SY8810 Charging Box SoC Solution of Thinkplus Semiconductor Enters the Supply Chain of NetEase
NetEase Cloud Music is a very popular music platform in China. Relying on its huge online user group. NetEase Cloud Music has launched a series of audio hardware products. When NetEase Cloud Music Oxygen True Wireless Headphone MINI is disassembled by http://www.52audio.com/, it is found that the charging box of this headset uses Thinkplus semiconductor Bluetooth headset smart charging warehouse solution SY8810, which has built-in lithium battery charging and boosting Circuit, and has two independent charging detections, one chip can handle the charging compartment, no external single-chip microcomputer is required.
The charging case of NetEase Cloud Music Oxygen True Wireless Earphone MINI is a flip-top design, and the earphone has a conventional magnetic design for easy access. There are indicators and openings on the front of the charging box for easy observation and use.
Disassemble the charging box and take out the internal circuit board. On the circuit board, Thinkplus semiconductor SY8810 and a chip inductor are responsible for battery charging and discharging management, and the Hall element in the upper left corner detects the open state. There are no components on the back of the circuit board and the components are very streamlined.
Thinkplus semiconductor SY8810 is a single-chip Bluetooth headset charging box solution. The chip integrates synchronous buck charging and synchronous boost output. The charging current and output cut-off current can be set by an external resistor. SY8810 has two built-in independent discharge outputs that can be targeted The left and right ears perform load detection and output respectively. SY8810 is very suitable for Bluetooth headset charging bin applications, with extremely streamlined peripheral components, simplifying the development of charging bins and reducing production costs.
Thinkplus semiconductor SY8810 standby current is only 5μA, which can provide a long standby time for the charging bin. SY8810 can provide the battery with a maximum charging current of 1A, suitable for small to large capacity 18650 battery applications. The switch has high charging efficiency, low heat generation, and the charging current can be set by an external resistor. At the same time it also has a path management function, giving priority to discharge output. The built-in charger of SY8810 supports 4.2/4.35V battery applications, and the internal integrated input overvoltage protection and NTC temperature protection. Synchronous rectification boost output is 5V, low output current still has high efficiency. Support load access recognition, load current detection, and adjustable shutdown current. SY8810 has a very complete protection function, supports 1-4 LED display, supports button wake-up and Hall element detection, supports long press the button to enter the transportation mode or send the pairing code function.
Thinkplus semiconductor SY8810 adopts 16pin QFN3*3 package, with simplified peripheral components, it can be used in a small space, very suitable for the use of Bluetooth headset smart charging compartment.