Features
- AccuSwitch™ - Integrated 800V BJT
- 3.5W output power range capable
- 64kHz PWM switching frequency
- Meets global energy efficiency standards
- Less than 100mW no-load power consumption
- Low 8µA start-up current
- PrimAccurate™ - Primary-side control, no optocoupler needed
- Quasi-resonant control for optimal efficiency
- EZ-EMI® design to easily meet global EMI specifications
- Fast dynamic load regulation
- Fully protected from fault conditions
- Output overvoltage and overcurrent
- Input undervoltage protection
- Sense-resistor short circuit protection
Description
The iW1810 is a high-performance AC/DC converter with an integrated 800V power bipolar junction transistor (BJT). Capable of 3.5W maximum output power, the iW1810 operates in a quasi-resonant mode to optimize efficiency and it also incorporates a power-saving mode that enables less than 100mW of power consumption at no load, meeting global energy efficiency standards and making it ideal for applications such as energy standard-compliant home appliances.
The iW1810 also incorporates Renesas' proprietary PrimAccurate™ primary-side digital control algorithms that enable a fully isolated solution without the need for an optocoupler, reducing cost and solution size while greatly improving reliability. Additional functionality includes full protection from over-temperature, overvoltage and overcurrent conditions, as well as EZ-EMI™ design techniques to allow for a solution that easily meets global EMI specifications.
For improved performance, see the iW1812 AccuSwitch™ off-line digital PWM converter page.
Parameters
| Attributes | Value |
|---|---|
| Topology Characteristic | PSR Flyback |
| Control Mode | Primary-Side Regulation Peak Current Mode DCM |
| UVLO Rising (V) | 10.5 |
| UVLO Falling (V) | 4.1 |
| VBIAS (Max) (V) | 16 |
| PWMs (#) | 1 |
| Switching Frequency (KHz) | 64 - 64 |
| Controller / Integrated | Controller |
| Temp. Range (°C) | -40 to +125°C |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Lead Count (#) | Pitch (mm) |
|---|---|---|
| SOIC-7 | 7 | 1.27 |
Applications
- Smart meters
- Motor control
- Industrial power supplies
- Home automation and appliances
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