Synchronous rectifier smart driver

The STRG02 smart driver implements a control scheme specific to secondary-side synchronous rectification in STVCOT™ based resonant converters.

It provides two high current gate drive outputs, each capable of driving one or more N-channel low-side power MOSFETs. Both gate drivers are controlled by the combination of the START input and embedded predictive ZCD/ZVS control assuring the two external power MOSFETs to be switched in zero voltage / zero current conditions to achieve high efficiency power conversion.

The high impedance mode can be configured with the two external power MOSFETs immediately kept OFF.

The STRG02 is available in a DFN12, 3 x 3 mm package with an exposed pad.

Key Features

  • Dual low-side driver for N-channel MOSFETs
  • 4 A sink/source current
  • Operating frequency up to 1 MHz
  • Predictive ZCS / ZVS control
  • High impedance control
  • START input
  • DFN12, 3 x 3 mm package


Technical Documentation

Product Specifications
Description Version Size
DB2869 DB2869: Synchronous rectifier smart driver 1.0 181 KB

Publications and Collaterals

Description Version Size
48 V direct conversion to CPUs, memories and ASICs 03.2017 1 MB
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STRG02TR VFDFPN 12 3X3X0.9 Tape And Reel Active - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STRG02TR ActiveVFDFPN 12 3X3X0.9-Ecopack2 0 0

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.