TPS2110 turn ON/OFF specification

tateo yamashiro

Other Parts Discussed in Thread: TPS2110

Hi,

My customer has questions about TPS2110.
Could you tell me about questoins?

[Question]
- In datasheet, transition time(tT) is 40us(typ) at IL=500mA. When IL is other current value, does transition time change?

- Is there any specific about fall time(Vout=5V to 3.3V)?

- How much is value of dead time(Q1 and Q2 is OFF)?

Best Regards,

tateo

over 9 years ago

0 Aleksandras_Kaknevicius over 9 years ago

TI__Genius 15710 points

Hi Tateo,

This device falls under the Power Interface group. I will go ahead and move this thread into their forum.

Regards,

Alek Kaknevicius

0 Dinesh Kumar6 over 9 years ago

TI__Intellectual 2980 points

Hello Tateo,
The data sheet does not provide transition time (Tt) information for the other IL value, I believe this will remain within 60us.
The fall time is some related to again transition time which again will be with in 60us.
Based on the tPLH1 form the data sheet minimum dead time should be 5ms (10ms worst case) for the safe transition from one rail to other.
Please refer to the SWITCHING CHARACTERISTICS on page 5 of TPS2110 data sheet.

Regards
Dinesh

0 tateo yamashiro over 9 years ago in reply to Dinesh Kumar6

Guru 10890 points

Thank you for your suport. My customer has more questions. Please show this figure.

My customer is thinking this.

t1: Q1 is ON, Q2 is OFF
t2: Q1 and Q2 is OFF *Dead time
t3: Q2 is ON, Q1 is OFF
t4: Q1 and Q2 is OFF *Dead time
t5: Q1 is ON, Q2 is OFF

Is there any specific t2 and t3?
And what is "Deglitch of IN2-IN1 comparator(150us typ)"?

Best Regards,

tateo

0 tateo yamashiro over 9 years ago in reply to tateo yamashiro

Guru 10890 points

Sorry, I had wrong. My customer want to know t2 and t4. Best Regards,tateo

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TPS2110 turn ON/OFF specification