TPS54202: TPS54202

JUNHYEON LEE

Prodigy 20 points

Part Number: TPS54202

Hi. I have some questions about TPS54202.

(I want to know some spec of TPS54202 not in datasheet)

1. Maximum Drain-to-Source Voltage

2. Maximum ON Duty(%)

3. Maximum Inductor Current(using 22uH inductor)

Thank you.

over 3 years ago

0 Ryan Hu (BSR-MV) over 3 years ago

TI__Expert 4035 points

Hi,

Maximum Drain-to-source voltage is the VIN/SW ABS maximum voltage, 30V in datasheet.

Maximum duty is near to 100%, but it's not true 100% because when the Bootstrap cap voltage is down to 2.1V, the low-side FET would be forced on to charge the bootstrap cap.

Maximum current is the high-side current limit, 3.2A typical in datasheet.

0 JUNHYEON LEE over 3 years ago in reply to Ryan Hu (BSR-MV)

Prodigy 20 points

Hi,

1) what i'm trying to say is the voltage between VIN to SW. (it means maximum drain-to-source voltage of high-side mosfet of it's inside circuit.

2) Thank you.

3) I want to know output current flowing through the inductor

0 Ryan Hu (BSR-MV) over 3 years ago in reply to JUNHYEON LEE

TI__Expert 4035 points

Hi,

1) VIN ABS maximum votlage is high-side FET drain to source maximum voltage because SW would be GND when low-side FET turns on.

3) High-side current limit is actually the peak current in the inductor.

Let me know if you have more questions.

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TPS54202: TPS54202