Analog Devices LT8316 | Demoboard DC2781A

Description

Demonstration circuit 2781A is a nonisolated buck converter featuring the LT8316. The demo board outputs 12V and maintains tight regulation with a load current from 10mA to 0.2A. It is optimized to operate over a wide 19V to 600V DC input voltage range. Output voltage accuracy stays within ±1% over the entire input voltage and load range.The LT8316 is a high voltage flyback controller that can implement a high voltage buck converter if isolation is not needed. The nonisolated buck converter is a smaller, lower cost solution than the flyback converter.Quasi-resonant boundary mode operation improves load regulation. The LT8316 is available in a thermally enhanced 20-pin TSSOP package with four pins removed for high voltage spacing.The LT8316 datasheet gives a complete description of the part, operation and application information. The datasheet must be read in conjunction with the DC2781A demo manual.

Features

• Wide Input Voltage Range: 16V to 560V (600V max)
• No Opto-Isolator Required for Regulation
• Quasi-Resonant Boundary Mode Operation
• Constant-Current and Constant-Voltage Regulation
• Low-Ripple Light Load Burst Mode® Operation
• Low Quiescent Current: 75μA
• Programmable Current Limit and Soft-Start
• TSSOP Package with High-Voltage Pin Spacing
• Available in 20(15)-Lead Package with Extended Creepage Distance
• AEC-Q100 Compliant with ExceptionHBM ESD Classification Level 1C

Typical applications

• Electric Vehicles
• Isolated Telecom, Automotive, Industrial, Medical Power Supplies, Isolated Off-Line Housekeeping Power Supplies, Multioutput Isolated Power Supplies for Inverter Gate Drives
• Battery Stacks

More information

• Datasheet
• IC product information