数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

PI2123 数据表(PDF) 15 Page - Vicor Corporation

部件名 PI2123
功能描述  15 Volt, 15 Amp Full-Function Active ORing Solution
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  VICOR [Vicor Corporation]
网页  http://www.vicorpower.com
标志 VICOR - Vicor Corporation

PI2123 数据表(HTML) 15 Page - Vicor Corporation

Back Button PI2123 Datasheet HTML 11Page - Vicor Corporation PI2123 Datasheet HTML 12Page - Vicor Corporation PI2123 Datasheet HTML 13Page - Vicor Corporation PI2123 Datasheet HTML 14Page - Vicor Corporation PI2123 Datasheet HTML 15Page - Vicor Corporation PI2123 Datasheet HTML 16Page - Vicor Corporation PI2123 Datasheet HTML 17Page - Vicor Corporation PI2123 Datasheet HTML 18Page - Vicor Corporation PI2123 Datasheet HTML 19Page - Vicor Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 15 / 20 page
background image
Picor Corporation • picorpower.com
PI2123
Rev 1.0
Page 15 of 20
curves versus conducted current at given ambient
temperatures and air flow.
OV/UV resistor selection:
The UV and OV comparator inputs are used to
monitor the input voltage and will indicate a fault
condition when this voltage is out of range. The UV
& OV pins can be configured in two different ways,
either with a divider on each pin, or with a three-
resistor divider to the same node, enabling the
elimination of one resistor. Under-voltage is
monitored by the UV pin input and over-voltage is
monitored with the OV pin input.
The Fault pin ( FT ) will indicate a fault (active low)
when the UV pin is below the threshold or when the
OV pin is above the threshold. The threshold is
0.50V typical with 25mV hysteresis and the input
current is less than ±1µA. It is important to consider
the maximum current that will flow in the resistor
divider and maximum error due to UV and OV input
current. Set the resistor current to 100µA or higher
to maintain better than 1% accuracy for UV and OV
due to the bias current.
The three-resistor voltage divider configuration for
both UV and OV to monitor the same voltage node
is shown in Figure 19:
Ra
TH
I
OV
V
Ra
)
(
=
Set
value based on system allowable current
Ra
Ra
I
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
=
1
)
(
)
(
UV
V
OV
V
Ra
Rb
()
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
+
=
1
)
(
)
(
TH
UV
V
UV
V
Rb
Ra
Rc
Where:
)
(
TH
UV
V
: UV threshold voltage at Vin.
)
(
TH
OV
V
: OV threshold voltage at Vin.
)
(UV
V
: UV voltage set
Ra
I
:
current.
Ra
Alternatively,
a
two-resistor
voltage
divider
configuration can be used and is shown in Figure
20.
Figure 20
: UV & OV two-resistor divider
configuration
The UV resistor voltage divider can be obtained from
the following equations:
RUV
TH
UV
I
UV
V
R
)
(
1
=
Set
value based on system allowable current
UV
R1
A
I
RUV
μ
100
≥
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
=
1
)
(
)
(
1
2
TH
UV
UV
UV
V
UV
V
R
R
Where:
)
(
TH
UV
V
: UV threshold voltage
RUV
I
:
current
UV
R1
RUV
TH
UV
I
UV
V
R
)
(
1
=
Set
value based on system allowable current
OV
R1
A
I
RUV
μ
100
≥
⎟⎟
⎠
⎞
⎜⎜
⎝
⎛
−
=
1
)
(
)
(
1
2
TH
OV
OV
OV
V
OV
V
R
R
Where:
)
(
TH
OV
V
: OV threshold voltage
ROV
I
:
current.
OV
R1
Figure 19:
UV & OV three-resistor divider
configuration



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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