My Inquiry
My Account
Texas Instruments BQ51025YFPR
- Part No.:
- BQ51025YFPR
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 42-XFBGA, DSBGA
- Datasheet:
-
BQ51025YFPR.pdf
- Description:
- BQ51025 - 10W WPC COMPLIANT SING
- Quantity:
- Payment:
- Shipping:
Inventory:2,913
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BQ51025YFPR from Texas Instruments is a WPC v1.2–compliant single-chip wireless power receiver IC with proprietary 10-W power delivery capability, fully integrated synchronous rectifier (96% efficient), post-regulation LDO (97% efficient), adjustable output voltage (4.5–10 V), and I²C host interface - deployed in smartphones, power banks, and 2S battery charging systems.
For engineers reviewing the BQ51025YFPR datasheet, BQ51025YFPR pinout, BQ51025YFPR application, or BQ51025YFPR equivalent, key selection considerations include its dual-mode operation (5-W WPC / 10-W proprietary), dynamic rectifier control for transient response, hardware current limit via RILIM, thermal shutdown at 155°C, and DSBGA-42 package with 3.60 mm × 2.89 mm footprint.
Technical Context
The BQ51025YFPR implements WPC v1.2 digital communication (2 kbps biphase encoding) using COMM1/COMM2 for load modulation and authentication, while supporting TI's proprietary handshake with bq500215 to enable 10-W operation. Its dynamic rectifier control algorithm adjusts VRECT target (VOUT + 0.12 V to VOUT + 2.0 V) based on real-time IOUT and RILIM setting to optimize LDO headroom and efficiency.
It integrates a fully synchronous rectifier with BOOT1/BOOT2 gate drive, CLAMP1/CLAMP2 for secondary voltage clamping, AD-EN for adapter MUX control, and TS/CTRL for temperature sensing or EPT signaling. The VO_REG pin sets output regulation via resistor divider (default 0.5 V feedback), programmable over I²C to support 2S battery configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Power | 10 W (proprietary mode with bq500215); 5 W (WPC v1.2 standard mode) |
| System Efficiency | 84% at 10 W output with bq500215 TX controller |
| Output Voltage Range | Adjustable 4.5 V to 10 V via VO_REG resistor divider or I²C |
| Synchronous Rectifier Eff. | 96% - reduces conduction loss vs. diode rectification |
| Post-Regulator Eff. | 97% - low-dropout LDO protects downstream charger from RECT transients |
| Communication Interface | I²C (100 kHz max) for host configuration and status reporting |
| Thermal Shutdown | 155°C with 20°C hysteresis - prevents permanent damage during overload |
Pinout & Package
Package: 42-pin DSBGA (YFP), body size 3.60 mm × 2.89 mm, 0.4-mm pitch, bottom-side thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1 / AC2 | AC input from resonant tank | Primary RF inputs - connect to receiver coil; rated –0.8 V to 20 V |
| RECT | Rectified DC output node | Internal synchronous rectifier output; feeds LDO input; regulated to VOUT + 0.12–2.0 V |
| OUT | Main power output | Delivers up to 2.5 A to load; includes overcurrent protection via ILIM pin |
| VO_REG | Output voltage feedback | 0.5 V reference point - sets VOUT via external resistor divider (e.g., 9:1 for 5 V) |
| COMM1 / COMM2 | WPC communication FETs | Open-drain outputs modulating reflected impedance; 2 kbps signaling; RDS-ON ≤1 Ω |
| CLAMP1 / CLAMP2 | Secondary voltage clamp | Low-RDS-ON (≤0.5 Ω) FETs limiting secondary voltage swing during misalignment |
| TS/CTRL | Temperature sense / EPT control | Pulled high → "charge complete"; pulled low → "over temperature"; enables system-level safety |
| PMODE | Mode indicator / gate drive | Low = 10-W proprietary mode; High = 5-W WPC mode; also drives external current-limit switch |
| SCL / SDA | I²C interface | Standard bidirectional I²C bus (100 kHz); allows host to read status, adjust VO_REG, configure IO_REG |
| ILIM | Hardware current limit input | Analog pin setting IOUT limit (KILIM/RILIM); supports dual thresholds (0.6 V / 1.2 V) for mode switching |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Rectifier Control | Adaptively adjusts VRECT target (VOUT + 0.12 V to VOUT + 2.0 V) based on real-time load to maintain LDO headroom during transients |
