Texas Instruments bq501210 Wireless Power
Time：2021-04-20 Reading：116
Transmitter Manager
Texas Instruments bq501210 Wireless Power Transmitter Manager integrates the logic functions required to wirelessly transfer power to a WPC-compatible receiver. The device has the capability of delivering up to 15W. The bq501210 is a Wireless Power Consortium (WPC) v1.2 compatible device. This device is an intelligent device that periodically pings the surrounding environment for available devices to be powered and detects if a foreign metal object is present on the charging pad. The bq501210 also monitors all communication from the device being wirelessly powered and adjusts power applied to the transmitter coil per feedback received from the powered device. The device manages the fault conditions associated with the power transfer and controls the operating mode status indicator. The bq501210 uses a rail voltage control scheme instead of the traditional frequency control to adjust the amount of power delivered to the receiver.
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Features
- Qi-Compatible Wireless Power Consortium (WPC) v1.2 Solution for 15W Operation
- Faster Charging Time
- Backward Compatible With Existing 5W WPC Receivers
- 12V to 19V Input, Fixed Frequency, Rail Voltage Control Architecture
- 15V to 19V can achieve 15W
- 9V and 12V capable for HVDCP
- Dynamic Power Limiting (DPL) Allows Operation From Weak Supplies
- Conforms to WPC MP-A5 Transmitter Type Specification
- Enhanced Foreign Objection Detection (FOD) Implementation With FOD Ping that Detects Metal Objects Prior to Power Transfer
- Low Standby Power During Idle and 'Charge Complete'
- Bi-directional Communication
- Digital Demodulation Reduces Components and Simplifies Circuitry
- Support Fast Charge Operation with Compatible Receivers
- 10 Configurable LED Modes Indicate Charging State and Fault Status
Applications
- WPC v1.2 Wireless Chargers
- Smart Phones, Tablets, and Other Handhelds
- Point-of-Sale Devices
- Custom Wireless Power Applications
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bq501210EVM-756 Wireless Power Transmitter EVM
Texas Instruments bq501210EVM-756 Wireless Power Transmitter Evaluation Module (EVM) is a high-performance, easy-to-use development module for the design of wireless power solutions. The bq501210EVM-756 provides all the basic functions of a Qi-compliant, wireless charger pad. The module's 19V input, single coil transmitter (TX) enables designers to speed the development of their end-applications. This evaluation module supports WPC v1.0, WPC v1.1 and WPC v1.2 receivers (RX) and supports output power up to 15W when paired with the bq55221EVM-713. The bq501210EVM-756 also operates with any Qi WPC v1.1 RX.
Features
- WPC v1.2 15W charging capability with bq55221 receiver
- 5W solution for WPC v1.1 receivers
- 15V to 19V input and fixed operating frequency for full 15W results
- 12V input for reduced power (> 10W) solutions
- Enhanced Foreign Object Detection (FOD) with FOD ping detecting objects prior to power transfer
- WPC v1.2 FOD, WPC v1.1 FOD and WPC v1.0 Parasitic metal Object Detection (PMOD)
- Transmitter-coil mounting pad providing the correct receiver interface
- Compact power section design using the bq500100 NexFET power stage
- Wurth 760 308 141 transmitter coil with no magnet
- LED and audio indication of power transfer
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Transmitter Solution Simplified Diagram
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User's Guide
