Power Integrations LCS70x HiperLCS™ Integrated LLC Controllers
Power Integrations LCS70x HiperLCS™ Integrated LLC Controllers are an Integrated LLC power stage incorporating a multi-function controller, high-side and low-side gate drivers, plus two power MOSFETs in a half-bridge configuration. The variable frequency controller of the LCS70x HiperLCS Integrated LLC Controller provides high efficiency by switching the power MOSFETs at zero voltage (ZVS), eliminating switching losses. Typical applications for the Power Integrations LCS70x HiperLCS Integrated LLC Controllers are high efficiency power supplies, LCD TV power supplies, LED street and area lighting, printer power supplies, and audio amplifiers.
Features
- LLC half-bridge power stage incorporating controller, high and low-side gate drives, and high-voltage power MOSFETs
- Eliminates up to 30 external components
- High maximum operating frequency of 1 MHz
- Nominal steady-state operation up to 500 kHz
- Dramatically reduces magnetics size and allows use of SMD ceramic output capacitors
- Precise duty symmetry balances output rectifier current, improving efficiency
- 50% ±0.3% typical at 300 kHz
- Comprehensive fault handling and current limiting
- Programmable brown-in/out thresholds and hysteresis
- Undervoltage (UV) and overvoltage (OV) protection
- Programmable over-current protection (OCP)
- Short-circuit protection (SCP)
- Over-temperature protection (OTP)
- Programmable dead-time for optimized design
- Programmable burst mode maintains regulation at no-load and improves light load efficiency
- Programmable soft-start time and delay before soft-start
- Accurate programmable minimum and maximum frequency limits
- Single package designed for high-power and high-frequency
- Reduces assembly cost and reduces PCB layout loop areas
- Simple single clip attachment to heat sink
- Exposed thermal pad connected to ground potential - no insulators required between package and heat sink
- Staggered pin arrangement for simple PC board routing and high-voltage creepage requirements
- Paired with HiperPFS PFC product gives complete, high efficiency, low part count PSU solutions
Applications
- High-efficiency power supplies (80 PLUS Silver, Gold and Platinum)
- LCD TV power supplies
- LED street and area lighting
- Printer power supplies
- Audio amplifier
Typical Application Circuit
Related RDKs
Power Integrations Reference Design Kits (RDKs)
Real-world designs optimized for the most popular power conversion/supply applications.
Related Chipsets
Power Integrations HiperLCS-2 Off-Line LLC Switcher IC Chipsets
Feature 600V half-bridge synchronous rectification and FluxLink feedback.
Publicado: 2012-02-01
| Actualizado: 2025-09-11