特長
- Supports Qualcomm® Quick Charge™ 3.0 and 2.0 protocols
- Proprietary secondary-to-primary digital communication and built-in decoder:
- Reduces BOM and significantly simplifies design
- Single optocoupler for all RapidCharge information
- Low no-load power consumption <10mW
- High efficiency up to 90%
- Fully protected from fault conditions
- Output overvoltage protection
- Overcurrent protection
- SmartDefender™ Smart Hiccup Technology
- Helps protect cables and connectors from excessive heat and damage by reducing average power during short circuit by at least 50%
iW1780H Functional Block Diagram
説明
The iW1780H high-performance AC/DC RapidCharge™ power supply controller pairs with Renesas' iW636 secondary-side IC to provide a simple, low cost, high-efficiency solution to support Qualcomm Quick Charge 3.0 and 2.0 protocols.
The iW1780H uses a unique secondary-to-primary digital communication link signal to receive all rapid charge commands from the iW636 RapidCharge™ secondary-side controller via a single optocoupler.
A full array of protection features integrated into the iW1780H include Renesas' SmartDefender™ advanced hiccup technology to address soft short circuits in charger cables and connectors, helping to prevent excessive heat build-up and damage.
Qualcomm® Quick Charge™ is a product of Qualcomm Technologies, Inc.
パラメータ
| 属性 | 値 |
|---|---|
| Topology Characteristic | PSR Flyback |
| Control Mode | Primary-Side Regulation Peak Current Mode DCM |
| UVLO Rising (V) | 13.8 |
| UVLO Falling (V) | 6.5 |
| VBIAS (Max) (V) | 20 |
| PWMs (#) | 1 |
| FET Driver Output Current (Max) (A) | 1.3 |
| Controller / Integrated | Controller |
| Temp. Range (°C) | -40 to +125°C |
| Qualification Level | Standard |
アプリケーション
- Qualcomm® Quick Charge™ 3.0 or 2.0 power adapters
- Rapid-charging AC/DC adapters for smartphones, tablets, other portable devices (3.6V to 12V, 1A to 3A)
