Infineon TLD5541-1QU synchronous H-bridge DC-DC controller

The TLD5541-1QU is a synchronous MOSFET H-bridge DC-DC controller with built in protection features and SPI interface. This concept is beneficial for driving high power LEDs with maximum system efficiency (well above 90%) and minimum number of external components. Furthermore, reduced EMC emissions are achieved thanks to the optimized spread spectrum switching frequency.

Key features

• 16-bit SPI for diagnostics and control
• Fast dynamic behavior(load jump behavior)
• Programmable auto spread spectrum
• Switching frequency 200 to 700 kHz

Additional features
 

• LED current accuracy ±3%
• Adjustable soft start
• Limp home function
• Current and voltage mode
• Configuration and maximum features flexibility
• Increased LED Current Accuracy & Efficiency (>90%)
• Innovative feature set as solution for cost-optimized full LED headlamps
• Safety First with complete system monitoring and communication interface
• Small BOM  (1 coil H-Bridge)
• Very good EMC performance

Applications

• High powert and high current applications
• Laser headlamps
• LED or laser based matrix and pixel headlamps
• Cost optimized Full LED headlamps
• High-efficient voltage supply for LED applicattions

Available tools

• TLD5541-1QV DEMO V1:
  LED Driver & Ballast Controller
  TLD5541-1QV Systemdemobord (w/o uC board) To order please contact our sales office or distributor.
• TLD5541-2QV DEMO V1:
  LED Driver & Ballast Controller
  TLD5541-2QV Sepic/B2g + B2B demoboardTo order please contact our sales office or distributor.
• TLD5541-2 B2G DEMO:
  LED Driver & Ballast Controller
  TLD5541-2QV 2 channels Boost demo board - single and multiphase Boost