High-precision switch charger: 1.5MHz switching frequency, supports 1uH inductor; ±0.5% constant voltage charging accuracy (adjustable in 10mV/step); 5% constant current charging accuracy @1.5A; charging cutoff current accuracy 20mA±2mA; maximum support for 2A charging, charging efficiency >92%@1A; supports configurable Top-off charging function; BATFET impedance 30mΩ Low static power consumption boost: no-load output chip total power consumption less than 500uA; maximum output current 1.2A, output voltage 4-stage adjustable NVDC path management: supports immediate startup with no battery/low battery voltage system power supply; supports input current limiting and input voltage limiting (DPM) functions Typical static power consumption 10uA, shipmode power consumption less than 2uA Complete protection functions: 4-stage configurable input overvoltage protection; battery overcurrent/overvoltage/undervoltage protection; boost output overvoltage/overcurrent protection scheme; thermal adjustment and thermal shutdown protection Flexible reset function: supports configurable system power-down reset functions such as long-press button/watchdog/VBUS insertion

The SY6202 is a universal, low-power, high-precision NVDC architecture switch charger suitable for portable wearable battery devices such as wireless earphones and smartwatches. The chip integrates a charging module and a boost module, and includes comprehensive protection functions.
The SY6202 is optimized for fast charging applications with small-capacity lithium batteries. It supports a maximum charging current of 1.5A and a minimum charging cutoff current of 10mA. Meanwhile, the chip's standby power consumption is less than 13uA, and less than 2uA in ship mode.
The SY6202 can flexibly configure charging parameters through the I2C communication interface. It allows for adjustment of the constant voltage charging voltage in 10mV increments and the constant current charging current in 20mA increments.
The SY6202 integrates comprehensive battery protection functions, including JEITA charging standard support, charging timeout, and battery overvoltage/overcurrent/undervoltage protection.
The SY6202 integrates a reverse boost output function to the PMID pin. The boost supports a maximum load of 1.2A and high efficiency under light load; power consumption is less than 500uA when the output is unloaded.
The SY6202 uses a 2mm*2mm CSP20 package with a 0.4mm pitch.