Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

BEI15-050-Q12P-C Datasheet(PDF) 6 Page - Murata Manufacturing Co., Ltd.

Part # BEI15-050-Q12P-C
Description  Isolated Wide Input Bipolar 15-Watt DC/DC Converters
Download  13 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MURATA [Murata Manufacturing Co., Ltd.]
Direct Link  http://www.murata.com
Logo MURATA - Murata Manufacturing Co., Ltd.

BEI15-050-Q12P-C Datasheet(HTML) 6 Page - Murata Manufacturing Co., Ltd.

Back Button BEI15-050-Q12P-C Datasheet HTML 2Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 3Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 4Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 5Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 6Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 7Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 8Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 9Page - Murata Manufacturing Co., Ltd. BEI15-050-Q12P-C Datasheet HTML 10Page - Murata Manufacturing Co., Ltd. Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 13 page
background image
BEI15 Series
Isolated Wide Input Bipolar 15-Watt DC/DC Converters
www.murata-ps.com
email: sales@murata-ps.com
04 Mar 2010
MDC_BEI15W.A01 Page 6 of 13
Input Fusing
Certain applications and/or safety agencies may require fuses at the inputs of
power conversion components. Fuses should also be used when there is the
possibility of sustained input voltage reversal which is not current-limited. For
greatest safety, we recommend a fast blow fuse installed in the ungrounded
input supply line.
The installer must observe all relevant safety standards and regulations. For
safety agency approvals, install the converter in compliance with the end-user
safety standard.
Input Under-Voltage Shutdown and Start-Up Threshold
Under normal start-up conditions, converters will not begin to regulate properly
until the rising input voltage exceeds and remains at the Start-Up Threshold
Voltage (see Specifications). Once operating, converters will not turn off until
the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent
restart will not occur until the input voltage rises again above the Start-Up
Threshold. This built-in hysteresis prevents any unstable on/off operation at a
single input voltage.
Users should be aware however of input sources near the Under-Voltage
Shutdown whose voltage decays as input current is consumed (such as poorly
regulated capacitor inputs), the converter shuts off and then restarts as the
external capacitor recharges. Such situations could oscillate. To prevent this,
make sure the operating input voltage is well above the UV Shutdown voltage
AT ALL TIMES.
Start-Up Delay
Assuming that the output current is set at the rated maximum, the Vin to Vout
Start-Up Delay (see Specifications) is the time interval between the point when
the rising input voltage crosses the Start-Up Threshold and the fully loaded
regulated output voltage enters and remains within its specified regulation
band. Actual measured times will vary with input source impedance, external
input capacitance, input voltage slew rate and final value of the input voltage
as it appears at the converter.
These converters include a soft start circuit to moderate the duty cycle of the
PWM controller at power up, thereby limiting the input inrush current.
The On/Off Remote Control interval from inception to Vout regulated
assumes that the converter already has its input voltage stabilized above the
Start-Up Threshold before the On command. The interval is measured from the
On command until the output enters and remains within its specified accuracy
band. The specification assumes that the output is fully loaded at maximum
rated current.
Recommended Input Filtering
The user must assure that the input source has low AC impedance to provide
dynamic stability and that the input supply has little or no inductive content,
including long distributed wiring to a remote power supply. The converter will
operate with no additional external capacitance if these conditions are met.
For best performance, we recommend installing a low-ESR capacitor
immediately adjacent to the converter’s input terminals. The capacitor should
be a ceramic type such as the Murata GRM32 series or a polymer type. Initial
APPLICATION NOTES
suggested capacitor values are 10 to 22 μF, rated at twice the expected maxi-
mum input voltage. Make sure that the input terminals do not go below the
undervoltage shutdown voltage at all times. More input bulk capacitance may
be added in parallel (either electrolytic or tantalum) if needed.
Recommended Output Filtering
The converter will achieve its rated output ripple and noise with no additional
external capacitor. However, the user may install more external output capaci-
tance to reduce the ripple even further or for improved dynamic response.
Again, use low-ESR ceramic (Murata GRM32 series) or polymer capacitors.
Initial values of 10 to 47 μF may be tried, either single or multiple capacitors in
parallel. Mount these close to the converter. Measure the output ripple under
your load conditions.
Use only as much capacitance as required to achieve your ripple and noise
objectives. Excessive capacitance can make step load recovery sluggish or
possibly introduce instability. Do not exceed the maximum rated output capaci-
tance listed in the specifications.
Input Ripple Current and Output Noise
All models in this converter series are tested and specified for input reflected
ripple current and output noise using designated external input/output com-
ponents, circuits and layout as shown in the figures below. The Cbus and Lbus
components simulate a typical DC voltage bus. Please note that the values of
Cin, Lbus and Cbus may vary according to the specific converter model.
In figure 3, the two copper strips simulate real-world printed circuit imped-
ances between the power supply and its load. In order to minimize circuit
errors and standardize tests between units, scope measurements should be
made using BNC connectors or the probe ground should not exceed one half
inch and soldered directly to the test circuit.
Minimum Output Loading Requirements
All models regulate within specification and are stable under 10% minimum
load to full load conditions. Operation under no load might however slightly
increase output ripple and noise.
Thermal Shutdown
To protect against thermal overstress, these converters include thermal shut-
down circuitry. If environmental conditions cause the temperature of the DC/
DC’s to rise above the Operating Temperature Range up to the shutdown tem-
CIN
VIN
CBUS
LBUS
CIN = 2 x 100μF, ESR < 700mΩ @ 100kHz
CBUS = 1000μF, ESR < 100mΩ @ 100kHz
LBUS = 1μH
+INPUT
-INPUT
CURRENT
PROBE
TO
OSCILLOSCOPE
+
+
Figure 2: Measuring Input Ripple Current


