- Products
- Power Management
- Connectivity
- Audio
- Sensors
- Lighting
- Custom Mixed-Signal ICs (ASICs)
- Power Conversion
- Power Switching
- Memory
- Silicon IP
- GreenPAK Configurable Mixed-Signal
- Timing
- Communications
- IO-Link
- Industrial and Automotive ASICs
- Industrial Edge Computing
- IOX Expansion Module
- IzoT Commissioning Tool (CT)
- IzoT Net Server
- IzoT SDK 2
- IzoT ShortStack SDK
- LNS DDE Server
- LON Upgrade
- LonScanner FX Protocol Analyzer
- Smart Edge Platform
- SmartServer IoT
- SmartServer IoT™ Partner Program
- SmartServer™ IoT Edge Server
- U10 USB Network Interface
- U20 USB Network Interface
- U60 DIN USB Expansion Modules
- U60 FT USB Network Interface Module
- U70 PL-20 USB Network Interface
- Current Control
- Motor Control
- Display
- Modules
- Longevity Program
- Product Selector
- Document Search
- Applications
- Application Solution Diagrams
- Connected Health
- Connected Consumer
- Connected rechargeable E-cigarette
- True Wireless Stereo
- USB Type-C ANC Headset
- Beacon, Tracker, Findable
- DECT Ambient Noise Cancellation (ANC) Headset
- Rechargeable E-Cigarette
- Game Controller
- Feature-rich Rechargeable E-Cigarette
- Rechargeable Game Controller
- Bluetooth ANC Headset
- Toothbrush
- Electric MP3 toothbrush
- Voice RCU
- Animal Tracker / Location Tracker
- POS Terminals
- Wall-to-Battery & Direct Charging
- Smart Home
- Smart Appliances
- Industrial & Infrastructure
- Smart Lighting
- Wearables
- Configurable Mixed-signal IC Solutions
- Smart Home
- Home Appliances
- Networking
- Automotive
- Industrial
- Smart Meters
- SoC PMIC Solutions
- Communications
- Connected Medical
- Transportation
- Application Solution Diagrams
- Support
- Company
You are here
iW1676
iW1676
PrimAccurate™ Off-Line Digital PWM Controller in a SOT-23 Package
A team of engineers is ready to answer your questions
< 30mW standby power
The iW1676 is a high performance AC/DC controller designed to drive a low-cost BJT power switch in peak current mode PWM flyback power supplies up to 5W. Ideal for power adapters for smartphones, the iW1676 integrates Dialog’s PrimAccurate™ digital primary-side control, eliminating the need for the secondary-side optocoupler, reducing component count and solution cost.
The iW1676 easily meets the US DoE’s external power supply standard and the EU’s Code of Conduct, version 5, tier 2 standard, with no-load power consumption less than 30mW. Additional features include Dialog's proprietary EZ-EMI™ technology, quasi-resonant control for optimal efficiency at heavy loads, cable and connector voltage drop compensation options, full protection from fault conditions and tiny packaging.
Features
- Easily Meets DoE External Power Supply and EU Code of Conduct, Version 5, Tier 2 Standards
- Less than 30mW No-Load Power Consumption
- Low 1.7uA Start-Up Current
- 64kHz PWM Switching Frequency
- Voltage Offset Compensation for Voltage Loss in Cables and Connectors (4 Options)
- PrimAccurate™ - Primary-Side Control, No Optocoupler Needed
- Intrinsically Low Noise Solution - No Audible Noise Over Entire Operating Range
Features
- Quasi-resonant Control for Optimal Efficiency
- EZ-EMI™ Design to Easily Meet Global EMI Specifications
- Fast Dynamic Load Regulation
- Tiny SOT-23-5 Package
- Fully Protected from Fault Conditions
- Over-Temperature Protection
- Output Over-Voltage and Over-Current
- Input Undervoltage Protection
- Sense-Resistor Short Circuit Protection
Applications
- Power Adapters for Portable Electronics
- Consumer Electronics Power Supplies
- Linear AC/DC Power Supply Replacement
Block Diagrams
Typical Applications Diagram
Functional Block Diagram
Resources
| Date | Version | |
|---|---|---|
| iW1676 Datasheet | 12/02/2020 | Rev. 1.7 |
| Date | Version | |
|---|---|---|
| What is Digital Power White Paper |
For technical support or information on how to buy, contact us directly.
Need technical help?
Visit our support web site to:
- Get help from Dialog experts online.
- Search the forums.
- Access software, drivers, tools & utilities.