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
Application Notes
Board Manufacturing Specifications
Bill of Materials
Schematic Packs
License Agreement
Sample & Buy
| Part Number | Core Product | Unit Price (US$)
* | Quantity | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| STEVAL-ISA168V1 | SRK2001; STL140N4LLF5 | 15.32 | 1 | NEC | EAR99 | ITALY |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| STEVAL-ISA168V1 | CARD | Industrial | Ecopack2 | |
