Yingjixin Technology's first-level agent is IP5518H wireless charging core IP6503S. IP6523S

TWS charging box chip

Multifunctional power management SoC integrating MCU, boost converter, lithium battery charging management, and battery power indicator——IP5528

realme Buds Air 5 Pro true wireless noise-canceling headphones have adopted IP5528

> Only one inductor is needed to achieve the buck-boost function, supporting low-cost inductors and capacitors

> The synchronous boost system provides a rated output current of 400mA, with a conversion efficiency as high as 93%. At light load, it automatically enters sleep mode and the quiescent current drops to 15µA.

> Adopts switching charging technology to provide rated 1A charging current and charging efficiency as high as 90%. Built-in chip temperature protection and input voltage intelligently adjust charging current.

> Built-in 12bit ADC can accurately measure battery voltage and current. Supports 1/2/3/4 LED power display and digital power display

Multifunctional power management SoC integrating boost converter, lithium battery charging management, and battery power indicator——IP5518H

> Built-in synchronous rectification boost DC-DC, built-in power tube, providing 400mA output current, and boost efficiency as high as 93%. The DC-DC converter has a switching frequency of 1.0MHz and can support low-cost inductors and capacitors.

> Linear charging provides 500mA charging current, and the charging current can be flexibly configured. Built-in chip temperature protection and input voltage intelligently adjust charging current.

> It can realize the independent storage detection of TWS dual earphones. After detecting that the earphones are in the inventory, it will automatically enter the earphone charging mode. After the earphones are fully charged, they will automatically enter the sleep state. The quiescent current can be reduced to as low as 20uA. The headset can be flexibly customized to determine the full saturation current, and the full current detection accuracy is as high as 1mA.

> Built-in 8bits MCU, 4/3/2/1 LED or 188 digital tube power display can be flexibly customized. Built-in 12bits ADC can accurately calculate battery power.

IC model package Charging current (mA) Discharging current (mA) MCU/ROM Independent detection of left and right ears Display NTC Standby state Wireless charging and reception Input withstand voltage datasheet

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IP5528 QFN28(0404) 1000 400 32bits CPU

16KBytes MTP √ 1~4 LED, digital tube, UART communication √ 5V/3.0/0V N 15V link -

IP5333 QFN24(0404) 1000

1000

8bits CPU

12KBytes OTP √ 1~4 LED, digital tube, UART communication √ 5V/3.0/0V N

15V

link -

IP5518H QFN24(0404) 500 300 8bits CPU

16KBytes MTP √ 1~4 LED, digital tube, UART communication √ 5V/BAT/2.4V/0V N 30V link -

IP5518V QFN24(0404) 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube, UART communication √ 5V/BAT/2.4V/0V N 30V link -

IP5518 QFN24(0404) 500 300 8bits CPU

16KBytes OTP √ 1~4 LED, digital tube, UART communication √ 5V/BAT/2.4V/0V N 15V link -

IP6818H QFN24(0404) 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube, UART communication √ 5V/BAT/2.4V/0V √ 30V link -

IP6818 QFN24(0404) 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube, UART communication √ 5V/BAT/2.4V/0V √ 15V link link

IP6816 QFN16(0404) 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube √ 5V/BAT/2.4V/0V √ 15V link link

IP5516 QFN16(0404) 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube √ 5V/BAT/2.4V/0V N 15V link link

IP5513 SOP16 500 300 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube √ 5V/BAT/2.4V/0V N 15V link link

IP5513A SOP16 500 600 8bits CPU

12KBytes OTP √ 1~4 LED, digital tube √ 5V/BAT/2.4V/0V N

15V

- -

IP5521 QFN16(0303) 500 300 N √ 1~4 LED √ 5V/BAT N 30V link -

IP5416V SOP8 500 200 N N 1/2 LED N 5V/2.4V N 30V link -

IP5416 SOP8 500 200 N N 1/2 LED N 5V/2.4V N 12V link -

IP5416P SOP8 300 200 N N 1/2 LED N 5V/2.4V N 12V link -

IP5413T SOP8 500 200 N N 1/2/4 LED N 5V/2.4V N 12V link -

IP5413V SOP8 500 200 N N 1/2/4 LED N 5V/2.4V N 30V link -

IP5413P SOP8 300 200 N N 1/2 LED N 5V/2.4V N 12V link -

IP5303T_BT ESOP8 500 1000 N N 1/2 LED N 5V/2.4V N 11V

IP5427 SOP8 1000 300 N N 1/2/4 LED N 5V/2.4V N 12V link -

IP5428 SOP8 1000 300 N N 1/2 LED N 5V/2.4V N 12V link -