Power Integrations LYTSwitch-0 Off-Line Low Power LED Driver ICs
Power Integrations LYTSwitch-0 Off-Line Low Power LED Driver ICs integrate a 700V power MOSFET, oscillator, simple ON/OFF control scheme, a high-voltage switched current source, frequency jittering, cycle-by-cycle current limit, and thermal shutdown circuitry into a monolithic IC. The start-up and operating power are derived directly from the voltage on the DRAIN pin. This eliminates the need for a bias supply and associated circuitry and allows discrete inductors to be used. The fully integrated auto-restart circuit in the Power Integrations LYTSwitch-0 family safely limits output power during fault conditions such as short-circuit or open-loop, reducing component count.
Features
- High power factor meeting EU and USA requirements
- Low component count
- Frequency jitter reduces EMI
- No bias supply or transformer required
- Power factor correction
- Allows designs that easily meet European
and North American standards for PFC in consumer lighting applications
- Allows designs that easily meet European
- Tight CC performance
- Accurate current limit with tight line and load regulation that is stable over a wide temperature range
- Comprehensive protection
- Integrated auto-restart for short-circuiting, open-circuit, and open-loop faults as well as a high threshold over-temperature protection feature (min. +135°C) with automatic restart
Applications
- Flyback, buck, buck-boost, and boost architectures are all supported
- 700V switching power MOSFET supports an input voltage range of 85VAC to 308VAC
Videos
Additional Resources
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Publié le: 2013-07-17
| Mis à jour le: 2023-03-31