TYPEC application based on MPS MP8859 in NB-side charging scheme

Science and technology progress, electronic products are changing. Consumer electronics is not fast, it is getting smaller and smaller, and the purpose is to meet the plans of the market to meet the appetite of consumers. Now carrying a mobile device except for the battery standby time. Pay more attention to charging efficiency. And while charging, it is not only the input voltage and current. The charged end is also effective to utilize the incoming current to allocate the power supply to achieve energy, optimization efficiency. Based on such market demand, MPS launches MP8859 lifting pressure chip, which is to integrate the entire vast charge specification, and reach a product to meet all specifications of the wide pressure and stream. Functional introduction: The MP8859 is a wide input, output voltage, and can flexibly change the parameter BUCK-BOOST converter IC through I2C. Only QFN-16 (3x3mm) volume is capable of outputting a current of 3a. The picture below is a typical application line diagram of MP8859: The four low impedance MOS tubes employed in the MP8859 are formed through an external inductor, and a classic BUCK-BOOST architecture can be formed. Scene application map Product entity Exhibition board photo Solution block diagram Customer practical application line Customer actual application NB board Core technology advantage  Surrounded controllers: Most of the MP8859 can be flexibly adjusted through I2C, which greatly shortens the design time. And the IC can control the output of linear compensation of 0MV / 150MV / 300MV / 500MV for more intelligent.  Single chip is made: single chips are more complicated in design, but the chip size can be reduced, and the line or tape space can be reduced. The advantage is that the psoe parameters of the passive components are more excellent.  High efficiency, max effectiency: 97% @ (VIN = 12V, Vout = 9V), by single crystal characteristics, the switching loss in the switch can be minimized; the frequency is higher; the conduction loss is smaller. Program specifications  package: QFN-16 (3x3mm)  Communication Protocol: I2C  INPUT VOLTAGE: 2.8V ~ 22V  Output Voltage: 1 ~ 20.47V  Output Current: 3A  Power: 25 (W)  Adjustable Soft-Start: 300US / 500US / 700US / 900US  protection: OTP / OCP / UVLO / OVP  Phase Mode: AUTO PFM / PWM,  Phase SHEDDING: ASP Sourceful from big.

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