Overview
Description
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-C™ cables for charging currents up to 6A. The peak efficiency of DA9318 is 98%. With a maximum 8A charging current, the DA9318L variant can provide 35W of charging power, whereas the DA9318M variant provides 10A of output current and 44W of charging power.
Benefits
- Safe high-voltage direct charging
- Automatic shutdown in fault condition
- Travel adapter detection
- No inductors
- No input current ripple
- <1mm component height
- Small PCB area
- Standard 3A Type-C cable
- Built-in fault protection
Features
- 8A output current (DA9318L)
- 10A output current (DA9318M)
- 98% efficiency at 3A
- 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
- Package: WLCSP 3.62mm × 3.78mm
Comparison
Applications
- Direct charging in:
- Smartphones
- Tablets
- Battery packs
- Li-ion powered devices
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 709 KB | |
| Manual - Development Tools | PDF 1.26 MB | |
| Manual - Development Tools | PDF 1.58 MB | |
| Schematic | PDF 147 KB | |
| Schematic | PDF 236 KB | |
| Product Brief | PDF 726 KB | |
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Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| 64-WLCSP | Stack | ||
| 64-WLCSP | Stack |
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