Low voltage full bridge reference design board featuring L6393 advanced high-voltage gate driver

The EVAL6393FB demonstrates how to use two L6393 drivers to drive a single-phase load through a full-bridge topology. This allows both the direction and the value of the current flowing into the load to be controlled. Typical loads, which can be effectively driven by using this topology, are single-phase BLDC motors, fans and HID lamps. Thanks to the integrated features of the L6393, the board has a very small footprint and an optimized layout, and can be simply run by applying the BUS voltage and a direction signal.

Key Features

  • ~150 W drive capability (50 V - 3.0 Ar.m.s. )
  • Very low area occupation, all devices and power switches in SMD package (no heatsink)
  • Fast-decay or slow-decay on-board constant off-time peak current control
  • PWM voltage mode control with overcurrent protection possible via external logic signals
  • Driver supply voltage on-board generation directly from BUS voltage
  • Carefully optimized layout





Description Version Size
DB1778 DB1778: Low voltage full-bridge demonstration board based on the L6393 advanced high voltage gate driver 1.0 469 KB


Board Manufacturing Specifications
Description Version Size
Gerber files for EVAL6393FB 1.0 181 KB
Bill of Materials
Description Version Size
EVAL6393FB BOM 2.0 45 KB
Schematic Packs
Description Version Size
EVAL6393FB schematic 2.0 503 KB


Description Version Size
Products and Solutions for Factory Automation and Control 1.0 3 MB


Description Version Size
Evaluation products license agreement 1.0 125 KB


型号 Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
EVAL6393FB L6393 Active 55.13 - NEC EAR99 - MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY

(*) 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


型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
EVAL6393FB ActiveCARDIndustrialEcopack1

(**) The Material Declaration forms available on st.com 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.