1. Small size, easy to install
2. With battery protection, can be connected directly to the battery
3. With a variety of protection, better protection of products
4. The product technology is mature and it is supplied to many large companies.
At present this wireless charging emission chip, integrated communications, power, frequency control, charging status indicator, foreign matter detecting, WenBao, protection, over-current protection, so the peripheral device to streamline, take flexible configuration parameters, so the higher reliability, application is more flexible and concise.It is more advantageous and efficient to apply it to small size products.Wide range of applications: digital products (smartwatch, bracelet, earphone, etc.), all kinds of hand-held products that need waterproof, exquisite appearance and convenient charging.
The built-in power level USES low resistance NMOS FET technology to ensure high efficiency and low power consumption
Fraud built-in analog + digital demodulation makes communication more reliable and flexible
The light-emitting diode (LED) indicator in charge state and fault state
Inspections of foreign objects (FOD) and enhanced parasitic metal detection (PMOD) automatically detect loads
Throughout automatic power control
The energizer can be powered by 3.0v-5.6v, facilitating universal USB 5V or battery power supply and facilitating movement and selection of power sources
The aspect flexible peripheral is programmable and configured to facilitate the adjustment of different coil parameters.
Fraud protection function (OTP)
Unity under voltage protection function (UVLO)
Ponent over current protection function (OCP)
The outer circuit is simple, compact and easy to install
With the highly integrated, single chip solution,
Functional block diagram
Package size chart
Application circuit diagram
Over temperature protection
Overtemperature protection function (TSD) is set in the system to ensure the stable and reliable operation of the system.When the IC chip temperature exceeds 160 ℃, the IC will enter a state of TSD protection, and stop the current output, and when the temperature is below 140, the IC will back to work.
Under voltage protection
When the input voltage of VIN end is lower than Vuvlo (2.7v), the power switch tube inside IC is in a state of shutdown until the input voltage is higher than (Vuvlo+400Mv).
Within the system have the largest current protection 1 ocp (3. 5 a), when the SW port current exceeds 1 ocp (3. 5 a), will be forced to quickly turn off SW the NMOS tube inside the port, have over-current detection in CS port function, also can adjust the over-current protection value, the port is slow and set values will reflect the time less than 2 a, the purpose is to prevent the chip into the over temperature protection.