NTF Series Isolated 1W Wide Input DC/DC Converters SELECTION GUIDE Order Code Input Output Input Current Output Voltage Current Voltage Nominal 100% Load 0% Load Shutdown 100% Load V V mA mA μA mA Efficiency from 60.5% NTFS0505MC NTFS0512MC NTFS0515MC NTFS1205MC NTFS1212MC NTFS1215MC NTFS2405MC NTFS2412MC NTFS2415MC Wide temperature performance –40°C to 85°C INPUT CHARACTERISTICS FEATURES RoHS compliant UL 94V-0 Package material Parameter Lead frame technology Voltage range 5 5 5 12 12 12 24 24 24 5V, 12V, & 24V Input 5V, 12V & 15V Output Reflected ripple current Internal SMD construction 5 12 15 5 12 15 5 12 15 200 83 66 200 83 66 200 83 66 25 30 60 10 12 15 6 8 9 72 55 80 70 34 33 96 48 50 Conditions Continuous operation, 5V input types Continuous operation, 12V input types Continuous operation, 24V input types xx05 output types xx12 output types xx24 output types Efficiency Min. MTTF Typ. % kHrs 320 300 320 110 130 120 120 60 60 60.5 63.5 60.5 68.0 65.0 65.0 65.0 65.0 65.0 62 67 63 73 66 67 70 68 67 921 1118 869 1281 1175 1283 1379 1278 1223 Min. Typ. Max. Units 4 9 18 5 12 24 12 6 6 6 15 36 V Typ. Max. Units mA p-p 1kVDC Isolation OUTPUT CHARACTERISTICS MTTF up to 1.4 million hours Parameter Conditions Power density 0.7W/cm3 Voltage set point accuracy With external input/output capacitors ±1 ±2 % Multi layer ceramic capacitors Line regulation Low line to high line, 0.2 1 % PRODUCT DESCRIPTION Load regulation 10% load to 100% load, with external input/ output capacitors 0.1 1 % 100 150 +10 mV p-p %VOUT Typ. Max. Units 700 kHz The NTF 1W series of surface mount DC/DC converters offer a tightly regulated output voltage in a true surface mount device, available with three 2:1 input voltage ranges of 4-6V, 9-15V and 18-36V. The NTF series’ employs leadframe technology and transfer moulding techniques to bring all of the benefits of IC style packaging to hybrid circuitry. Co-planarity of the lead positions is based upon IEC 191-6:1990. The devices are suitable for all applications where high volume production is envisaged. Ripple & Noise Voltage trim range Min. BW=DC to 20MHz, all output types -10 GENERAL CHARACTERISTICS Parameter Conditions Min. Switching frequency 50 ABSOLUTE MAXIMUM RATINGS Short-circuit protection Lead temperature 1.5mm from case for 10 seconds Minimum load Input voltage VIN, NTF05 types Input voltage VIN, NTF12 types Input voltage VIN, NTF24 types 15s 245°C See graph 10V 17.5V 40V 1 Calculated using MIL-HDBK-217F with nomial input voltage at full load (ground benign) at 25ºC. All specifications typical at TA=25ºC, nominal input voltage and rated output current unless otherwise specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 1 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Operation Storage Cooling Case temperature rise above ambient See derating graphs -40 -50 Typ. Max. Units 85 130 Free air convection 30 ºC ISOLATION CHARACTERISTICS Parameter Conditions Min. Isolation test voltage Resistance Capacitance Flash tested for 1 second Viso= 500VDC 1000 1 Typ. 10 25 Max. Units VDC GΩ pF TECHNICAL NOTES ISOLATION VOLTAGE ‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage, applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. Murata Power Solutions NTF series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second. A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” For