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Part Number: TPS54227
Hi Team,
I understand that a recommended value of bootstrap capacitor is 0.1uF.
However, I would like to know a recommended minimum effective capacity value.
Could you please let us know if you have any information?
And, if an…
Part Number: TPS54227 Hello guys,
One of our customers is considering using TPS54227. They have a few questions as the follows.
Q1. In TPS54227 case, the output of DCDC using the device is not connected to the device directly (Divided output voltage is connected…
Part Number: TPS54227 Hi all Would you mind if we ask TPS54227? Our customer uses TPS54227 with input 4V～6V→ output 3.3V/1A. And the inductance(L) is 10uH. In this case, recommended value is 3.3uH on the datasheet. Is it possible to use with this condtion…
Other Parts Discussed in Thread: TPS54427 , TPS54227 Our customer uses the resistance of EN as shown in the attached figure.
Question 1.
About TPS54427, does 225~900kΩ mean to RB?
And please tell me the recommended value of RB when VEN is 5V.
About…
Part Number: TPS54227 Hi Support,
Am loading the IC 20% and 90% and noting down the current I (inductor current) at the point shown below. The full load will be around 1.2A Inductor used is Sumida 4.7uH (6030CDC4R7) The waveforms are enclosed. Am using a…
Other Parts Discussed in Thread: TPS54227 When TPS54227 supplying Vin：12V and keep EN:Low, Vout is increased (rised).
(Please see below)
※Yerrow： Vin_12V / Blue ：EN Low / Pink： Vout_0V～3.3V / Green ： Another 1.15V line(unrelated)
If there find the reason…
Other Parts Discussed in Thread: TPS54227 , TPS54225 Please let me know about soft start equation of TPS54227.
On the datasheet page-9, soft start equation is below.
※Tss(ms) = (C6 x Vref x 1.1) / Iss
I don't understand multiplied "1.1".
…
Other Parts Discussed in Thread: TPS54427 Hello,
My customer have a question about OCP of TPS54427.
In the section 7.3.4 Current Protection(Datasheet P8), It is written with [If the overcurrent condition exists for 7 consecutive switching cycles, the i…
Other Parts Discussed in Thread: TPS54227 Hi all
I have an unwanted amount of the switch waveform (square wave) appearing on the output using a very standard TPS54227 design (15V - 1.9V).
The waveform looks extremely similar to figure 13 in the datasheet…
Other Parts Discussed in Thread: TPS51367 , TPS54227 Customer is worried about Vout(VFB) transition(change) depend on Vout/Vin duty cycle.
Is there following relation gragh?
If have these gragh, please give me.
①TPS51367
・Relation gragh of Duty cycle and…
