Yingjixin IP2738 chip made a stunning appearance | Heisener Electronics
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Yingjixin IP2738 chip made a stunning appearance

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     The protocol chip of this charger adopts Yingjixin IP2738, and both interface outputs are controlled by it. IP2738 is a dual-channel protocol chip that supports dual-port 18-140W fast charging applications. It has independent feedback control and independent USB PD control. It is equivalent to integrating two IP2736s into one chip. The fast charging specifications are the same as IP2736. .

     Yingjixin IP2738 adopts QFN32 package, which is small in size and simple in periphery, which can simplify the design of the protocol circuit of the charger. Small footprint packages meet a variety of design applications. The chip IO pin supports PFC control to achieve lower standby power consumption.

 IP2738 supports dual-port USB PD3.1 28V EPR gear, and supports PD3.0/PPS/QC/PE+/FCP/SCP/AFC/UFCS and other rich and comprehensive fast charging protocols, and the compatibility is very good. Thanks to the support of various feedback forms, IP2738 can be used with switching power supplies with circuit architectures such as QR, ACF, and LLC for fast charging protocols such as PD, and can also be used with buck-boost circuits for high-power output scenarios.

   Yingjixin IP2738 protocol chip integrates voltage reference, integrates programmable voltage/current loop control, integrates low-end current detection inside the chip, and the output supports line loss compensation. It supports optocoupler feedback for power adapter applications, supports DC-DC change of output voltage through I2C and FB control, and supports applications such as car chargers, energy storage power supplies, chargers, and mobile power supplies.

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