a part holding no specific agency approvals, such as the NTF series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard requirements. REPEATED HIGH-VOLTAGE ISOLATION TESTING It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. The NTF series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 2 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters TEMPERATURE DERATING NTFS0505 NTFS0512 120 120 100 100 Hi Vin Hi Vin Nom Vin Nom Vin 80 Maximum load (%) Maximum load (%) 80 60 Lo Vin 40 20 Lo Vin 60 40 20 0 0 -40 -20 0 20 40 60 -40 80 -20 0 Temperature (ºC) 20 40 60 80 60 80 Temperature (ºC) NTFS0515 NTFS1205 120 120 Hi Vin 100 100 Hi Vin Nom Vin Nom Vin 80 Maximum load (%) Maximum load (%) 80 Lo Vin 60 40 20 60 Lo Vin 40 20 0 0 -40 -20 0 20 40 60 80 -40 -20 0 Temperature (ºC) 20 40 Temperature (ºC) NTFS1212 NTFS1215 120 120 Hi Vin Hi Vin 100 100 Nom Vin Nom Vin 80 Maximum load (%) Maximum load (%) 80 Lo Vin 60 40 20 60 Lo Vin 40 20 0 0 -40 -20 0 20 Temperature (ºC) www.murata-ps.com 40 60 80 -40 -20 0 20 40 60 80 Temperature (ºC) Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 3 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters TEMPERATURE DERATING NTFS2405 NTFS2412 120 120 100 100 Hi Vin Hi Vin 80 Maximum load (%) 80 Maximum load (%) Nom Vin Nom Vin 60 Lo Vin 40 20 60 Lo Vin 40 20 0 0 -40 -20 0 20 40 60 80 Temperature (ºC) -40 -20 0 20 40 60 80 Temperature (ºC) NTFS2415 120 Hi Vin 100 Nom Vin Maximum load (%) 80 60 Lo Vin 40 20 0 -40 -20 0 20 40 60 80 Temperature (ºC) www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 4 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters MINIMUM LOAD NTFS05XX NTFS12XX 30 30 25 25 20 Minimum Load (%) Minimum Load (%) 20 12V&15V 5V 15 12V&15V 5V 15 10 10 5 5 0 9 0 4 4.2 4.4 4.6 4.8 5 5.2 5.4 5.6 5.8 6 10 11 12 13 14 15 Input Voltage (V) Input Voltage (V) NTFS24XX 30 5V 25 Minimum Load (%) 20 12V&15V 15 10 5 0 18 20 22 24 26 28 30 32 34 36 Input Voltage (V) RoHS COMPLIANCE INFORMATION This series is compatible with RoHS soldering systems with a peak reflow solder temperature of 245ºC and time above liquidus of 217ºC for 80 seconds. The pin termination finish on this product series is Gold, plating thickness 0.1 microns minimum. The series is backward compatible with Sn/Pb soldering systems. For further information, please visit www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 5 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters APPLICATION NOTES Recommended input & output capacitors Value Although these converters will work without external capacitors, they are necessary in order to guarantee the full parametric performance over the full line and load range. All parts have been tested and characterized using the following values and test circuit. CIN 10μF, 200V good low esr capacitor COUT 22μF, 16V good low esr capacitor Test circuit, 5V, 12V and 15V output + VOUT + VIN CIN NTF COUT - VOUT - VIN ON/OFF Pin This provides an OFF function, which puts the converter into a low power mode. When the pin is un-connected, the converter is on. The circuit used must be able to sink a peak curent of 50mA to guarantee turning the converter off. The circuit should be an open collector arrangement, an example circuit is shown below. Voltages should not be