Isolated Wide Input Single Dual Output DC/DC Converters Input Vol

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Isolated Wide Input Single Dual Output DC/DC Converters Input Vol

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NDS6 Series
Isolated Wide Input Single Dual Output DC/DC Converters
Input Voltage Output Voltage Nom.
NDS6D2405C NDS6D2412C NDS6D2415C NDS6S2405C NDS6S2412C NDS6S2415C
Output Current Min. Load
±0.06 ±0.025 ±0.020 0.12 0.05 0.04
Order Code2
Input Current Efficiency Current Ripple ±100% 100% Shut Noise Min. Typ. Load Load Load Down
±0.6 ±0.250 ±0.200 85.5 85.5 87.5
MTTF1 kHrs
FEATURES
RoHS compliant Wide range voltage input Operating temperature range -40°C 85°C Short circuit protection 0.003% Typical load regulation 1.5kVDC Isolation Efficiency from Nominal input Single dual outputs Power density 0.94W/cm3 Optional remote On/Off 94V-0 Package materials electrolytic capacitors noise
INPUT CHARACTERISTICS
Parameter
Voltage range Reflected ripple current
Conditions
NDS6D24 NDS6S24 types NDS6D24 NDS6S24 types
Min.
Typ.
Max.
Units
OUTPUT CHARACTERISTICS
Parameter
Rated power Voltage point accuracy Line regulation Load regulation Cross regulation
Postive negative except NDS6D2405 negative output
Conditions
Min.
Typ.
Max.
Units
line high line
total load 100% total load voltage change negative output when positive load varies from 12.5% 37.5% with negative load fixed
0.01 0.003
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage Resistance Capacitance
Conditions
Flash tested second Viso 1kVDC
Min.
1500
Typ.
Max.
Units
PRODUCT OVERVIEW
NDS6 series DC/DC converters offer single dual output voltages from input voltage range 18-36V. NDS6 housed industry standard package with standard pinout. NDS6 packaged metal case improved shielding also encapsulated superior thermal performance. Versions with optional remote on/off control also available. Applications include telecommunications, battery powered systems, process control distributed power systems.
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection Internal power dissipation Lead temperature 1.0mm from case seconds JEDEC JESD22-B106 Minimum output load specification3 Control input voltage Input voltage, NDS6 input types Continuous 2.7W 260°C rated load each output ±18V
Calculated using MIL-HDBK-217F with nominal input voltage full load. order with optional control pin, prefix with "E". example NDS6D0505EC. Operation below minimum load cause increased output ripple. specifications typical TA=25°C, nominal input voltage rated output current unless otherwise specified.
full details www.murata-ps.com/rohs
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
2009-10-09
KDC_NDS6C.B02 Page
NDS6 Series
Isolated Wide Input Single Dual Output DC/DC Converters
GENERAL CHARACTERISTICS1
Parameter
Switching frequency Module unconnected) Control input Module
Conditions
Min.
Typ.
Max.
Units
TEMPERATURE CHARACTERISTICS
Parameter
Operation Storage Case temperature rise above ambient Thermal shutdown 100% Load, VIN, Still Air, Case Temperature
Conditions
Min.
Typ.
Max.
Units
APPLICATION NOTES
Control
This provides function, which puts converter into power mode, when voltage applied less than 0.8V. When high un-connected, converter
NDS6D Cross Regulation
Load regulation best when positive negative loads balanced. When loads asymmetric, negative output tightly regulated positive output. meet datasheet specification, minimum load output load current required each output. NDS6D used with much lighter loading negative output voltage rise above maximum datasheet specification.
Output Capacitors
NDS6 series does require output capacitors meet datasheet specification. meet datasheet specification, output capacitance should exceed: Output Voltage Output Capacitance
TECHNICAL NOTES
ISOLATION VOLTAGE
Test', `Flash Tested', `Withstand Voltage', `Proof Voltage', `Dielectric Withstand Voltage' `Isolation Test Voltage' terms that relate same thing, test voltage, applied specified time, across component designed provide electrical isolation, verify integrity that isolation. Murata Power Solutions NDS6 series DC/DC converters 100% production tested their stated isolation voltage. This 1.5kVDC second. question commonly asked "What continuous voltage that applied across part normal operation?" part holding specific agency approvals, such NDS6 series, both input output should normally maintained within SELV limits i.e. less than 42.4V peak, 60VDC. isolation test voltage represents measure immunity transient voltages part should never used element safety isolation system. part could expected function correctly with several hundred volts offset applied continuously across isolation barrier; then circuitry both sides barrier must regarded operating unsafe voltage further isolation/insulation systems must form barrier between these circuits user-accessible circuitry according safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
