BQ51013C-Q1数据手册TI中文资料规格书

描述 Description

The BQ51013C-Q1 device is a single-chip, advanced, flexible, secondary-side device for wireless power transfer in portable applications capable of providing up to 5W. The BQ51013C-Q1 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 v2.0 communication protocol. Together with the BQ500212A primary-side controller (or other Qi transmitter), the BQ51013C-Q1 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 v2.0 protocol.

The BQ51013C-Q1 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 BQ51013C-Q1 also includes a digital controller that calculates the amount of power received by the mobile device within the limits set by the WPC v2.0 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 v2.0 specification.

特性 Features

• Qualified for automotive applications
• AEC-Q100 qualified with the following results:
• Device temperature grade 1: –40°C to +125°C ambient operating temperature

• Integrated wireless power supply receiver solution
• 93% overall peak AC-DC efficiency
• Full synchronous rectifier
• WPC v2.0 compliant communication control
• Output voltage conditioning
• Only IC required between Rx coil and output

• Wireless power consortium (WPC) v2.0 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 20V maximum input
• Low-power dissipative rectifier overvoltage clamp (VOVP = 15V)
• Thermal shutdown
• Multifunction NTC and control pin for temperature monitoring, charge complete, and fault host control