applied directly to the ON/OFF pin. The BC547 should be fitted close to the NTF ON/OFF pin to prevent the addition of excess wiring capacitance. CTRL 47kΩ BC547 VCONTROL NTF 100nF - VIN CONTROL PIN CIRCUIT INPUT VOLTAGE VCONTROL Min. Max. Module ON 0 0.2 Module OFF 1.6 30 Units V V Output voltage adjustment The trim resistor equations are: RDOWN = (VDOWN - L) x G VNOM - VDOWN RUP = GxL VUP - L - K TRIM UP Where: NTFS0505MC NTFS1205MC, NTFS2405MC NTFSXX12MC NTSFXX15MC G L K 30100 100000 38300 49900 1.24 1.24 2.5 2.5 3.76 3.76 9.5 12.5 TRIM DOWN +VIN +VOUT +VOUT +VIN RDOWN NTF TRIM NTF TRIM RUP -VOUT -VOUT When the output voltage is trimmed up, output current must be derated so that the maximum output power is not exceeded. www.murata-ps.com Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 6 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters PACKAGE SPECIFICATIONS MECHANICAL DIMENSIONS PIN CONNECTIONS 0.700 (17.78) 0.600 (15.24) 0.710 (18.03) 0.690 (17.53) 26 24 22 18 16 14 DETAIL A 0.500 (12.70) REFERENCE PLANE NTFS0505MC 0.020 (0.50) XYYWW 1 3 5 9 ±5.0° x12 PINS 0.0416-0.0534 (1.0565-1.3565) 0.008 (0.2) 11 S 13 12 PINS 0.029 (0.74) 0.025 (0.64) 0.008 (0.2) 0.100 (2.54) S 0.248 (6.30) 0.228 (5.80) Function 1 3 5 9 11 -VIN +VIN NA NA -VOUT 13 +VOUT 14 16 18 22 24 26 NA TRIM NA ON/OFF NA NA 2.74 (0.108) MAX DETAIL A 0.130 (3.30) 0.258 (6.55) 0.232 (5.90) Pin NA - Not available for electrical connection. S SEATING PLANE 0.010 (0.25) 0.004 (0.10) All dimensions in inches ±0.01 (mm ±0.25mm). All pins on a 0.1 (2.54) pitch. 0.012 (0.30) 0.008 (0.20) Weight: 2.8g TUBE OUTLINE DIMENSIONS +0.8 +0.031 0.228 -0.024 (5.8-0.60 ) 0.819 (20.80) All dimensions in inches ±0.02 (mm±0.5) www.murata-ps.com .*/ 0.024±0.006 (0.60±0.15) RECOMMENDED FOOTPRINT DETAILS 0.567 (14.40) x12 PINS 0.004 (0.1) S 0.06 (1.52) MAX +0.006 +0.15 0.112 -0.010 (2.85 -0.25 ) All dimensions in inches ±0.02 (mm±0.5). Tube length : 18.70±0.079 (475±2.0). Tube Quantity : 25 Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 7 of 8 NTF Series Isolated 1W Wide Input DC/DC Converters TAPE & REEL SPECIFICATIONS TAPE OUTLINE DIMENSIONS ."9 COVER TAPE ±0.002 (0.05) +0.004 +0.10 Ø1.50 -0.00 (Ø0.059 -0.000 ) REEL OUTLINE DIMENSIONS 0.722 (18.33) 0.024 (0.60) MAX 0.945 (24.00) 0.726 (18.43) DIRECTION OF UNREELING 0.394 (10.00) Ø0.079 (Ø2.00) MIN 0.157 (4.00) 0.079 (2.00) ."9 NTFS0505MC 1.260±0.012 (32.00±0.30) All dimensions in inches ±0.02 (mm±0.5) 0.256 (6.50) 0.284 (7.20) 1.118 (28.40) 0.008±0.002 (0.20±0.05) 0.559 (14.20) +0.002 +0.05 R0.030 -0.000 (R0.75 -0.00 ) XYYWW 0.069 (1.75) "5)6#4&$5*0/ .*/ All dimensions in inches ±0.02 (mm±0.5) REEL PACKAGING DETAILS 53"*-&34&$5*0/ .*/ (00%4&/$-0463& 4&$5*0/ -&"%&34&$5*0/ .*/ All dimensions in inches ±0.02 (mm±0.5) Reel Quantity : 400 Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 USA: Mansfield (MA), Tel: (508) 339 3000, email: [email protected] Canada: Toronto, Tel: (866) 740 1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] www.murata-ps.com email: [email protected] ISO 9001 & ISO 14001 REGISTERED Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2009 Murata Power Solutions, Inc. www.murata-ps.com $"33*&35"1&45"35 .*/ Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries email: [email protected], tel: +44 (0)1908 615232 KDC_NTFC.A02 Page 8 of 8