TOKYO–Toshiba Corporation’s (TOKYO: 6502) Storage & Electronic Devices Solutions Company today announced that a wireless power transmitter system using its “TC7718FTG” 15W wireless power transmitter IC has been certified as Qi[1] v1.2 EPP (Extended Power Profile) compliant by the Wireless Power Consortium (WPC). The system adopts MP-A2[2], which allows a simple system configuration, and is the industry’s first[3] Qi-certified MP-A2 transmitter system.
Connected to a microcontroller, “TC7718FTG” realizes a wireless power transmitter system compliant with Qi standard. Toshiba’s original cutting-edge CD-0.13 process realizes a small package and high efficiency, making system integration easy while securing a small footprint. A 15W wireless transmitter formed with the new IC will recharge devices quickly, at a rate equal to or shorter than wired chargers. The IC is suitable for use in wide range of applications including mobile devices, such as smartphones and tablets, and industrial devices.
A wireless power transmitter system using “TC7718FTG” is compatible with a 5W receiver system using Toshiba’s 5W receiver IC “TC7764WBG”, and a 10W receiver system using its 10W receiver IC “TC7765WBG”, both of which are in mass production. In combination with a 15W receiver IC “TC7766WBG” already certified as the Qi v1.2 EPP compliant, the wireless power system can receive up to 15W.
Toshiba is the industry’s first[3] company to provide Qi v1.2 EPP-certified products for both 15W wireless power transmitters and receivers.
Main Features
- WPC Qi v1.2 compliant (in combination with a microcontroller)
- Full-bridge gate driver (also compatible with half-bridge): 1ch
- Built in LPF[4] for recovery of ASK signal
- Built in LDO (3.3V output)
Application
Charging stand for mobile devices (smartphones, tablets) and industrial devices etc.
Main Specifications
| Part Number | TC7718FTG |
|---|---|
| Transmitter/Receiver | Transmitter |
| Transmission Method | Electromagnetic induction |
| Operating voltage range | 4.5V to 25V |
| Operation Frequency | 110kHz to 205kHz |
| Package | P-VQFN36-0505-0.40 |
[1] Qi: The international standard for wireless charging defined by WPC.
[2] MP-A2: A wireless power transmitter system defined by WPC that uses a 12V single coil.
[3] As of September 28, 2016, Toshiba survey.
[4] LPF (Low Pass Filter): A filter that passes signals with a frequency lower than a certain cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency.