Similar Part No. - BEI15-050-Q12P-C

ManufacturerPart #DatasheetDescription
logo
Murata Power Solutions ...
BEI15-050-Q12PL1-C MURATA-PS-BEI15-050-Q12PL1-C Datasheet
270Kb / 13P
   Isolated Wide Input Bipolar 15-Watt DC/DC Converters
BEI15-050-Q12PL2-C MURATA-PS-BEI15-050-Q12PL2-C Datasheet
270Kb / 13P
   Isolated Wide Input Bipolar 15-Watt DC/DC Converters
More results

Similar Description - BEI15-050-Q12P-C

ManufacturerPart #DatasheetDescription
logo
Murata Power Solutions ...
BEI15 MURATA-PS-BEI15 Datasheet
270Kb / 13P
   Isolated Wide Input Bipolar 15-Watt DC/DC Converters
logo
Murata Manufacturing Co...
BEI15 MURATA-BEI15_11 Datasheet
255Kb / 13P
   Isolated Wide Input Bipolar 15-Watt DC/DC Converters
logo
Murata Power Solutions ...
BPM15 MURATA-PS-BPM15 Datasheet
430Kb / 29P
   Encapsulated Isolated Wide Input Bipolar 15-Watt DC-DC Converters
logo
Murata Manufacturing Co...
MDC_UEI-15W MURATA-MDC_UEI-15W Datasheet
331Kb / 13P
   Isolated Wide Input Range 15-Watt DC/DC Converters
logo
Murata Power Solutions ...
UEI15 MURATA-PS-UEI15 Datasheet
277Kb / 5P
   Isolated Wide Input Range 15-Watt DC/DC Converters
logo
Murata Manufacturing Co...
UEI-15 MURATA-UEI-15 Datasheet
1Mb / 13P
   Isolated Wide Input Range 15-Watt DC/DC Converters
UEI15 MURATA-UEI15_11 Datasheet
700Kb / 16P
   Isolated Wide Input Range 15-Watt DC/DC Converters
logo
Murata Power Solutions ...
UEI15 MURATA-PS-UEI15_10 Datasheet
401Kb / 14P
   Isolated Wide Input Range 15-Watt DC/DC Converters
logo
RSG Electronic Componen...
EC2EE01 RSG-EC2EE01 Datasheet
49Kb / 1P
   15 WATT WIDE INPUT DC-DC CONVERTERS
EC3CB01 RSG-EC3CB01 Datasheet
773Kb / 1P
   15 WATT WIDE INPUT DC-DC CONVERTERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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