| Proprietary 10-W Authentication | Two-way handshake with bq500215 TX ensures safe 10-W operation while maintaining WPC v1.2 compliance for interoperability |
| Inductorless Post-Regulation | Integrated LDO eliminates external inductor - reduces solution height and BOM count for ultra-thin portable devices |
| Pad Detect & Power Signal Frequency Measurement | Enables host to detect placement on TX surface and optimize alignment - improves user experience and coupling efficiency |
| 2S Battery Support | 10-V max output and adjustable regulation allow direct charging of two-series Li-ion batteries without external buck converter |
Applications
| Smartphone Wireless Charging | Power Bank Receiver Module |
|---|---|
Use Scenario: Integrated into slim smartphone PCBs where board space and height are constrained. IC Role / Device Role / Timing Role: Single-chip wireless power receiver handling rectification, regulation, WPC v1.2 communication, and host I²C control. Use Value: 84% system efficiency and inductorless LDO reduce thermal load and enable <7.5-mm device thickness. | Use Scenario: Embedded in portable power banks to accept wireless input while delivering USB-C output. IC Role / Device Role / Timing Role: Receives and regulates up to 10 W from TX pads; manages charge path to internal 2S battery pack. Use Value: Adjustable 4.5–10 V output and 2S support eliminate need for secondary buck stage - simplifies power architecture. |
| Tablet Charging Dock | POS Terminal Wireless Power |
Use Scenario: Mounted inside docking cradles for tablets requiring fast, cable-free recharging. IC Role / Device Role / Timing Role: Receives power via large-area coil; communicates placement quality to host via I²C for UX feedback. Use Value: Power signal frequency measurement and pad detect allow visual alignment guidance - increases first-time coupling success rate. | Use Scenario: Used in compact, sealed point-of-sale terminals where connector wear and moisture ingress are reliability concerns. IC Role / Device Role / Timing Role: Provides isolated, contactless power input; uses TS/CTRL pin to trigger EPT on overtemperature or full charge. Use Value: Thermal shutdown (155°C) and robust 2.5-A output rating ensure continuous operation in enclosed retail enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar wireless power receiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| bq51020YFPR | Stand-alone WPC v1.2 receiver; no proprietary 10-W mode; identical DSBGA-42 package and pinout | Limited to 5 W; lacks PMODE pin and bq500215 handshake logic - simpler firmware but lower peak power | Select when WPC-only interoperability suffices and 10-W capability is unnecessary |
| bq51221YFPR | Dual-mode (WPC v1.2 + PMA) receiver; adds PMA compatibility; same 10-W proprietary mode with bq500215 | Supports both WPC and PMA transmitter ecosystems; larger feature set increases firmware complexity | Select for multi-standard deployments (e.g., global retail kiosks supporting both standards) |
Compared with bq51020YFPR and bq51221YFPR, the BQ51025YFPR uniquely balances WPC v1.2 compliance, TI-specific 10-W performance, and minimal external components - making it optimal for cost-sensitive, high-efficiency 2S battery applications where PMA support is not required.
Availability
BQ51025YFPR is available at Aetrix Electronics and suitable for smartphone wireless charging, power bank receivers, and 2S battery applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for BQ51025YFPR 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 designing analog, embedded processing, and wireless power solutions for industrial, automotive, and consumer markets.
The BQ51025YFPR belongs to TI's wireless power receiver product line, engineered specifically to integrate WPC-compliant communication, high-efficiency power conversion, and host-controlled configurability into a minimal-footprint DSBGA package for portable electronics.
FAQ
What is the maximum output current supported by the BQ51025YFPR?
