công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

Preview PDF HTML

MCR03EZPFX1002 bảng dữ liệu(PDF) 24 Page - International Rectifier

tên linh kiện MCR03EZPFX1002
Giải thích chi tiết về linh kiện  HIGHLY EFFICIENT INTEGRATED 6A, SYNCHRONOUS BUCK REGULATOR
PDF  35 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  IRF [International Rectifier]
Trang chủ  http://www.irf.com
Logo IRF - International Rectifier

MCR03EZPFX1002 bảng dữ liệu(HTML) 24 Page - International Rectifier

Back Button MCR03EZPFX1002 Datasheet HTML 20Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 21Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 22Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 23Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 24Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 25Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 26Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 27Page - International Rectifier MCR03EZPFX1002 Datasheet HTML 28Page - International Rectifier Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 35 page
background image
Rev 4.0
24
PD-97528
IR3856MPbF
Setting the Power Good Threshold
Power Good threshold can be programmed by
using two external resistors (R5, R7 on Page 24).
The following formula can be used to set the
threshold:
Where: 0.85*Vref is reference of the internal
comparator, for IR3856.
V
o(PGood_TH) is
the selectable output voltage
threshold for power good, for this design it is
1.53V (i.e. 0.85*1.8V).
The PGood is an open drain output. Hence, it is
necessary to use a pull up resistor R
PG from
PGood pin to Vcc.
The value of the pull-up
resistor must be chosen such as to limit the
current flowing into the PGood pin, when the
output voltage is not in regulation, to less than 5
mA. A typical value used is 10kΩ.
Detailed calculation of compensation Type-III
kΩ
2.55
:
Select
kΩ
2.56
;
*
kΩ
4.02
:
Select
,
kΩ
3.97
;
*
*
2
1
Ω
130
:
Select
,
Ω
130
;
*
*
2
1
:
and
,
Calculate
pF
270
:
Select
,
pF
327
;
*
*
2
1
nF
10
:
Select
nF,
94
.
10
;
*
*
2
1
k
1.65
:
Select
kΩ
1.63
;
*
*
*
*
*
2
:
and
,
Calculate
nF
2.2
C
:
Select
kHz
300
*
0.5
and
kHz
8.82
*
5
.
0
:
Select
kHz
567.1
sin
1
sin
1
kHz
63
.
7
1
sin
1
sin
1
70
Margin
Phase
Desired
9
9
8
9
8
8
10
2
7
8
10
10
2
7
10
9
8
10
3
3
3
3
3
4
4
3
1
4
3
3
7
3
4
3
3
7
3
2
1
2
2
o
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
Ω
=
=
=
=
=
=
=
=
=
Θ
−
Θ
+
=
=
Θ
+
Θ
−
=
=
Θ
R
R
R
V
V
V
R
R
R
R
F
C
R
R
R
F
C
R
R
R
R
C
C
R
F
C
C
C
R
F
C
R
R
V
C
V
C
L
F
R
C
C
R
F
F
F
F
F
F
F
F
ref
o
ref
Z
P
P
Z
in
osc
o
o
o
s
P
Z
Z
o
P
o
Z
-
-
π
π
π
π
π
Programming the Current-Limit
The Current-Limit threshold can be set by
connecting a resistor (R
OCSET) from the SW pin
to the OCSet pin. The resistor can be calculated
by using equation (4). This resistor R
OCSET must
be placed close to the IC.
The
R
DS(on)
has
a
positive
temperature
coefficient and it should be considered for the
worst case operation.
kΩ
55
.
2
Select
kΩ
2.55
R
kHz)
600
(at
μA
59.07
I
)
current
output
nominal
over
(50%
A
9
1.5
A
6
mΩ
62
.
6
1
1.25
mΩ
4
.
13
7
OCSet
OCSet
)
(
)
(
=
=
=
=
=
=
≅
=
=
R
F
I
I
R
s
LIM
o
SET
on
DS
*
*
(32)
.
..........
R
I
R
I
I
)
on
(
DS
OCSet
OCSet
)
critical
(
L
SET
∗
=
=
Select R
7=2.55KOhm
Using (24): R
5=3.97KOhm
Select R
6=4.02KOhm
(33)
-
-
1
85
0
7
6
R
*
)
V
*
.
V
(
R
ref
)
TH
_
PGood
(
o
−
=



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


bảng dữ liệu tải về

Go To PDF Page


Link URL



Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Liên kết đến bảng dữ liệu    |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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