STMicroelectronics L6986ITR | Demoboard STDES-SICGP4

Description

The STDES-SICGP4 reference design is based on SiC MOSFETs.The platform contains a half-bridge structure that supports HiP247-4 (TO247-4) packages. Gate driver and isolated auxiliary supply are also assembled. The external connection of a digital signal to the gate drivers inputs allows controlling MOSFETs by switching to a half-bridge structure. For instance, this kit allows testing the switching performance of the MOSFETs, using the double-pulse test method (DPT).This document shows an example of a switching energies test, using DPT, as well as measured waveforms and results calculated from them.The main board specification and the input/output connection are detailed in UM3044. Read this user manual before testing the platform.

Features

• Designed for iso-buck topology
• 4 V to 38 V operating input voltage
• Primary output voltage regulation / no optocoupler required
• 1.9 A typical sink peak primary current capability
• Peak current mode architecture in forced PWM operation
• 300 ns blanking time
• 8 µA IQ-SHTDWN
• Adjustable fSW and synchronization
• Embedded primary output voltage supervisor - Adjustable soft-start time
• Internal primary current limiting
• Overvoltage protection
• RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
• Thermal shutdown

Typical applications

• Motor drivers, Automation
• Solar converters
• Isolated power supply for SiC MOSFET and IGBT drivers, Isolated power supply for isolated interfaces (RS232, I2C, SPI, etc.), UPS

More information

• Datasheet
• IC product information