High Input Voltage,3.78A Single-Cell Battery Charger with NVDC Power Path Management.
FEATURES

• High Efficiency, 1.5MHz, Synchronous 

  Buck Charger

  95% Charge Efficiency at 1A from 5V Input

  91.4% Charge Efficiency at 2A from 9V 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 2A Output

  Boost Efficiency of 93.5% at 0.5A and 94.3% at 1A

  Accurate Hiccup Mode Over-Current Protection

  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

  22V Absolute Maximum Input Voltage Rating

  Programmable Input Current Limit and 

  DynamicPower Management (IINDPM, 

  100mA to 3.1A with100mA Resolution & 3.8A)

  to Support USB 2.0 andUSB 3.0 Standards and

  High Voltage Adaptors

  Maximum Power Tracking by Programmable

  InputVoltage Limit (VINDPM) with Selectable Offset

  VINDPM Tracking of Battery Voltage

  Auto Detect USB BC1.2, SDP, CDP, DCP 

  andNon-Standard Adaptors

• High Battery Discharge Efficiency 

  with 19mΩ 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

• External Direct Charging Path Enable Output

• 9μA Ship Mode Low Battery Leakage Current

• High Accuracy

  ±0.6% Charge Voltage Regulation (8mV/Step)

  ±5% Charge Current Regulation at 2A

  ±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
优势替代
SY6970 SY6970.pdf

No.12738

FEATURES

• High Efficiency 5A 1.5MHz Buck

   ModeCharger

  Support 3.9V-14V Input Voltage Range

  ProgrammableIDPM/VDPM to

  Support the USB and Adapter

  Support USB SDP/DCP/CDP and 

  Non-Standard Adapter Detection

  3.84-4.608V Adjustable Charge Voltage

  Support Narrow VDC Power

  PathManagement

  JEITA Compliance

  ±0.5% Charge Voltage Regulation

  Accelerate Charge Time by BatteryPath

  Impedance Compensation

  Charge Status Outputs for

  LED or HostProcessor

• Maximum 2.4A 500KHz/1.5MHz 

  Boost OTGCurrent

  4.55-5.51V Adjustable OTG OutputVoltage

  Selectable OTG Output Current Limit

  Up to 2.4A OTG Current Limit on BUS

  ±1.5% Output Regulation in BoostMode

• Battery Monitor for Voltage, Temperature

  andCharge Current Measurements

• Full BATFET Control to Support ShippingMode,

  Wake Up, and System Reset

• Up to 9A Battery Discharge Current

• Safety

  Battery Temperature Sensing 

  forCharge and Boost Mode

  Battery Charging Safety Timer

  Thermal Regulation and ThermalShutdown

  Input/System Over-voltage Protection

  MOSFET Over-current Protection

• Low Battery Leakage Current

  and SupportShipping Mode

• 4mm x 4mm QFN-24 Package














PIN CONFIGUTION
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