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reference designMCP14T0517BT | Demoboard Isolated Bias Generator for SiC Gate Drivers

Microchip MCP14T0517BT | Demoboard Isolated Bias Generator for SiC Gate Drivers

Isolated Bias Generator for SiC Gate Drivers Reference

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage5-5.5 V
Output 125 V / 0.1 A
Output 2-5 V
Output 320 V
IC revision1

Description

The Isolated Bias Generator for SiC Gate Drivers Reference Design is based on MCP14T0517B which operates at 5V input voltage. The board provides galvanic isolated and regulated bias voltage of +20V with respect to 0V and -5V with respect to 0V at up to 100 mA of current. The board features configurable ENABLE pin for external control and synchronization.The MCP14T0517A/B device is a push-pull transformer driver designed for small form factor isolated power supply applications with a switching frequency of 150 kHz for MCP14T0517A and 450 kHz for MCP14T0517B. MCP14T0517A/B allows synchronization with multiple devices and operation at higher frequencies by applying an external clock of up to 1000 kHz.

Features

  • Input Voltage (VIN): 5V
  • Output Voltages: +20V with respect to 0V and -5V with respect to 0V
  • Output Current: up to 100 mA (for the output voltage of +25V with respect to -5V)
  • Switching Frequency: 450 kHz
  • Overtemperature and Overcurrent Protections
  • Ro-HS Compliant

Typical applications

  • Isolated Power Supplies for SiC/Si MOSFETs and IGBTs
  • Bias Generators for Isolated Communication Interfaces: CAN, LIN, USB, etc., Bias Generators for Isolated Sensing Circuitry

More information

Parts approved by Microchip

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Order Code
Data­sheet
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(mA)
Type of Insulation
fswitch(kHz)
∫Udt(Vµs)
NPRI : NSEC
L(µH)
VT(V (AC))
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
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750316819
SPECWE-PPTI Push-Pull Transformers, 5 V (DC), 12 V

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-PPTI Push-Pull Transformers
Input Voltage 5 V (DC)
Output Voltage 112 V
Output Current 1460 mA
Type of InsulationFunctional 
Switching Frequency 400 - 700
Voltage-µSecond9 Vµs
Turns Ratio1:2.88 
Inductance86 µH
Insulation Test Voltage2500 V (AC)
Length8.3 mm
Width12.6 mm
Height4.1 mm
MountSMT 
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