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Rapid Charge™ AC/DC Digital Controller


Supports Qualcomm® Quick Charge™ 3.0, 2.0 Protocols; companion to the iW636

The iW1780H high performance AC/DC RapidCharge™ power supply controller pairs with Dialog’s 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 via a single optocoupler.

A full array of protection features integrated in the iW1780H include Dialog’s 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.

Lifecycle status

● Active


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 Rapid Charge Information

Low No-Load Power Consumption <10mW

High Efficiency up to 90%

Fully Protected from Fault Conditions 

Output Over-Voltage Protection

Over-Current 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%


Qualcomm® Quick Charge™ 3.0 or 2.0 Power Adapters

Rapid-charging AC/DC Adapters for Smartphones, Tablets, Other Portable Devices (3.6V-12V, 1A-3A)

Block Diagrams


Typical applications diagram


Functional block diagram

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

Sample Request Form

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Product Briefs and Summaries
Name Date Version
iW1780H Product Summary (401.47 KB) 16/09/2016 1.0
Name Date Version
iW1780H Datasheet (1.17 MB) (Registered users only) 08/11/2017 1.11