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BQ51221 Datasheet(PDF) 1 Page - Texas Instruments |
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BQ51221 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 50 page  BQ51013B Highly Integrated Wireless Receiver Qi (WPC v1.2) Compliant Power Supply 1 Features • Integrated Wireless Power Supply Receiver Solution – 93% Overall peak AC-DC efficiency – Full synchronous rectifier – WPC v1.2 compliant communication control – Output voltage conditioning – Only IC required between Rx coil and output • Wireless power consortium (WPC) v1.2 compliant (FOD enabled) highly accurate current sense • Dynamic rectifier control for improved load transient response • Dynamic efficiency scaling for optimized performance over wide range of output power • Adaptive communication limit for robust communication • Supports 20-V maximum input • Low-power dissipative rectifier overvoltage clamp (VOVP = 15 V) • Thermal shutdown • Multifunction NTC and control pin for temperature monitoring, charge complete, and fault host control 2 Applications • WPC v1.2 compliant receivers • Cell phones and smart phones • Headsets • Digital cameras • Portable media players • Handheld devices 3 Description The BQ51013B device is a single-chip, advanced, flexible, secondary-side device for wireless power transfer in portable applications capable of providing up to 5 W. The BQ51013B devices provide the receiver (RX) AC-to-DC power conversion and regulation while integrating the digital control required to comply with the Wireless Power Consortium (WPC) Qi v1.2 communication protocol. Together with the BQ50012A primary-side controller (or other Qi transmitter), the BQ51013B enables a complete contactless power transfer system for a wireless power supply solution. Global feedback is established from the secondary to the primary to control the power transfer process using the Qi v1.2 protocol. The BQ51013B integrates a low-resistance synchronous rectifier, low-dropout regulator (LDO), digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation. The BQ51013B also includes a digital controller that calculates the amount of power received by the mobile device within the limits set by the WPC v1.2 standard. The controller then communicates this information to the transmitter (TX) to allow the TX to determine if a foreign object is present within the magnetic interface and introduces a higher level of safety within magnetic field. This Foreign Object Detection (FOD) method is part of the requirements under the WPC v1.2 specification. Device Information (1) PART NUMBER PACKAGE BODY SIZE (NOM) BQ51013B VQFN (20) 4.50 mm × 3.50 mm DSBGA (28) 3.00 mm × 1.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. System Load PGND OUT EN1 AD AD-EN CHG C 4 EN2 C 1 C 2 C BOOT1 C BOOT2 AC1 AC2 COMM2 ILIM R FOD CLAMP2 C COMM2 C CLAMP2 COIL BOOT1 RECT C 3 NTC TS/CTRL BOOT2 CLAMP1 C CLAMP1 C COMM1 COMM1 HOST Tri-State Bi-State Bi-State FOD R 1 R 4 D 1 R OS BQ51013B Simplified Schematic AC to DC Voltage/ Current Conditioning Controller Rectification Drivers System Load Controller V/I Sense Power Transmitter Receiver BQ51013B Communication Battery Charger LI-Ion Battery BQ500212A Wireless Power System Overview www.ti.com BQ51013B SLUSB62D – MARCH 2013 – REVISED SEPTEMBER 2020 Copyright © 2020 Texas Instruments Incorporated Submit Document Feedback 1 Product Folder Links: BQ51013B BQ51013B SLUSB62D – MARCH 2013 – REVISED SEPTEMBER 2020 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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