LM5161-Q1: The Inductor ripple current

Ali Shatnawi

Prodigy 140 points

Part Number: LM5161-Q1

Hello,

I need your help.Pleas

Which the inductor Ripple current do you recommend to me.

I have the following:

Vin,max=60V

Iout,max=0.5

Vout= 15 V

Thanks.

over 5 years ago

0 Ambreesh Tripathi over 5 years ago

TI__Expert 6860 points

Ali ,

You can use 40-50% Iout as current ripple for your application .

--_Ambreesh

0 Ali Shatnawi over 5 years ago in reply to Ambreesh Tripathi

Prodigy 140 points

Thanks for your support

0 Ali Shatnawi over 5 years ago in reply to Ali Shatnawi

Prodigy 140 points

Hello,
Please i need your support

I have 2 questions.

1. question:
8.2.1.2.5 Output Capacitor Selection:
they have ripple voltage ΔVO = 10 mV, how do you get there?
for my application which value should I take?

2. Question:
8.2.1.2.8 Input Capacitor Selection
they have worst case input ripple of ∆VIN, ripple.= 0.5V, and D = 0.5
how do you get there?

for my application which value should I take ∆VIN, ripple and D?

my application:
Vin,max=60V
Iout,max=0.5
Vout= 15 V

Thanks for your Support

0 Ambreesh Tripathi over 5 years ago in reply to Ali Shatnawi

TI__Expert 6860 points

Ali ,

I have answered this question on different thread of yours .

--Ambreesh

0 Ali Shatnawi over 5 years ago in reply to Ambreesh Tripathi

Prodigy 140 points

thank you very much

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LM5161-Q1: The Inductor ripple current