I2C Controlled 3A Single-Cell Battery Charger with High Input Voltage Capability and Narrow Voltage DC (NVDC) Power Path Management.
FEATURES

• High Efficiency, 1.5MHz, Synchronous Buck Charger

  93% Charge Efficiency at 1A from 5V Input

  91% Charge Efficiency at 2A from 5V Input

  Optimized for USB Voltage Input (5V)

  Selectable PFM Mode for Light Load Efficiency

• USB On-The-Go (OTG) Support (Boost Mode)

  Boost Converter with up to 1.2A Output

  Boost Efficiency of 93.5% at 0.5A and 92.2% at 1A

  Accurate Hiccup Mode Over-Current Protection

  Soft-Start Capable with up to 500μF Capacitive Load

  Output Short Circuit Protection

  Selectable PFM Mode for Light Load Operations

• Single Input for USB or High Voltage Adapters

  3.9V to 13.5V Operating Input Voltage Range

  20V Absolute Maximum Input Voltage Rating

  Programmable Input Current Limit and DynamicPower 

  Management (IINDPM, 100mA to 3.2A with100mA

  Resolution) to Support USB 2.0 and USB 3.0Standards

  and High Voltage Adaptors

  Maximum Power Tracking by Input Voltage

  Limit upto 5.4V (VINDPM)

  VINDPM Tracking of Battery Voltage

• High Battery Discharge Efficiency with 28mΩ Switch

• Narrow Voltage DC (NVDC) Power Path Management

  Instant-On with No or Highly Depleted Battery

  Ideal Diode Operation in Battery Supplement Mode

• Ship Mode, Wake-Up and Full System Reset 

  Capabilityby Battery FET Control

• Flexible Autonomous and I2C Operation 

  Modes forOptimal System Performance

• Fully Integrated Switches, Current Sense 

  andCompensation

• 10μA Ship Mode Low Battery Leakage Current

• High Accuracy

  ±0.5% Charge Voltage Regulation

  ±5% Charge Current Regulation at 1.5A

  ±10% Input Current Regulation at 0.9A

• Safety

  Battery Temperature Sensing (Charge/Boost Modes)

  Thermal Regulation and Thermal Shutdown

  Input Under-Voltage Lockout (UVLO)

  Input Over-Voltage (ACOV) Protection

PIN CONFIGUTION
CROSS
SY6974B SY6974B.pdf

No.12745

FEATURES

• High Efficiency 3A 1.5MHz Buck Mode

  Charger

  Support 3.9V-13.5V Input Voltage Range

  Programmable IDPM/VDPM to Support the

  USB and Adapter

  3.856V-4.624V Adjustable Charge Voltage

  Support Narrow VDC Power Path

  Management

  JEITA Compliance

  ±0.5% Charge Voltage Regulation

  Charge Status Outputs for LED or Host

  Processor

• Maximum 1.2A 1.5MHz Boost OTG Current

  4.85V-5.3V Adjustable OTG Output

  Voltage

  Selectable OTG Output Current Limit

  ± 1.5% Output Regulation in Boost Mode

  Soft-Start up to 500μF Capacitive Load

  Constant Current (CC) Limit

• Full BATFET Control to Support Shipping

  Mode, Wake up, and System Reset

• Safety

  Battery Temperature Sensing for Charge and

  Boost Mode

  Battery Charging Safety Timer

  Thermal Regulation and Thermal Shutdown

  Input/System over-Voltage Protection

  MOSFET over-Current Protection

• Low Battery Leakage Current and Support

  Shipping Mode

• 4mm x 4mm QFN-24 Package












PIN CONFIGUTION
Site Map