The PI Advantage: Smaller, Cooler, More Efficient LED Driver Designs for Smart Lighting

Choose: InnoSwitch4-QR Flyback Switcher ICs

For applications like LED strip lights, linear luminaires, and high-wattage ballasts, the InnoSwitch™4-QR family delivers up to 95% efficiency and consumes less than 30 mW at no-load. These high-frequency, quasi-resonant switcher ICs minimize transformer size and offer high power density for heatsink-free designs up to 220 W.

• Integrated Functionality: Combining the primary controller, a 750 V PowiGaN™ switch, FluxLink™ feedback, SR driver, and secondary controller in a compact 24-pin low-profile package.
• Simplified Design: Enabling an easy-to-design high efficiency flyback power stage, eliminating the need for complex half-bridge LLC implementations.
• Versatile Output Options: Configurable for constant voltage (CV) or constant current (CC) output with dimming support, including 0-10 V, PWM, and DALI controls.

DER-1038 – 100 W Low-Profile PFC + Flyback LED Driver for Strip Lights

• 198-305 VAC input
• PF >0.9 and THD <10% across line
• 24 V, 4.17 A nominal output
• >92% full load efficiency at 230 VAC
• Low component count (62 parts)
• High ambient temperature up to 55 °C
• Flicker-free performance

DER-1021 – 150 W PFC + Flyback 3-Way Dimmable LED Ballast

• 100-277 VAC input; 42 V, 3.57 A output
• Integrated PFC function, PF >0.95
• Very low ATHD and ripple current
• >92% efficiency at 230 VAC input
• 3-Way dimming (0-10 V analog, PWM, and variable resistance)

Choose: LYTSwitch-6 LED Driver ICs

For applications requiring precise dimming control and low component count, the LYTSwitch™-6 safety-isolated LED-driver IC is ideal. Available with a 650 V silicon or 750 V PowiGaN switch, the device delivers up to 110 W output power without requiring a heatsink. The flyback converter is 94% efficient and consumes less than 15 mW no-load including line sense.

The advanced driver technology achieves high efficiency and low component count while delivering dim-to-off capability via a 3-in-1 dimming circuit with possible inputs from variable DC supply (0-10 V), variable resistance (0-100 kΩ) or variable duty PWM signal (300-3 kHz), as well as 100% to 0% dimming through a Digital Addressable Lighting Interface (DALI).

DER-740 – 29 W Single-Stage Isolated Flyback LED Driver with 3-in-1 and DALI Dimming

• 180-265 VAC input; 36 V, 800 mA output
• >0.9 PF across input range
• Ultra-fast transient response
• Integrated protection and reliability features
• Accurate constant current regulation

Choose: LinkSwitch-TNZ Offline Switcher ICs

For smart dimmers and wall switches that require ultra-low standby power, the LinkSwitch™-TNZ devices provide an accurate signal when the sinusoidal AC line crosses zero volts. This process consumes less than 5 mW and eliminates the need for 10 or more discrete components, which would burn 50 to 100 mW continuously.

LinkSwitch-TNZ ICs can be used for non-isolated buck and buck-boost power supplies with up to 575 mA output current and can provide up to 12 W output for universal input isolated flyback designs.

DER-865 – Single-Stage Isolated Flyback Converter with 2-Wire Forward/Reverse Phase BLE Smart Dimmer

• 90-305 VAC input; 7 V, 800 mA output
• Bluetooth low-energy (BLE) connection
• Compatible with 2-wire (no-neutral) and 3-wire building wiring
• User selectable forward (leading-edge) or reverse (trailing-edge)
  dimming mode

• Full schematic design, BOM, transformer design, PCB layout, hardware builds, prototype designing and testing, EMI testing, and all types of pre-compliance testing.
• From simple data sheet questions to complex design challenges, get support directly from our engineers. PowerPros℠ is an online tech support service that enables power-supply designers to talk directly with members of our applications engineering team 24 hours a day, six days a week, anywhere in the world.