Wireless charging technology is derived from wireless power transmission technology. Wireless charging, also known as inductive charging, non-contact inductive charging, is the use of near-field sensing, that is, inductive coupling, by a power supply device (charger) to transfer energy to a powered device that uses the received energy pair The battery is charged and used for its own operation. Since the charger and the electric device transmit energy by inductive coupling, there is no wire connection between the two, so the charger and the electric device can be exposed without conductive contacts.
Toshiba Corporation today announced the launch of its wireless charging receiver IC, the "TC7766WBG", which is certified to meet the Qi[1] v1.2 EPP (Extended Power Distribution) standard established by the Wireless Charging Alliance (WPC). The TC7766WBG is the only 12W receiver IC certified by Qi in the industry [2].
The TC7766WBG is also the smallest package [2] in all Qi V1.2 compliant single-chip receivers, making it easy to implement a compact Qi v1.2 receiver system. In addition, the TC7766WBG is accessed through the I2C interface [3], which provides flexible control and system design.
Toshiba has two receivers that comply with the Qi v1.2 standard: TC7766WBG-M000 (15W) and TC7766WBG-M010, all meeting the 5W reference power distribution. Both ICs are produced in large quantities.
Main characteristics· Comply with WPC Qi v1.2 standard
· Maximum output power: 15W
· Maximum output current: 1.7A
· Output voltage setting: 5V to 14V
· Multiple protection features
· Compatible with I2C interface [3]: The receiving host controller can exchange information with compatible transmitters and can access the operating status register of TC7766WBG through the I2C interface. For example, this allows the user to obtain a wireless charging status notification in the display of the mobile device.
Application fieldMobile devices (smartphones, feature phones, tablets), industrial equipment, etc.
Main specifications
[1] Qi Standard: The international standard for wireless charging developed by the Wireless Charging Alliance.
[2] LPF (Low Pass Filter): A filter that allows a signal with a frequency below a certain cutoff frequency to pass while attenuating a signal with a frequency higher than the cutoff frequency.
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