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PTH04T241WAS 数据表(PDF) 21 Page - Texas Instruments

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部件名 PTH04T241WAS
功能描述  10-A, 2.2-V to 5.5-V INPUT, NON-ISOLATED, WIDE-OUTPUT, ADJUSTABLE POWER MODULE WITH TURBOTRANS?
PDF  38 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

PTH04T241WAS 数据表(HTML) 21 Page - Texas Instruments

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PTH04T240W Type C Capacitors
9
8
20
10
30
7
6
5
4
3
C − Capacitance −
µF
Without TurboTrans
With TurboTrans
C − Capacitance −
µF
9
8
20
10
30
7
6
5
4
3
Without TurboTrans
With TurboTrans
R
TT +
40
1 * CO 1100
C
O
220 * 1
(kW)
(4)
PTH04T240W, PTH04T241W
www.ti.com ...................................................................................................................................................... SLTS276D – OCTOBER 2006 – REVISED JULY 2009
5-V Input
3.3-V Input
Figure 14. Capacitor Type C,
Figure 15. Capacitor Type C,
5000 < C(
µF)×ESR(mΩ) ≤ 10,000
5000 < C(
µF)×ESR(mΩ) ≤ 10,000
(e.g. OS-CON)
(e.g. OS-CON)
Table 6. Type C TurboTrans CO Values and Required RTT Selection Table
Transient Voltage Deviation (mV)
5-V Input
3.3-V Input
25% load step
50% load step
75% load step
CO
RTT
CO
RTT
(2.5 A)
(5 A)
(7.5 A)
Minimum
Required
Minimum
Required
Required Output
TurboTrans
Required Output
TurboTrans
Capacitance (
µF)
Resistor (k
Ω)
Capacitance (
µF)
Resistor (k
Ω)
75
150
225
220
open
220
open
60
120
180
270
137
290
95.3
50
100
150
350
49.9
360
42.2
40
80
120
460
21.5
480
19.1
30
60
90
680
7.32
680
7.32
25
50
75
860
3.09
860
3.09
20
40
60
1150
short
1200
short
15
30
45
2750
short
3000
short
10
20
30
9300
short
above maximum
N/A
RTT Resistor Selection
The TurboTrans resistor value, RTT can be determined from the TurboTrans programming, see Equation 4.
Where CO is the total output capacitance in µF. CO values greater than or equal to 1100 µF require RTT to be a
short, 0
Ω. (RTT results in a negative value when CO > 1100µF).
To ensure stability, the value of RTT must be calculated using the minimum required output capacitance
determined from the capacitor transient response charts above.
Copyright © 2006–2009, Texas Instruments Incorporated
Submit Documentation Feedback
21
Product Folder Link(s): PTH04T240W PTH04T241W



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