Gate Driver: DENSO (Toyota LEXUS “RZ450e” installed) Secondary driver IC Function-block Analysis Report

	Package appearance	Package X-ray	Secondary chip overview

Overview

The LEXUS RZ450e is the first model of a full-electric battery electric vehicle model in LEXUS lineup. It is the first inverter installed in Toyota vehicle to use SiC MOSFET (manufactured by Denso).

The gate driver, which drives the SiC MOSFET, is also made by DENSO and it has a three-chip configuration including primary driver IC, secondary driver IC and the die for insulation.

In this report, we focus on the secondary driver IC and the function of each block estimation from the planar observations is included.

Product characteristics

• Vehicle model: RZ450e (ZAA-XEBM15-AWDLS)
• All wheel drive rear inverter 80 kW (motor: 1YM)
• Installed DENSO SiC and Gate driver IC

Contents of analysis report (29 pages)

• Package overview and package x-ray
• Three dies images (primary driver IC, secondary driver IC, the die for insulation)
• Secondary driver IC plane view image of each layers (4 metals)
• Cross section of logic area (Process node identification) (FIB-SEM)
• Function block estimation

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