well known that repeated high-voltage isolation testing barrier component actually degrade isolation capability, lesser greater degree depending materials, construction environment. NDS6 series ferrite core, with additional insulation between primary secondary windings enameled wire. While parts expected withstand several times stated test voltage, isolation capability does depend wire insulation. material, including this enamel (typically polyurethane) susceptible eventual chemical degradation when subject very high applied voltages thus implying that number tests should strictly limited. therefore strongly advise against repeated high voltage isolation testing, absolutely required, that voltage reduced from specified test voltage. This consideration equally applies agency recognized parts rated better than functional isolation where wire enamel insulation always supplemented further insulation system physical spacing barriers.
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
2009-10-09
KDC_NDS6C.B02 Page
NDS6 Series
Isolated Wide Input Single Dual Output DC/DC Converters
RoHS COMPLIANCE INFORMATION
This series compatible with RoHS soldering systems with peak wave solder temperature seconds. termination finish this product series Gold flash (0.05-0.10 micron) over Nickel Preplate. series backward compatible with Sn/Pb soldering systems. further information, please visit www.murata-ps.com/rohs
CHARACTERISATION TEST METHODS
Ripple Noise Characterisation Method
Ripple noise measurements performed with following test configuration.
RLOAD
multilayer ceramic capacitor, voltage rating minimum times output voltage DC/DC converter tantalum capacitor, voltage rating minimum times output voltage DC/DC converter with less than 100m 100nF multilayer ceramic capacitor, general purpose resistor, carbon film, +/-1% tolerance termination coax cable through ferrite toroid Resistive load maximum power rating DC/DC converter. Connections should made twisted wires
Measured values multiplied obtain specified values.
Differential Mode Noise Test Schematic
DC/DC Converter OSCILLOSCOPE
SUPPLY Input
INPUT
Output
LOAD
EFFICIENCY LOAD Input, Dual Output
Efficiency Load Efficiency
Input, Single Output
Load
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
2009-10-09
KDC_NDS6C.B02 Page
NDS6 Series
Isolated Wide Input Single Dual Output DC/DC Converters
TEMPERATURE DERATING NDS6D2405C
Output Power Output Power Ambient Temperature
NDS6D2412C
still
still
Ambient Temperature
NDS6D2415C
Output Power
NDS6S2405C
Output Power
still
still
Ambient Temperature
Ambient Temperature
NDS6S2412C
NDS6S2415C
Output Power
Output Power
still
still
Ambient Temperature
Ambient Temperature
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
2009-10-09
KDC_NDS6C.B02 Page
NDS6 Series
Isolated Wide Input Single Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS CONNECTIONS
Optional
Function Single
-VIN -VIN On/Off +VOUT -VOUT +VIN +VIN
Dual
-VIN -VIN On/Off -VOUT +VOUT +VIN +VIN
0.787 (20.0)
NDS6D0505C
XYYWW
1.26 (32.0)
TUBE OUTLINE DIMENSIONS
0.394 (10.0)
0.04±0.006 (1.00±0.15)
0.335 (8.5)
0.0177-0.0217 (0.45-0.55)
0.600 (15.24) 0.200 (5.08) 0.200 (5.08)
0.807 (20.5)
Tube length 20.47 (520)) dimensions inches ±0.010 0.25mm).
Quantity:
0.093 (2.36)
RECOMMENDED FOOTPRINT DETAILS
HOLES 0.039 (1.0)
0.600 (15.24)
(2.54)
0.100 (2.54)
0.180 (4.57)
dimensions inches (mm) ±0.020 (0.5) except tolerance ±0.010 (0.25). pins 0.100 (2.54) pitch within 0.010 (0.25) true position. copper case connected output (-VOUT) pin. Care needed design this circuit board which converter mounted. side tracks must contact edge case underside unit.
(2.54)
Optional dimensions inches ±0.010 0.25mm).
Weight: 16.4g Typ.
Murata Power Solutions, Inc. Cabot Boulevard, Mansfield, 02048-1151 U.S.A.
9001 14001 REGISTERED
Murata Power Solutions, Inc. makes representation that products circuits described herein, other technical information contained herein, will infringe upon existing future patent rights. descriptions contained herein imply granting licenses make, use, sell equipment constructed accordance therewith. Specifications subject change without notice. 2009 Murata Power Solutions, Inc.
www.murata-ps.com/locations
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
2009-10-09
KDC_NDS6C.B02 Page
0.906 (23.0)
0.256 (6.50)
0.02 (0.5)

Isolated Wide Input Single Dual Output DC/DC Converters Input Vol

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