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High Efficiency, 10 A Direct Charger

Current doubler delivering up to 10 A charging current, with efficiency of up to 98 % and powering up to 44 W

The DA9318 is optimized to handle high charging currents and at the same time ensure the safety of the battery and the system. It operates together with a main charger, which handles the pre-charge and constant voltage charging duties. 

The current doubling is achieved with a high-efficiency capacitive divider that provides an output voltage of VIN/2, which allows the use of standard USB Type-CTM cables for charging currents up to 6 A. The peak efficiency of DA9318is 98 %. With maximum 8 A charging current, DA9318L variant can provide 35 W charging power, whereas the DA9318M variant provides 10 A output current and 44 W charging power.


  • 8 A output current (DA9318L)
  • 10 A output current (DA9318M)
  • 98 % efficiency at 3 A
  • 5 % current sense accuracy (DA9318L)
  • 10 % current sense accuracy (DA9813M)
  • Reverse and forward current protection in IDLE mode
  • Safe high-voltage direct charging
  • Safety timer and watchdog
  • 8-bit ADC to measure voltage and current at the input and output, as well as temperature
  • Junction temperature monitoring
  • I2C compatible 2-wire interface


  • Safe high-voltage direct charging
  • Automatic shutdown in fault condition
  • Travel adapter detection
  • No inductors
  • No input current ripple
  • <1 mm component height
  • Small PCB area
  • Standard 3 A Type-C™ cable
  • Built-in fault protection


Direct charging in:

  • Smartphones
  • Tablets
  • Battery packs
  • Li-ion powered devices
WLCSP 3.62 mm × 3.78 mm

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