- 您现在的位置：买卖IC网 > PDF目录97634 > PLD08UDB (POWER-ONE INC) 2-OUTPUT DC-DC REG PWR SUPPLY MODULE PDF资料下载
参数资料
| 型号： | PLD08UDB |
| 厂商： | POWER-ONE INC |
| 元件分类： | 电源模块 |
| 英文描述： | 2-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 5/7页 |
| 文件大小： | 200K |
| 代理商： | PLD08UDB |
JUN 04, 2004 revised to APR 11, 2006
Page 5 of 7
www.power-one.com
PLD08 DC-DC Series Data Sheet
Non-Isolated Converters
An open collector switch is recommended to control the
voltage between the Inhibit pin and the GND pin of the
converter. The Inhibit pin is pulled up internally, so no
external voltage source is required. Avoid connecting a
resistor between the Inhibit pin and the +Vin pin.
When the Inhibit pin is used to achieve remote control,
the user must take care that the control signal must is
not referenced ahead of EMI filtering, or remotely from
the unit. Optical couplers placed directly at the module
will solve any ground reference problems.
Output Voltage Trim
The trim feature allows the user to adjust each of the output
voltages +10% from the nominal setting. This function can be
used for voltage margining, compensation for distribution
losses, or other requirements when the output voltage needs
to be adjusted.
The Trim Function
The trim mechanism for the PLD08 Series trims up with
a resistor from the TRIM pin to the GND pin and trims
down with a resistor from the TRIM pin to the respective
+Vout pin. See Figures 6 and 7.
The general equation for trimming the output voltage on
either output of the PLD08 Series is shown below:
kOhm
1
99
.
4
*
)
8
.
0
(
=
Vadj
Vout
Vadj
R
TrimDOWN
kOhm
GND
TRIM 2
V
out2
TRIM 1
V
out1
R
up 2
R
up 1
Figure 6. PLD08 Series Trim-Up Schematic
GND
TRIM 2
V
out2
R
down
2
TRIM 1
V
out1
R
down
1
Figure 7. PLD08 Series Trim-Down Schematic
NOTES:
1.
When the output voltage is trimmed up, the output power
from the converter must not exceed its maximum rating.
2.
In order to avoid creating apparent load regulation
degradation, it is important that the trim resistors are
connected directly to the Vout and output GND pins, and
not to the load or to traces going to the load.
Safety Considerations
The PLD08 Series converters do not provide
isolation from input to output. Relevant isolation
requirements according to all IEC60950 based
standards must be provided by the input devices to
the PLD08 Series module.
Nevertheless, if the
system using the converter needs to receive safety
agency approval, certain rules must be followed in
the design of the system. In particular, all of the
creepage and clearance requirements of the end-
use safety requirements must be observed. These
documents include UL60950 - CSA60950-00 and
EN60950, although specific applications may have
other or additional requirements.
The PLD08 Series converters have no internal fuse.
An external fuse must be provided to protect the
system in the event of failure. A fuse with a rating
not greater than 7 A, 125 V is recommended. The
user can select a lower rating fuse based upon the
inrush transient and the maximum input current of
the converter, which occurs at the minimum input
voltage. Both input traces and the chassis ground
trace (if applicable) must be capable of conducting
a current of 1.5 times the value of the fuse without
opening.
The fuse must not be placed in the
grounded input line.
In order for the output of the PLD08 Series
converter to be considered as SELV (Safety Extra
Low Voltage), according to all IEC60950 based
standards, the input to the module needs to be
1
8
.
0
*
99
.
4
=
Vout
Vadj
R
TrimUP
相关PDF资料 |
PDF描述 |
|---|---|
| PLD08VED | 2-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| PLF0630 | PLL FREQUENCY SYNTHESIZER, 670 MHz, QCC22 |
| PLL1100A | PHASE LOCKED LOOP, 1130 MHz, QMA14 |
| PLL350-1760 | PHASE LOCKED LOOP, 1790 MHz, QCC14 |
| PLL350-1760Y | PHASE LOCKED LOOP, 1790 MHz, QCC14 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PLD08UDC | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:PLD08 Series . 8A Non-Isolated DC/DC Converter 5V, 3.3V Input Dual Output |
| PLD08UDD | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:PLD08 Series . 8A Non-Isolated DC/DC Converter 5V, 3.3V Input Dual Output |
| PLD08UDY | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:PLD08 Series . 8A Non-Isolated DC/DC Converter 5V, 3.3V Input Dual Output |
| PLD08UYY | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:PLD08 Series . 8A Non-Isolated DC/DC Converter 5V, 3.3V Input Dual Output |
| PLD08VAA | 制造商:POWER-ONE 制造商全称:Power-One 功能描述:PLD08 Series . 8A Non-Isolated DC/DC Converter 5V, 3.3V Input Dual Output |
发布紧急采购，3分钟左右您将得到回复。