SY6976WFS

●          Support 3.9V-14V Input Voltage range

●          Programmable IINDPM/VINDPM to support the USB and adapter

●          Support USB SDP/DCP/CDP/HVDCP, Non-standard Adapter, PD and UFCS

●          3.84-4.856V Adjustable Charge Voltage

●          Support Narrow VDC Power Path Management

●          JEITA Compliance

●          ±0.5% Charge Voltage Regulation

●          ±4% at 1.5A Charge Current Regulation

●          Accelerate Charge Time by Battery Path impedance Compensation

●          3.9-5.5V Adjustable OTG Output Voltage

●          Selectable OTG Output Current Limit

●          Up to 2.5A OTG Current Limit on BUS

●          ± 2% Output Regulation in Boost Mode

●          Soft-Start Up to 500-µF Capacitive Load

●          Maximum 2A Boost LED Flash Driver

●          Full BATFET Control to Support Shipping Mode, Wake Up, and System Reset

●          Up to 12A Battery Discharge Current

●          11 channels 12-bits ADC for  Monitor

•        VBAT, VSYS

•        VBUS, ICHG

•        TSBUS, TSBAT

•        VAC, IBUS, TDIE, BATID, BATSNS

●          Package: WLCSP 3.2mm×2.8mm -42

The SY6976 is highly integrated power management unit for smart phone and other portable devices. The device includes a fully-integrated switching battery charger with system power path management for single cell Li-Ion and Li-polymer battery, various charging protocols such as BC1.2/ HVDCP/ PD3.0(PPS)/ UFCS, and dual-channel LED driver. Its low impedance power path optimizes switching conversion efficiency, reduces battery charging time and extends battery life during the discharging mode. The I2C serial interface with battery charging, charging protocols and LED settings makes it flexible for host to make system settings in different applications.

The device supports a wide range of input sources, including USB SDP/DCP/CDP/HVDCP, high-power DC adapter and non-standard adapter. SY6976 integrates the detection circuit. SY6976 meets USB On-the-Go operation power rating specification by supplying 5.1V (programmable) on BUS with current limit up to 2.5A (programmable).

The integrated power path management ensures the system power supply and regulates the system voltage above 3.5V minimum system voltage (programmable) with high priority, even when battery voltage is low. With this structure, it could automatically reduce the charging current to support system load first when input source is over-loaded. Further, if system load still cannot be met, then the power path could make BATFET enter supplement mode, with the battery and the adapter supplying power to the system at the same time.

The SY6976 could automatically start and complete a fully charging cycle in default mode. The whole charging cycle includes three phases: pre-charge, constant current charge and constant voltage charge. The device automatically terminates the charge when the charge current is below the preset termination current in constant voltage phase. Furthermore, when battery voltage discharged below recharge threshold, it will automatically start another charging cycle.

The SY6976 also integrates dual-channel LED driver that provides a high level of adjust-ability with a small solution size. The device utilizes a synchronous boost converter to provide power to the dual 2A constant current LED sources. The high resolution level current sources provide the flexibility to adjust the current ratios. An adaptive regulation method ensures the current sources remain in regulation and maximizes efficiency.

SY6976 are available in WLCSP-42 package.