Features
- Integrated with 700V, 150mΩ SuperGaN FET
- Standby power consumption below 75mW at 230VAC in typical 65W+ designs
- Adaptive multi‑mode control (PWM, PFM, Burst) and QR/CCM operation
- Supports TL431 and third‑party secondary‑side controllers
- Optimized GaN gate drive for high‑current switching
- Supports switching frequencies up to 270kHz
- Dual‑polarity auxiliary‑winding support for improved EMI and simplified transformer design
- Built‑in protections: brown‑in, brown‑out, output short‑circuit, output over‑voltage, over‑current, and optocoupler failure
- User‑adjustable internal over‑temperature protection threshold
Description
The RRW22101 is a System‑in‑Package (SiP) product that integrates a 700V SuperGaN FET with a high‑performance AC/DC primary‑side digital flyback controller for secondary‑side regulation (SSR). Designed for 65W and higher‑power adapters, it supports operation with TL431 shunt regulators and other third‑party secondary‑side controllers across a wide range of end applications.
The device operates in constant‑frequency quasi‑resonant (QR) mode and uses adaptive multi‑mode control (MMC), which includes pulse‑width modulation (PWM), pulse‑frequency modulation (PFM), and burst‑mode operation. This control architecture improves efficiency, reduces electromagnetic interference (EMI), and eliminates audible noise across varying load conditions.
When paired with a TL431 or other secondary‑side controllers, the RRW22101 achieves tight constant‑voltage (CV), fast dynamic load response, and standby power consumption below 75mW in typical high‑power designs. Its integrated protection features and support for dual‑polarity auxiliary‑winding sensing simplify transformer design, enhance EMI performance, and help reduce overall system cost.
Parameters
| Attributes | Value |
|---|---|
| Topology Characteristic | SSR Flyback |
| Control Mode | Peak Current Mode DCM/CCM |
| UVLO Rising (V) | 15.3 |
| UVLO Falling (V) | 7.5 |
| VBIAS (Max) (V) | 42 |
| PWMs (#) | 1 |
| Output Power Max (W) | 100 |
| Switching Frequency (KHz) | 70 - 270 |
| Controller / Integrated | Integrated |
| Advanced Features | SuperGaN Integrated |
| Simulation Model Available | No |
| Temp. Range (°C) | -40 to +150°C |
| Qualification Level | Standard |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) |
|---|---|---|
| QFN8x8 | 8 x 8 x 0.85 | 22 |
Product Comparison
Applications
- High‑power rapid‑charging AC/DC adapters for laptops, tablets, and advanced portable devices
- Power supplies for televisions, networking equipment, appliances, and auxiliary power