UCC21738-Q1: General question

Ryker She

Part Number: UCC21738-Q1

Tool/software:

Hi expert,

Could you recommend the Blanking time of UCC21738-Q1? We don't know how to set the suitable Blanking time.

We want to know the what's the Rds_on of the MOSFET as below picture show. Customer need to confirm the Rds_on in case the MOSFET is damaged by external circuit.

BR,

Ryker

6 months ago

0 Sasikala Thangam 6 months ago

TI__Expert 8065 points

Hi Ryker,

Let me get back to you shortly on the blanking capacitor question.

Rds of the FET is represented as the following spec:

at 1V, it is 40mA, so it is 25 ohms.

Thanks

Sasi

0 Sasikala Thangam 6 months ago in reply to Sasikala Thangam

TI__Expert 8065 points

Hi Ryker,

Please refer the following App note - which talks about different protection approaches and Section 5 talks about DESAT circuitry design considerations.

Choosing Appropriate Protection Approach for IGBT and SiC Power Modules

thanks

Sasi

Power management

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UCC21738-Q1: General question