The BQ51025YFPR supports up to 2.5 A output current, as specified in its absolute maximum ratings. In practice, sustained operation is limited by thermal design and the RILIM resistor value - for example, a 495-Ω RILIM sets ~1.7 A hardware current limit in 10-W mode. The device includes overcurrent protection that latches off IOUT if ILIM threshold is exceeded, requiring power cycle to reset.
Does the BQ51025YFPR require an external inductor for regulation?
No, the BQ51025YFPR does not require an external inductor. It integrates a post-regulation LDO after the synchronous rectifier, enabling inductorless operation - a key advantage for ultra-thin mobile devices. This eliminates inductor-related height, cost, and EMI concerns while maintaining 97% LDO efficiency and transient robustness via Dynamic Rectifier Control.
How does the BQ51025YFPR differentiate between WPC and proprietary 10-W operation?
The BQ51025YFPR performs two-way authentication with the transmitter: standard WPC v1.2 packets identify generic chargers (enabling 5-W mode), while proprietary handshake with TI's bq500215 controller confirms 10-W capability. The PMODE pin outputs low during 10-W operation and high in WPC mode, allowing host systems to adapt behavior - such as enabling higher-current charging algorithms only when 10-W is confirmed.
Can the BQ51025YFPR be used for 2S lithium-ion battery charging?
Yes, the BQ51025YFPR is explicitly designed for 2S battery applications. Its adjustable output voltage range (4.5 V to 10 V) accommodates typical 2S Li-ion packs (7.4 V nominal, 8.4 V fully charged). The VO_REG pin allows precise regulation - e.g., setting 8.4 V via resistor divider - and the 10-V absolute maximum supports margin for charging termination and thermal derating.
What is the purpose of the TS/CTRL pin on the BQ51025YFPR?
On the BQ51025YFPR, the TS/CTRL pin serves dual functions: as a temperature sense input (pulling low triggers overtemperature EPT) and as a host-controlled end-power-transfer (EPT) signal (pulling high sends "charge complete"). It interfaces directly with battery management ICs or microcontrollers, enabling system-level safety responses without additional analog circuitry - critical for certified wireless charging implementations.
BQ51025YFPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 42-XFBGA, DSBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Wireless Power Receiver
- Current - Supply:
- -
- Voltage - Supply:
- 4V ~ 11V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 42-DSBGA (3.56x2.84)
BQ51025YFPR FAQ
1.How can I place an order for BQ51025YFPR through Aetrix?
Please submit a Request for Quotation (RFQ) for BQ51025YFPR 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 BQ51025YFPR reliable?
The price and inventory of BQ51025YFPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BQ51025YFPR is usually 5 days.
3.What payment methods are accepted for BQ51025YFPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BQ51025YFPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BQ51025YFPR?
BQ51025YFPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BQ51025YFPR 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 BQ51025YFPR?
For technical support, including BQ51025YFPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BQ51025YFPR requirements.
6.How does Aetrix verify that BQ51025YFPR is sourced from the original manufacturer or authorized distributors?
All BQ51025YFPR 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 BQ51025YFPR meets industry standards.
7.What is the process for return or replacement of BQ51025YFPR?
All BQ51025YFPR units undergo pre-shipment inspection (PSI). If there is an issue with BQ51025YFPR, 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 BQ51025YFPR part is unused and in its original packaging.
Return procedure for BQ51025YFPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BQ51025YFPR Tags
-
TPS2511DGNR
Texas Instruments
-
UTC2000/MG
Microchip Technology
-
TUSB320HAIRWBR
Texas Instruments
-
TPS61252DSGR
Texas Instruments
-
PI5USB30216CXUAEX
Diodes Incorporated
-
SN6501DBVR
Texas Instruments
-
CYPD3177-24LQXQT
Infineon Technologies
-
SN6501QDBVRQ1
Texas Instruments
-
STUSB1600AQTR
STMicroelectronics
-
SN6505BDBVR
Texas Instruments
-
SN6501DBVT
Texas Instruments
-
TPS65150PWPR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
