Introducing the ToboGaN 60W AC-DC power supply board
COMPACT
At just 58mm x 49mm x 32 mm, the TobogGaN board achieves high power density. At the heart of the board is the InnoSwitch™3-Pro from Power Integrations, a highly integrated flyback controller which reduces component count and saves board space. It incorporates a quasi-resonant flyback controller, FluxLink™ isolated feedback system for high regulation accuracy and rapid transient response, a secondary-side synchronous controller, and Power Integrations’ own PowiGaN™ gallium nitride switch technology.
EFFICIENT
Power Integrations’ PowiGaN technology is widely used in the latest ultra-compact USB Type-C® chargers because of its high efficiency and low thermal dissipation. Gallium Nitride (GaN) switches produce lower switching and conduction losses than silicon MOSFETs of an equivalent power rating.
Thanks to the high efficiency of the PowiGaN primary-side switches in the Innoswitch3-Pro, the TobogGaN board achieves efficiency of 92% at peak load. This means it can often be used in a power supply with no heat-sinking, even when operating at the maximum ambient temperature rating of 60°C.
PROGRAMMABLE
The TobogGaN board’s InnoSwitch3-Pro controller provides for digital configuration via its I2C interface. Designers can select important power-system parameters such as output voltage and current limit. Designs based on the TobogGaN board can be easily modified to meet the requirements of multiple applications with a single hardware platform.
Key components included on the board:
- Power Integrations InnoSwitch3-Pro with PowiGaN technology AC-DC controller module
- Power Integrations CAP200DG for zero-loss automatic X-cap discharge
- Vishay SIR170DP 100V TrenchFET® Gen IV silicon power MOSFET supporting secondary-side synchronous switching for the power stage
- Panasonic EEHZK1E561UP conductive polymer hybrid aluminium electrolytic capacitor, offering low ESR and long operating lifetime
- Surge Components 400V long-life aluminium electrolytic capacitors
- Myrra flyback transformer and common-mode choke
Key Features and Specifications
- Input voltage: 85V to 265V AC
- Output voltage: Programmable from 5V to 20V
- Maximum output current: 3A
- Maximum continuous output power: 60W
- Efficiency at full load: 92%
- Maximum ambient temperature: 60°C
Target Applications
- Industrial and telecoms auxiliary power supplies for loads up to 60W
- General-purpose battery chargers
- Industrial USB Type-C chargers with a plug-in USB Type-C plug-in card
