SY6969FQFQ

l  3.5V to 25V Input Operating Voltage

l  Charge 1s to 4s Battery from Wide Range of Input Source

l  Drive Bi-Direction 4-switch Buck-Boost with Single Inductor

l  800kHz or 1.2MHz Programmable Switching Frequency

l  SMBus Controls

--    Battery Charge Voltage (1.024V - 19.2V)

--    Minimum System Voltage (1.024V - 16.128V)

--    OTG Output Voltage (3V - 20.8V)

--    Battery Charge Current (64mA - 8.128A)

--    Input Voltage Limit for DPM (3.2V - 19.52V)

--    Input Current  Limit for DPM (50mA - 6.4A)

--    OTG Output Current Limit (50mA - 6.35A)

l  High Accuracy for Voltage/Current Regulation

l  Accurate Power/Current Monitor and Comprehensive PROCHOT for CPU Throttling

l  ILIM_HIZ Pin to Set Input Current Limit

l  NVDC Power Path Management

--    Battery Supplements System when Adapter is Fully-Loaded

--    Battery MOSFET (BATFET) Ideal Diode Operation in Supplement Mode

l  Pass Through Mode (PTM) for System Power Efficiency Improvement

l  When System is Powered by Battery Only, Vmin Active Protection (VAP) Mode Supplements System from Input Capacitors during System Peak Power Spike

l  Support Battery LEARN Function

l  Adaptive Input Current Limit (AICL) to Extract Max Input Power

l  Host Control Interface for Flexible System Configuration

l  Integrated ADC to Monitor Voltage, Current and Power

l  Thermal Shutdown Protection

l  Input, System, Battery Overvoltage Protection

l  Input, MOSFET, Inductor Overcurrent Protection

l  Compact Package: QFN4x4-32

The SY6969F is a switching mode battery charger controller. It can drive 4-switch synchronous Buck-Boost converter to support the wide input range and multi-cell Li-ion and Li-polymer batteries. The IC includes full protections during charging process for safety.

The SY6969F can operate in Narrow-VDC(NVDC) mode. With this feature, the system voltage will not drop below setting minimum system voltage even though the battery is depleted or removed. Charge current will reduce to pre-charge level during NVDC mode. The IC also features Dynamic Power Management (DPM) to avoid AC adapter overloading.

Besides charging the battery, SY6969F can realize USB On-The-Go (OTG) function. Battery can reversely offer energy to the input port.