6-18 Vdc Input Isolated SiC Gate Driver Supply +20V/-5V/5V with Automotive Qualified NCV3064 Controller Evaluation Board

Overview

The SECO-LVDCDC3064-SIC-GEVB is an isolated supply for SiC drivers, providing the necessary stable voltage rails -5 V / 20 V for an efficient switching—as well as an additional 5 V rail—over a wide input voltage range (6 Vdc to 18 Vdc). The converter is implemented as a primary side regulated flyback, with the feedback loop signal (1.25 V) realized via an auxiliary winding regulated at 5V and a voltage divider. The design leverages the several merits of the NCV3064 regulator, enabling a low component count, compact and robust design. Among the features of this converter stand out—e.g. an internal temperature compensated reference, a controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. The board is realized with Automotive qualified parts and is pin compatible with commercial SiC DC/DC supplies, provisioning a ready to use plug-in solutions for power applications.

Collateral

  • Isolated SIC Driver Supply
  • Automotive Powertrain Systems
  • Automotive Auxiliary Power
  • Core Part—NCV3064 (Automotive) / NCP3064 (Industrial)
  • Switching Frequency 150 kHz
  • Input Voltage 6-18 VDC
  • Output Voltage 5 V / 5 V / 20 V
  • Operation Mode DCM and CCM
  • Output Current 50 mA (for each Branch)
  • Efficiency at Full Load 67%
  • Size 26.24 x 16.38 x 16.06 mm
  • Transformer Basic Parameters
    • Interwinding Capacitance 6.4 pF
    • Dielectric Insulation 4000VAC
    • Inductance 42 μH
    • Leakage Inductance 650 nH

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6-18 Vdc Input Isolated SiC Gate Driver Supply +20V/-5V/5V with Automotive Qualified NCV3064 Controller Evaluation Board

$27.7

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Technical Documentation

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SECO-LVDCDC3064-SIC-GEVB_SCHEMATIC

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Eval Board: Schematic

168.96 KB

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Eval Board: Schematic

December 01, 2020

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SECO-LVDCDC3064-SIC-GEVB_GERBER

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Eval Board: Gerber

179.2 KB

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Eval Board: Gerber

December 01, 2020

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SECO-LVDCDC3064-SIC-GEVB_TEST_PROCEDURE

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Eval Board: Test Procedure

90.11 KB

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Eval Board: Test Procedure

November 01, 2020

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Eval Board: Manual

December 01, 2020

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SECO-LVDCDC3064-SIC-GEVB_BOM_ROHS

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Eval Board: BOM

136.19 KB

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Eval Board: BOM

December 01, 2020

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