Part Number: CSD19501KCS Hello, TI team.
Thanks a lot to your team for sharing so many valuable design reference documens.
I am studying "MOTOR-DRIVE-FOC-FET-LOSS-CALC" for cross check MOSFET power loss.
Some calculation equations confuse me…
Hi Zehui,
Q1. The Power FET is partially turned on in order to dissipate the inductive flyback energy, please see below.
Q2. For normal reverse polarity protection, a blocking diode on GND is recommended. However, for loss of supply while driving inductive…
Part Number: LM5069QUICK-CALC Other Parts Discussed in Thread: LM5069 Dear team,
I'm using the LM5069 Design Calculator with FET Recommendation for SOA calculation
However Some of the green cells in the calculator is invalid.
1. can't set the load…
Dear Patrick Shalton
We tried CIN = 22uF and COUT = 10uF ,CT=0.01uF our observation 20 time 3 time device is fail. Currently improve but still some time failing.
Kindly guide for Load switch CIN,COUT,CT value for support inrush current (5G Modem 3.56V@4A…
Part Number: BQ40Z80 Other Parts Discussed in Thread: BQSTUDIO Hello, Seeking for some help here! We are making a prototype board with BQ40Z80 (4800_0_04) gauge and now, as we started a testing phase, we have faced a problem where the gauge is working normally…
Part Number: TPS22976 I am attempting to use a TPS22976 to achieve power supply sequencing. The TPS22976 seems to be acting more like a leaky valve than an actual switch. It is allowing significant current to flow through, even when it is off. This is causing…
Part Number: LM25184-Q1 Other Parts Discussed in Thread: LM25184 I am designing a flyback converter using LM25184-Q1. During efficiency calculation, I am not able to figure out how to calculate the switching loss of the MOSFET integrated in the IC. I…
Part Number: TPS22959 Other Parts Discussed in Thread: BQ21040 Can the TPS22959 load switch be used for Disconnecting the Load While Charging a single lithium ion battery using bq21040.
in another question I was advised to use the CHG/ pin on the bq21040…
Part Number: CSD19501KCS Other Parts Discussed in Thread: MOTOR-DRIVE-FET-LOSS-CALC , Hi, In the MOTOR-DRIVE-FET-LOSS-CALC Excel sheet, the equations tab contains an equation to calculate RDS(on) with temperature. But I am unable to understand what ΔRDS…
Part Number: TPS48110Q1EVM Hi,
I am using the TPS48110Q1EVM board with 24.6Vin/12A capable power supply at the input and an electronic load at the output.
When the electronic load is set to just 0.1A load settings and is enabled it is very difficult to…