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參數(shù)資料
| 型號(hào)： | YNV12T05-0 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SIP-5 |
| 文件頁數(shù)： | 25/27頁 |
| 文件大?。?/td> | 393K |
| 代理商： | YNV12T05-0 |
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Data Sheet
9.6 - 14Vdc Input; 5A, 0.7525 - 5.5Vdc Programmable Output
Rev 1 07-01-04
WWW.POWER-ONE.COM
Page 7 of 27
di/dt
Nex
TM
-v Series: YNV12T05
Protection Features
Input Under-Voltage Lockout
Input under-voltage lockout is standard with this
module. The module will shut down when the input
voltage drops below a pre-determined voltage; it
will start automatically when Vin returns to a
specified range.
The input voltage must be typically 9.2V for the
module to turn on. Once the module has been
turned on, it will shut off when the input voltage
drops below typically 8.4V.
Output Over-Current Protection (OCP)
The module is protected against over-current and
short circuit conditions. Upon sensing an over-
current condition, the module will enter hiccup
mode. Once over-load or short circuit condition is
removed, Vout will return to nominal value.
Over-Temperature Protection (OTP)
The module will shut down under an over-
temperature
condition
to
protect
itself
from
overheating caused by operation outside the
thermal derating curves, or operation in abnormal
conditions such as system fan failure. After the
module
has
cooled
to
a
safe
operating
temperature, it will automatically restart.
Safety Requirements
The
module
meets
North
American
and
International safety regulatory requirements per
UL60950
and
EN60950.
The
maximum
DC
voltage between any two pins is Vin under all
operating conditions. Therefore, the unit has ELV
(extra
low
voltage)
output;
it
meets
SELV
requirements under the condition that all input
voltages are ELV.
The module is not internally fused. To comply with
safety agencies requirements, a recognized fuse
with a maximum rating of 7.5 Amps must be used
in series with the input line.
Characterization
General Information
The module has been characterized for many
operational aspects, to include thermal derating
(maximum load current as a function of ambient
temperature and airflow) for vertical and horizontal
mounting,
efficiency,
start-up
and
shutdown
parameters, output ripple and noise, transient
response to load step-change, overload and short
circuit.
The figures are numbered as Fig. x.y, where x
indicates the different output voltages, and y
associates with specific plots (y = 1 for the vertical
thermal derating, …). For example, Fig. x.1 will
refer to the vertical thermal derating for all the
output voltages in general.
The following pages contain specific plots or
waveforms associated with the module. Additional
comments for specific data are provided below.
Test Conditions
All thermal and efficiency data presented were
taken with the module soldered to a test board.
Specifically a 0.060” thick printed wiring board
(PWB) with four layers. The top and bottom layers
were
not
metalized.
The
two
inner
layers,
comprising two-ounce copper, were used to
provide traces for connectivity to the module.
The lack of metalization on the outer layers as well
as the limited thermal connection ensured that
heat transfer from the module to the PWB was
minimized.
This
provides
a
worst-case
but
consistent scenario for thermal derating purposes.
All measurements requiring airflow were made in
di/dt’s vertical and horizontal wind tunnel facilities
using
Infrared
(IR)
thermography
and
thermocouples for thermometry.
Ensuring components on the module do not
exceed their ratings is important to maintaining
high reliability. If one anticipates operating the
module at or close to the maximum loads specified
in the derating curves, it is prudent to check actual
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