TPS2480PW datasheet(38/60 Pages) TI2

Il numero della parte	TPS2480PW

Spiegazioni elettronici	Positive Voltage Intelligent Protection Device Hotswap Controller and I2C Current Monitor

PDF	60 Pages

Scroll/Zoom	100%

Produttore elettronici	TI2 [Texas Instruments]

Homepage	https://www.ti.com

Logo

38 / 60 page

Cal=trunc

0.04096

Current_LSB

SHUNT

Cal=4096

Power_LSB=20

Current_LSB

Power_LSB=400

-6

Max_Current=Current_LSB

32767

Max_Current=0.65534

TPS2480

TPS2481

SLUS939B – APRIL 2010 – REVISED DECEMBER 2010

www.ti.com

5. Compute the Calibration Register value using Equation 33:

(33)

6. Calculate the Power LSB, using Equation 34. Equation 34 shows a general formula; because the bus voltage

measurement LSB is always 4 mV, the power formula reduces to the calculated result.

(34)

7. Compute the maximum current and shunt voltage values (before overflow), as shown by Equation 35 and

Equation 36. Note that both Equation 35 and Equation 36 involve an If - then condition:

(35)

If Max_Current

≥ Max Possible_I then

Max_Current_Before_Overflow = MaxPossible_I

Else

Max_Current_Before_Overflow = Max_Current

End If

NOTE

(Max_Current is greater than MaxPossible_I in this example.)

Submit Documentation Feedback

Product Folder Link(s): TPS2480 TPS2481

TPS2480PW Scheda tecnica(PDF) 38 Page - Texas Instruments