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100W Digital Zero Voltage Switching RapidCharge™ AC/DC Controller
Pairs with iW709 to Create a Complete Solution for High-Power Density USB PD 3.0 Chargers and Travel Adapters
The iW9801 digital AC/DC controller integrates Dialog’s patented adaptive Zero Voltage Switching (ZVS) technology to enable ultra-small, light-weight, low-cost and easily portable power supplies for smartphones, tablets, laptops, power tools and other portable products. The device operates at high switching frequencies, which allows for a much smaller transformer and passive components, and supports USB Power Delivery 3.0 with PPS, along with other RapidCharge protocols at output powers up to 100W.
The iW9801 pairs with Dialog’s iW709 secondary-side IC, which integrates fast charge protocol support, USB Type-C® control and synchronous rectification FET control. The combined chipset offers a complete high power density AC/DC charging solution, efficiencies up to 94% and advanced protection features to enable high power charging with safe, cool operation in a small physical charger size.
Learn more about Dialog's patented adaptive ZVS technology.
High switching frequency
- Lighter, smaller transformer
- Smaller passive components for easier EMI control
Patented adaptive ZVS control for high efficiency and low EMI
- Efficiently recycles energy to minimize heat generation
- Up to 94% efficiency
- Eases thermal management and reduces heatsink size
User-configurable ZVS timing optimizes performance for different power MOSFETs
Adaptive, seamless multi-mode control (MMC) improves efficiency and eliminates audible noise
Compatible to drive GaN devices
AC unplug detection and X-cap discharge
Rich protection for:
- Over-voltage (OVP)
- Over-current (OCP)
- User-configurable over-temperature
- VSENSE/ISENSE short
- Output short
- Extra primary-side OCP & OVP if optocoupler fails
Intelligent, eco-friendly low standby power < 20mW
Supports USB Power Delivery 3.0 with PPS (iW709)
Hardwired state-machine solution prevents hacking of fast chargers. Learn more
Low-Cost, Ultra-Small, Light-Weight RapidCharge AC/DC Power Supplies and Adapters for Smartphones, Tablets, Laptops, Power Tools and Other Portable Devices Using USB PD