- 您现在的位置：买卖IC网 > PDF目录79869 > LT1701-7DB1 (POWER-ONE INC) 1-OUTPUT 550 W AC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | LT1701-7DB1 |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 550 W AC-DC REG PWR SUPPLY MODULE |
| 封装： | CASE T01, MODULE |
| 文件页数： | 25/33页 |
| 文件大小： | 838K |
| 代理商： | LT1701-7DB1 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页当前第25页第26页第27页第28页第29页第30页第31页第32页第33页
Rugged Environment
AC-DC Converters >100 Watt
T Series
Edition 4/4.99
31/33
MELCHER
The Power Partners.
Further information about designing battery systems is con-
tained in VDE 0510, part 2.
If a T unit is to be parallel connected with another T unit, it is
recommended to connect the two hot plug-in pins of each
female connector, HC+ (pin 16) and HC– (pin 18) to their
respective output pins Vo+ and Vo- to provide the hot plug-
in capabilities.
In case of remote temperature control, the temperature
sensor should be connected according to its wiring dia-
gram. Wrong connection may damage the sensor.
Make sure that there is sufficient air flow available for con-
vection cooling. This should be verified by measuring the
case temperature when the unit is installed and operated in
the end-use application. The maximum specified case tem-
perature
TC max must not be exceeded. See also: Thermal
Considerations.
If the end-product is to be UL certified, the temperature test
may be repeated asv part of the end-product investigation.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also:
Safety
of operator accessible output circuit.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power supplies
are not hermetically sealed.
Audible Noise
Under certain operating conditions, a T series AC-DC con-
verter may generate a slight audible noise due to magneto-
striction in the transformer. This noise does neither affect
the function of the unit nor is it detrimental to its perform-
ance over time.
Standards and approvals
All T series AC-DC converters correspond to class I equip-
ment. They are UL recognized according to UL 1950, UL
recognized for Canada to CAN/CSA C22.2 No. 950-95 and
LGA approved to IEC/EN 60950 standards and have been
evaluated in accordance with these standards for:
Building in
Basic insulation between input and case, based on
250 V AC
Double or reinforced insulation between input and out-
put, based on 250 V AC
Operational insulation between output and case
The use in a pollution degree 2 environment
Connecting the input to a primary circuit with a maxi-
mum transient rating of 2500 V (overvoltage class III
based on a 110 V primary circuit, overvoltage class II
based on a 230 V primary circuit).
The AC-DC converters are subject to manufacturing sur-
veillance in accordance with
the above mentioned UL,
CSA, EN and with ISO 9001 standards.
Isolation
The electric strength test is performed as factory test in ac-
cordance with IEC/EN 60950 and UL 1950 and should not
be repeated in the field. Melcher will not honour any guar-
antee claims resulting from electric strength field tests.
Important: Testing by applying AC voltages will result in
high and dangerous leakage currents flowing through
the Y-capacitors (see fig.:
Block diagram).
Table 22: Isolation
Characteristic
LT/UT AC-DC converter
Sensor
Unit
Input to
Output to
case
output
case
Electric
Required according to IEC/EN 60950
1.5
3.0 1
0.5
kVrms
strength
2.1
4.2 1
0.7
kV DC
test voltage
Actual factory test 1 s
2.8
5.6 1
1.4
AC test voltage equivalent to actual
2.0
4.0 1
1.0
kVrms
factory test
Insulation resistance at 500 V DC
>300
>100
M
1 In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.
V
MI
500
1500
10 k
220 nF
22 nF
10061
Fig. 55
Measuring instrument (MI) for earth leakage current tests
according to IEC/EN 60950, Annex D.
Leakage Currents in AC-DC operation
Leakage currents flow due to internal leakage capacitance
and RFI suppression Y-capacitors. The current values are
proportional to the mains voltage and nearly proportional to
the mains frequency. They are specified at maximum oper-
ating input voltage where phase, neutral and protective
earth are correctly connected as required for class I equip-
ment.
Under test conditions, the leakage current flows through a
measuring instrument (MI) as described in fig.:
Measuring
instrument for earth leakage current tests, which takes into
account impedance and sensitivity of a person touching
unearthed accessible parts. The current value is calculated
by dividing the measured voltage by 500
. If inputs and/or
outputs of T units are connected in parallel, their individual
leakage currents are added.
相关PDF资料 |
PDF描述 |
|---|---|
| LM3711YNBP-308 | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PBGA9 |
| LS4001-7EPD8 | 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
| LS4001-7EPDDB1 | 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
| LS4001-9EPV2T | 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
| LS4001-9ERD6B2 | 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1702-7 | 功能描述:AC-DC BATTERY CHARGER 48V 11A RoHS:否 类别:电源 - 外部/内部（非板载） >> AC DC 转换器 系列:* 产品培训模块:MP Modular-Configurable AC-DC Power Supply 特色产品:Configurable Power Supplies 标准包装:1 系列:MP |
| LT170A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Linear Hall-Effect Sensor |
| LT170E2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:LT170E2 |Data Sheet |
| LT170Z | 制造商:SEOUL 制造商全称:Seoul Semiconductor 功能描述:GREEN OVAL LAMP LED |
| LT171 | 制造商:SEOUL 制造商全称:Seoul Semiconductor 功能描述:RED LAMP LED |
发布紧急采购，3分钟左右您将得到回复。