TPS23523: current limit waveform

Given Ding

Part Number: TPS23523

Hi Team,

in datasheet figure 25, when it enter into current limit, there seems a delay that current goes higher. is it designed for that ? Thanks.

BTW, have we met issue that it wrong trigger OCP when Vin has spike? Thanks.

BRs

Given

over 3 years ago

0 Avishek Pal over 3 years ago

TI__Mastermind 39700 points

Hi Given,

Thanks for reaching out to us. We will get back to you tomorrow.

0 Avishek Pal over 3 years ago in reply to Avishek Pal

TI__Mastermind 39700 points

Hi Given,

Please see the responses in the order of your queries.

1) This is due to C_ISS of the MOSFET. The GATE will take some time (hundreds of μs) to come down to a level to regulate it so that the current flowing through the load is getting limited at I_CL1.

2) This can happen in Hot Swap controllers. Please see this app note for more details.

Minimizing System Down-time with Smart eFuses

Power management

Power management forum

TPS23523: current limit waveform