PTH08T240WAS datasheet(13/30 Pages) TI

Part #	PTH08T240WAS

Description	10-A, 4.5-V to 14-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS?

PDF	30 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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C - Capacitance - F

RTT Resistor Selection

RTT + TBD

(1)

PTH08T240W

SLTS264A–NOVEMBER 2005–REVISED MARCH 2006

Figure 9. Capacitor Type A, 100 ≤ C(µF)xESR(mΩ) ≤ 1000

(e.g. Ceramic)

Table 2. Type A TurboTrans CO Values and Required RTT Selection Table

Transient Voltage Deviation (mV)

RTT

Minimum Required Output

Required TurboTrans

25% load step

50% load step

75% load step

Capacitance (µF)

Resistor (Ω)

(2.5 A)

(5 A)

(7.5 A)

tbd

open

tbd

short

The TurboTrans resistor value, RTT can be determined from the TurboTrans programming, see Equation 1

Where CO is the total output capacitance in µF. CO values greater than or equal to TBD µF require RTT to be a

short, 0Ω.

To ensure stability, a minimum amount of output capacitance is required for a given RTT resistor value. The value

of RTT must be calculated using the minimum required output capacitance determined from the capacitor

transient response charts above.

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PTH08T240WAS Datasheet(PDF) 13 Page - Texas Instruments