Cart Isolated Power
The isolated power portfolio from Texas Instruments covers the complete end-to-end power supply building blocks from front-end PFC controllers to PWM controllers that support the most popular isolated power topologies, including advanced phase-shifted full-bridge. The portfolio also includes a variety of MOSFET gate drivers that support both primary and secondary MOSFET driver applications, including synchronous rectifier driver topologies and many other power supply support products.
Isolated Power Products
LM5023 - AC-DC Quasi-Resonant Current Mode PWM Controller
- No cable compensation required
- Skip cycle mode reduces power consumption at light loads for energy conservation applications(ENERGY STAR, CEPCP, etc.)
- Quasi-resonant mode reduces switching losses and improves active efficiency
- Reduces EMI
- Hiccup mode prevents over-heating during extended overload conditions
LM5045/46 - Full-Bridge PWM Controller with Integrated MOSFET Drivers
- High current 2A full-bridge gate drivers
- Intelligent sync rectifier start-up for linear turn-on into pre-biased loads
- 5V sync rectifier drive for digital isolators or transformer
- 105V high-current start-up regulator
- Synchronous rectifier gate drive logic control signals
- Independently programmable synchronous rectifier delays (LM5045)
- Programmable resonant times for ZVS operation (LM5046)
Isolated Power Portfolio Overview
Power Factor Correction (PFC) Controllers
- Buck PFC controllers
- Boost PFC controllers
- Single phase
- Critical Conduction Mode
- Continuous Conduction Mode
- Two phase
- Critical Conduction Mode
- Continuous Conduction Mode
- Low-side MOSFET gate drivers
- Single
- Dual
- High-side / low-side half-bridge MOSFET gate drivers
- Drive enhancement-mode GaN FETs
- Half-bridge topology
- Single output
- Multi-output
DC/DC Controllers (external FET)
Single-Ended Controllers (<200W)
- General purpose & flyback PWM controllers
- Synchronous rectifier controllers
- Power supply support
- Active clamp forward PWM controllers
Double-Ended Controllers (>200W)
- Intermediate bus PWM controllers
- Resonant-transition controllers
- Push-pull / half-bridge / full bridge PWM controllers
- Phase-shifted full-bridge PWM controllers
- Digital power controllers
Design Resources
- Gate Drive Design for Enhancement-Mode GaN FETs (article)
- High-Voltage, Single-Chip DC/DC Regulator Optimized for Flyback, Boost, or Forward-Power Converter Applications (pdf)
- Communications System Power Supply Designs
- AN-1317 - Selection of External Bootstrap Diode for LM510x Devices
- Power Supply Design for Power over Ethernet Applications
- Isolated Supply Overview and Design Trade-Offs (article)
- WEBENCH® Designer Tools
Isolated Controllers Power E2E Forum