STEVAL-ISA168V1:Evaluation board: SRK2001 adaptive synchronous rectification controller for LLC resonant converters with STL140N4LLF5

The STEVAL-ISA168V1 is a product evaluation board designed to demonstrate the performance of the SRK2001 synchronous rectification controller. The SRK2001 implements a control scheme specific for secondary-side synchronous rectification in LLC resonant converters that use a transformer with center-tap secondary winding for full-wave rectification. It provides two high-current gate-drive outputs (for driving N-channel power MOSFETs). Each gate driver is controlled separately and an interlock logic circuit prevents the two synchronous rectifier (SR) MOSFETs from conducting simultaneously. Device operation is based on adaptive algorithms for both turn-on and turn-off of SR MOSFETs. During fast load transitions or during above resonance operation, a further turn-off mechanism is provided, based on a ZCD_OFF comparator that triggers the gate drive circuit for very fast MOSFET turn-off. The board includes two SR MOSFETs (PowerFlat package) and can be easily implemented in an existing converter as a substitute for rectifier diodes.

Key Features

  • Synchronous rectifier for LLC resonant converter, with adaptive turn-on and turn-off
  • VCC range: 4.5 V to 32 V
  • Max frequency: 500 kHz
  • Dual gate drive for N-channel MOSFETs (strd level driver)
  • SR MOSFET type: STL140N4LLF5 (40 V – 2.75 mΩ) PowerFLAT
  • RoHS compliant
Product Specifications
DescriptionVersionSize
DB2528: Evaluation board: SRK2001 adaptive synchronous rectification controller for LLC resonant converters with STL140N4LLF51.0208 KB
Application Notes
DescriptionVersionSize
AN4674: SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family1.0799 KB
Board Manufacturing Specifications
DescriptionVersionSize
STEVAL-ISA168V1 gerber files1.04 MB
Bill of Materials
DescriptionVersionSize
STEVAL-ISA168V1 BOM1.08 KB
Schematic Packs
DescriptionVersionSize
STEVAL-ISA168V1 schematic1.044 KB
License Agreement
DescriptionVersionSize
Evaluation products license agreement1.0125 KB
Sample & Buy
Part NumberCore ProductUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STEVAL-ISA168V1SRK2001; STL140N4LLF515.321NECEAR99ITALY
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STEVAL-ISA168V1CARDIndustrialEcopack2
Evaluation board: SRK2001 adaptive synchronous rectification controller for LLC resonant converters with STL140N4LLF5 STEVAL-ISA168V1
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SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family STEVAL-ISA168V1
SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family STEVAL-ISA168V1
SRK2001 adaptive synchronous rectification controller for LLC resonant converter evaluation board family STEVAL-ISA168V1
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