lacks integrated LDO - needs external regulator for 5 V output. | Select BQ51025RGET only when >5 W output or host-controlled parameter tuning via I²C is required. |
| BQ51010BRHLR | Qi v1.1 compliant; 7 V output; no FOD; VQFN-20 package; lower integration (no integrated LDO). | Suitable for legacy Qi v1.1 systems or non-certified accessories where FOD is not mandated. | Choose BQ51010BRHLR only for cost-sensitive, non-certified designs lacking WPC v1.2 compliance requirements. |
Compared with BQ51013BYFPT, BQ51025RGET offers higher power but adds complexity and cost, while BQ51010BRHLR omits FOD and v1.2 compliance - making BQ51013BYFPT the optimal balance of certification, integration, and 5 W performance in compact DSBGA packaging.
Availability
BQ51013BYFPT is available at Aetrix Electronics and suitable for smartphone charging, wireless headset power delivery, and portable media player docks requiring stable component supply, WPC v1.2 certification, and compact DSBGA packaging.
Supply support for BQ51013BYFPT 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 solutions, with leadership in energy-efficient power management ICs.
The BQ51013BYFPT belongs to TI's Qi-compliant wireless power receiver product line, designed specifically for compact, certified, single-chip 5 W charging solutions in consumer portable electronics.
FAQ
What is the maximum input voltage rating for BQ51013BYFPT?
The BQ51013BYFPT supports up to 20 V on its AC1 and AC2 pins, and up to 20 V on RECT, COMM1, COMM2, OUT, CHG, CLAMP1, and CLAMP2 pins. This rating allows robust operation under high-coupling coil conditions and transient overvoltage events without external clamping components. The device also features a 15 V rectifier overvoltage protection threshold with 150 mV hysteresis, ensuring safe operation within its specified limits.
Does BQ51013BYFPT support WPC v1.2 Foreign Object Detection (FOD)?
Yes, BQ51013BYFPT fully supports WPC v1.2–compliant FOD through dedicated hardware implementation. It measures rectified power via the FOD pin and calculates received power within WPC-defined limits, enabling communication of power metrics to the transmitter for foreign object identification. This capability is integral to Qi certification and is confirmed in the device's feature list, description, and electrical specifications.
What package type is used for BQ51013BYFPT and what are its dimensions?
BQ51013BYFPT is packaged in a DSBGA-28 (YFP) package measuring 3.00 mm × 1.90 mm with 0.4-mm pitch and an exposed thermal pad. This ultra-compact, bottom-terminal package is optimized for space-constrained mobile applications and requires connection of the thermal pad to PGND for proper thermal dissipation and electrical performance.
How does the TS/CTRL pin function in BQ51013BYFPT?
The TS/CTRL pin in BQ51013BYFPT serves two distinct roles: as a temperature sense (TS) input accepting an NTC thermistor network (with VCOLD and VHOT thresholds at 58.7% and 19.6% of internal VTS-Bias), and as a control (CTRL) input for host-triggered End Power Transfer (EPT) packets. Pulling the pin below 50 mV or above 0.2 V initiates EPT transmission - enabling coordinated, safe power termination by the system host.
What is the regulated output voltage accuracy of BQ51013BYFPT at full load?
The BQ51013BYFPT delivers a regulated output voltage of 4.95 V to 5.04 V at 1000 mA load (VOUT-REG), corresponding to ±0.04 V tolerance around 5.00 V nominal. This tight regulation is maintained across temperature (–40°C to 125°C) and line conditions, ensuring compatibility with standard 5 V Li-ion charging circuits and downstream system rails without additional post-regulation.
BQ51013BYFPT 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:
- 1.5A
- Voltage - Supply:
- 4V ~ 10V
- Operating Temperature:
- 0°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-DSBGA
BQ51013BYFPT FAQ
1.How can I place an order for BQ51013BYFPT through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ51013BYFPT 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 BQ51013BYFPT reliable?
The price and inventory of BQ51013BYFPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ51013BYFPT is usually 5 days.
3.What payment methods are accepted for BQ51013BYFPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ51013BYFPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ51013BYFPT?
BQ51013BYFPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ51013BYFPT 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 BQ51013BYFPT?
For technical support, including BQ51013BYFPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ51013BYFPT requirements.
6.How does Aetrix verify that BQ51013BYFPT is sourced from the original manufacturer or authorized distributors?
All BQ51013BYFPT 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 BQ51013BYFPT meets industry standards.
7.What is the process for return or replacement of BQ51013BYFPT?
All BQ51013BYFPT units undergo pre-shipment inspection (PSI). If there is an issue with BQ51013BYFPT, 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 BQ51013BYFPT part is unused and in its original packaging.
Return procedure for BQ51013BYFPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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