Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

SLMA002 Datasheet(PDF) 31 Page - Texas Instruments

Part # SLMA002
Description  3-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET AND EXTERNAL COMPENSATION
PDF  46 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SLMA002 Datasheet(HTML) 31 Page - Texas Instruments

Back Button SLMA002 Datasheet HTML 27Page - Texas Instruments SLMA002 Datasheet HTML 28Page - Texas Instruments SLMA002 Datasheet HTML 29Page - Texas Instruments SLMA002 Datasheet HTML 30Page - Texas Instruments SLMA002 Datasheet HTML 31Page - Texas Instruments SLMA002 Datasheet HTML 32Page - Texas Instruments SLMA002 Datasheet HTML 33Page - Texas Instruments SLMA002 Datasheet HTML 34Page - Texas Instruments SLMA002 Datasheet HTML 35Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 31 / 46 page
background image
DESIGN EXAMPLE 1 STEP-BY-STEP DESIGN PROCEDURE
(
)
OUT1
FD
MAX1
FD
IN min
V
V
5.0
0.4
D
»
0.540
V
V
9.6
0.4
+
+
=
=
+
+
(21)
(
)
OUT2
FD
MAX2
FD
IN min
V
V
3.3
0.4
D
»
0.370
V
V
9.6
0.4
+
+
=
=
+
+
(22)
(
)
OUT1
FD
MIN1
FD
IN m ax
V
V
5.0
0.4
D
»
0.397
V
V
13.2
0.4
+
+
=
=
+
+
(23)
(
)
OUT2
FD
MIN2
FD
IN max
V
V
3.3
0.4
D
»
0.272
V
V
13.2
0.4
+
+
=
=
+
+
(24)
(
)
(
)
Lrip max
OUT max
I
0.25
I
0.25
3.0 A
0.750 A
=
´
=
´
=
(25)
(
)
OUT1
IN m ax
m in1
m in1
Lrip1(m ax)
SW
V
V
1
13.2
5.0
1
L
D
0.397
7.23 H
I
f
0.75 A
600 kHz
-
-
»
´
´
=
´
´
=
m
(26)
(
)
OUT2
IN max
min 2
min 2
Lrip2(max)
SW
V
V
1
13.2
3.3
1
L
D
0.272
6.0 H
I
f
0.75 A
600 kHz
-
-
»
´
´
=
´
´
=
m
(27)
(
)
OUT1
IN max
RIPPLE1
min1
1
SW
V
V
1
13.2
5.0
1
I
D
0.397
0.661A
L
f
8.2 H
600 kHz
-
-
»
´
´
=
´
´
=
m
(28)
(
)
OUT2
IN max
RIPPLE2
min 2
2
SW
V
V
1
13.2
3.3
1
I
D
0.272
0.547 A
L
f
8.2 H
600 kHz
-
-
»
´
´
=
´
´
=
m
(29)
(
)
(
)
(
)
(
)
(
)
(
)
(
)
( )
(
)
2
2
2
2
2
2
1
1
1
RIPPLE1
RIPPLE1
L1 rms
L1 avg
OUT1 max
12
12
12
I
I
I
I
I
3.0
0.661
A
3.0 A
=
+
»
+
=
+
=
(
)
(
)
(
)
(
)
(
)
(
)
(
)
( )
(
)
2
2
2
2
2
2
1
1
1
RIPPLE2
RIPPLE2
L2 rms
L2 avg
OUT2 max
12
12
12
I
I
I
I
I
3.0
0.547
A
3.0 A
=
+
»
+
=
+
=
TPS55383
,, TPS55386
www.ti.com ......................................................................................................................................................................................... SLUS818 – SEPTEMBER 2008
The bill of materials for this application is shown below in Table 3. The efficiency, line and load regulation
measurements from boards built using this design are shown in Figure 34 and Figure 35.
Duty Cycle Estimation
The duty cycle of the main switching FET of each channel is estimated by:
Inductor Selection
The peak-to-peak ripple is to be limited to 25% of the max output current, so that
The minimum inductor size is estimated by:
The standard inductor value of 8.2
µH is selected for both Channel 1 and Channel 2. The resulting ripple
currents are estimated by:
RMS current through the inductor is approximated by:
(30)
(31)
The RMS inductor current is 3.0 for both channels.
Copyright © 2008, Texas Instruments Incorporated
Submit Documentation Feedback
31
Product Folder Link(s): TPS55383 TPS55386



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com