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參數資料
| 型號： | LH1781-2RD3 |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT AC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-32/11 |
| 文件頁數： | 1/21頁 |
| 文件大小： | 984K |
| 代理商： | LH1781-2RD3 |
H Series Data Sheet
70 Watt AC-DC Converters
BCD20019 Rev AA
Page 1 of 21
www.power-one.com
Description
The H Series of AC-DC converters represents a flexible range
of power supplies for use in advanced industrial electronic
systems. Features include high efficiency, reliability, and low
output voltage noise.
The converter inputs are protected against surges and
transients occuring at the source lines. An input over- and
undervoltage lockout circuit disables the outputs, if the input
voltage is outside the specified range. An inrush current
limitation prevents circuit breakers and fuses from tripping at
switch-on.
All outputs are open- and short-circuit proof, and are protected
against overvoltages by means of built-in suppressor diodes.
The outputs can be inhibited by a logic signal applied to the
connector (pin 2). If the inhibit function is not used, pin 2 should
be connected to pin 23 to enable the outputs.
LED indicators display the status of the converter and allow
visual monitoring of the system at any time.
Full input to output, input to case, output to case, and output to
output isolation is provided. The converters are designed and
built
according
to
the
international
safety
standard
IEC/EN 60950-1 and have been approved by the safety
agencies TV and UL.
The case design allows operation at nominal load up to 50 °C
in a free-air ambient temperature. If forced cooling is provided,
the ambient temperature may exceed 50 °C but the case
temperature should remain below 80 °C under all conditions.
A temperature sensor generates an inhibit signal, which
disables the outputs, when the case temperature TC exceeds
the limit. The outputs automatically recover, when the
temperature drops below the limit.
Two options are available to adapt the converters to individual
applications (D, V).
The converters may either be plugged into 19" rack system
according to IEC 60927-3 or be mounted onto a chassis or a
plate.
Features
Universal operating input voltage range 85 to 255 VAC
RoHS lead-solder exemption compliant
Class I equipment
1, 2, or 3 isolated outputs up to 64 V
Input over- and undervoltage lockout
Outputs: SELV, no load, overload, short-circuit proof,
rectangular current limiting characteristic
Adjustable output voltages with remote on/off
Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6
Emissions according to EN 55011/55022
PCBs protected by lacquer
Battery charger models available
Table of Contents
Page
168
6.6"
39
1.54"
8TE
111
4.37"
3U
Safety according to IEC/EN 60950-1
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