IGBT｜Application
IGBT IPM: Protection Functions and Operation Sequences
2024.02.08
Points of this article
・The protection functions and operation sequences of IGBT IPMs are explained, using as examples the BM6437xseries.
・In addition to understanding protection functions, the operation sequences, method of calculating the values of external components, and other matters must be understood.
IGBT IPM protection functions and operation sequences are here explained, taking as examples the BM6437x series, which are ROHM’s third generation of IGBT IPMs. In the design stage, along with an understanding of protection functions, the operation sequences, method of calculating the values of components that are necessary such as resistors and capacitors, and other matters must be understood. Here, the following subjects are explained.
- Short circuit current protection（SCP）
- Control power supply undervoltage lockout（UVLO）
- Thermal shutdown（TSD）
- Analog temperature output（VOT）
- Fault output （FO）
- Control inputs （HINU, HINV, HINW, LINU, LINV, LINW）
Reading the data sheets for the IGBT IPMs used as examples will also facilitate understanding. The following are links to the data sheets for the relevant products.
| Series | Part Number | Rating |
|---|---|---|
| Temperature Output function Thermal Shutdown function |
BM64374S-VA | 15A/600V |
| BM64375S-VA | 20A/600V | |
| BM64377S-VA | 30A/600V | |
| BM64378S-VA | 35A/600V |
【Download Documents】 Basics of IGBTs
IGBTs are one of the typical power devices and are used in a wide range of applications including motor drives. This handbook provides a basic understanding of IGBTs, including their application scope and application picture based on their features, their structure and principle of operation, and how they compare with and use other power devices.
IGBT
Basic
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About IGBTs
- Applications Using IGBTs
- IGBT Structure
- Principles of Operation of IGBTs
- Range of Application of IGBTs
- IGBT Features: Comparisons with MOSFETs and Bipolar Transistors
- Selective Use of Power Devices in Motor Applications
- Short Circuit Withstand Time (SCWT) of IGBTs
- IGBTs Incorporating Fast Recovery Diodes (FRDs)
- About IGBT IPMs （Intelligent Power Modules）
Application
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IGBT IPM: Protection Functions and Operation Sequences
- Short Circuit Current Protection (SCP) Function of IGBT IPMs
- Control Power Supply Undervoltage Lockout（UVLO) Function of IGBT IPMs
- Thermal shutdown（TSD） Function of IGBT IPMs
- Analog Temperature Output（VOT）of IGBT IPMs
- Fault Output（FO）of IGBT IPMs
- Control inputs （HINU, HINV, HINW, LINU, LINV, LINW）of IGBT IPMs
- Protection Functions and Operation Sequences －Summary－
Product Information