Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

IR3523MPBF Datasheet(PDF) 32 Page - International Rectifier

Part # IR3523MPBF
Description  XPHASE3TM DUAL OUTPUT CONTROL IC
PDF  37 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IR3523MPBF Datasheet(HTML) 32 Page - International Rectifier

Back Button IR3523MPBF Datasheet HTML 28Page - International Rectifier IR3523MPBF Datasheet HTML 29Page - International Rectifier IR3523MPBF Datasheet HTML 30Page - International Rectifier IR3523MPBF Datasheet HTML 31Page - International Rectifier IR3523MPBF Datasheet HTML 32Page - International Rectifier IR3523MPBF Datasheet HTML 33Page - International Rectifier IR3523MPBF Datasheet HTML 34Page - International Rectifier IR3523MPBF Datasheet HTML 35Page - International Rectifier IR3523MPBF Datasheet HTML 36Page - International Rectifier Next Button
Zoom Inzoom in Zoom Outzoom out
 32 / 37 page
background image
IR3523
Page 32 of 37
June 20, 2008
The over current set resistor (Rocset) can be calculated as follows:
OCSET
CS
TOFST
CS
P
L
LIMIT
OCSET
I
G
V
K
R
n
I
R
/
]
)
1
(
[
1
_
∗
+
+
∗
∗
=
,
Ω
=
∗
∗
=
−
−
k
6
.
21
)
10
*
38
/(
5
.
32
*
)
156
.
1
10
*
52
.
0
1
42
(
6
3
,
OCSET
CS
TOFST
CS
P
L
LIMIT
OCSET
I
G
V
K
R
n
I
R
/
]
)
1
(
[
2
_
∗
+
+
∗
∗
=
,
Ω
=
∗
∗
=
−
−
k
6
.
20
)
10
*
38
/(
5
.
32
*
)
23
.
1
10
*
47
.
0
3
125
(
6
3
.
VCCL Programming Resistor RVCCLFB1 and RVCCLFB2
Choose VCCL=7V to maximize the converter efficiency. Pre-select RVCCLFB1=20k , and calculate RVCCLFB2.
Ω
=
−
=
−
=
k
VCCL
R
R
VCCLFB
VCCLFB
26
.
4
23
.
1
7
23
.
1
*
10
*
20
23
.
1
23
.
1
*
3
1
2
No Load Offset Setting Resistor RFB11 and Adaptive Voltage Positioning Resistor RDRP11 for
Output1
Given the desired offset voltage (VO_NLOFST) and calculating the FB1 sink current using the equation in the
ELECTRICAL CHARACTERISTICS Table, the effective offset resistor value RFB11 can be determined by:
Ω
=
Ω
=
=
=
−
−
523
526
10
*
38
10
*
20
6
3
1
_
11
FB
NLOFST
O
FB
I
V
R
(Actual Value).
Adaptive voltage positioning lowers the converter voltage by RO*IO, where RO is the required output impedance of
the converter. RDRP11 is calculated with the following equation:
Ω
=
=
∗
∗
=
−
−
K
R
n
G
R
R
R
O
CS
ROOM
L
FB
DRP
33
.
1
10
*
6
*
1
5
.
32
*
10
*
47
.
0
*
523
*
3
3
_
11
11
.
In the case of thermal compensation is required, use equation (14) to (17) to select the RFB network resistors.



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


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