Overview
Description
The iW9801 digital AC/DC controller integrates Renesas' patented adaptive Zero Voltage Switching (ZVS) technology to enable ultra-small, lightweight, 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 and 3.1 EPR with Programmable Power Supply (USB PD PPS), along with other RapidCharge protocols at 100W+ output power.
The iW9801 pairs with Renesas' iW709 secondary-side IC, which integrates fast charge protocol support, USB Power Delivery 3.0 Type-C control, and synchronous rectification FET control. It also pairs with Renesas' iW780 secondary-side IC, which supports USB PD 3.1 EPR. 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.
The iW9801 also pairs with the iW780 for USB PD 3.1 for single- and multi-port adapters up to 240W.
The iW9801 is compatible with Transphorm GaN technology.
Learn more about Renesas' patented adaptive ZVS technology.
Features
- 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:
- Overvoltage (OVP)
- Overcurrent (OCP)
- User-configurable over-temperature
- Shoot-through
- Brown-in/Brown-out
- VSENSE/ISENSE short
- Output short
- Extra primary-side OCP and OVP if the optocoupler fails
- Intelligent, eco-friendly low standby power <20mW
- Supports USB Power Delivery 3.0 with PPS (iW709)
- Pairs with the iW780 for USB PD 3.1 EPR for single- and multi-port adapters up to 240W
- Compatible with Transphorm GaN devices
- Hardwired state-machine solution prevents hacking of fast chargers. To learn more, see our "RapidCharge™ Controllers Prevent Fast Charger Hacking" blog
Comparison
Applications
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 705 KB | |
| Product Brief | PDF 526 KB | |
| White Paper | PDF 389 KB | |
| Application Note | PDF 799 KB | |
| Other | ZIP 3.94 MB | |
| Other | ZIP 6.78 MB | |
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Design & Development
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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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