GaN Systems Introduces High-Power Density & Cost Effective 140W Charger Reference Design
GaN Systems has introduced a new turnkey 140W AC/DC charger reference design with USB PD3.1, Single Port Type-C Output. Compared to silicon-based chargers, this design is 40% lighter and 50% smaller, featuring an ultra-high-power density of 23W/in3. This design enhances GaN Systems’ portfolio (65W, 100W, 140W, 250W) of turnkey charger solutions for the consumer electronics market, enabling faster design cycles and continuing the roll-out of smaller, lighter, and more powerful and efficient chargers.
140W PFC + DS QR PD3.1 Charger reference design
Description and Specifications:
Input voltage: 90V-264Vac
Output Voltage and Current: SPR: 5V3A / 9V3A / 12V3A / 15V3A / 20V5A; EPR:28V5A
Passes EN55032 Class B conducted and radiated EMI
Meets IEC 62368-1 touch temperature requirement
Includes OVP, OCP, SCP system protection
Supports protocols: PD3.1, PPS, QC5.0, AFC, UFCS, etc.
Single USB-C port
Features and Benefits:
Industry-leading power density: 23W/in3
Full load efficiency: >94.2%
Cost effective, high frequency, 2-stage power topology
Bridgeless Totem Pole PFC (BTPPFC) + Dual Switch QR Flyback
Compared to complex 3-stage LLC-based designs:
Same efficiency performance
Quicker time-to-market with traditional flyback transformer design and reduced component count
Reduced no-load, standby power consumption: <150mW
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