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DA9318

High Efficiency, 10 A Direct Charger

da9318_block_diagram.jpg

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.

Features

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

Benefits

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

Applications

Direct charging in:

  • Smartphones
  • Tablets
  • Battery packs
  • Li-ion powered devices

Package

WLCSP 3.62 mm × 3.78 mm

Product Briefs and Summaries
Name Date Version
DA9318 Product Brief (696.56 KB)
Schematics
Name Date Version
DA9318 Evaluation Board Schematic (529.35 KB)
DA9318 Reference Board Schematic (975.38 KB)
Software drivers
Name Date Version
DA9318 Linux drivers (930.19 KB) (Registered users only) 27/06/2017
Software Resources
Name Date Version
DA9318 SmartCanvas GUI (58.45 MB) (Registered users only) 27/06/2017 0.0.0.7
User guides and manuals
Name Date Version
DA9318 Evaluation Board (1.42 MB)
DA9318 Reference Board (1.17 MB)