NPH15S SERIES Isolated 15W Single Output DC-DC Converters SELECTION GUIDE Nominal Input Voltage Output Voltage Output Current (V) 24 24 24 24 48 48 48 48 (V) 3.4 5.1 12.1 15.1 3.4 5.1 12.1 15.1 (mA) 4.4 3.0 1.3 1.0 4.4 3.0 1.3 1.0 Order Code1 NPH15S2403i NPH15S2405i NPH15S2412i NPH15S2415i NPH15S4803i NPH15S4805i NPH15S4812i NPH15S4815i FEATURES ■ High Efficiency to 89% ■ Power Density up to 2.4W/cm3 (39W/in3 ) Current Limit (A)Min 7.5 5.0 2.5 2.0 7.5 5.0 2.5 2.0 Efficiency (A)Max 11.0 7.5 3.7 3.0 11.0 7.5 3.7 3.0 (%) 81 84 86 87 83 85 88 89 INPUT CHARACTERISTICS Parameter Conditions Voltage Range Continuous operation, 24V input types Continuous operation, 48V input types MIN NOM MAX Units 18 36 24 48 36 75 V ■ 1.5kV Input to Output Isolation ■ Industry Standard Pinout OUTPUT CHARACTERISTICS ■ UL 1950 Recognised Parameter Conditions MAX Units ■ Non Latching Current Limit Voltage Set Point Error 50% load 0.5 % Overall Voltage Error Case temperature –40°C to 110°C Load 0% - 100% Input specified range 2.5 % 250 ppm°C ■ Constant 350kHz Frequency ■ Versatile Control Options ■ Continuous Rating to 30W at 40°C Without Heatsink ■ Operation to Zero Load ■ Protected Against Load Faults ■ Internal Over Temperature Protection ■ Uses No Electrolytic Capacitors Temperature Coefficient of Output Voltage (slope) Deviation of Output Voltage Line Regulation Load Regulation Ripple MIN Temperature MIN-MAX TYP 0.5 Operating voltage range, 50% load 0% - 100% rated load 2 rms 1 % 0.1 0.5 % % mV MAX Units 70 ■ UL 94V-0 Package Materials CONTROL CHARACTERISTICS DESCRIPTION The NPH15S series of DC-DC Converters combines ease of application with versatility. The pin pattern is based on the popular industry standard, but two additional pins may optionally be fitted to provide a variety of features not commonly found on units of this type. High efficiency enables full rating to be achieved in a small package without heatsinking, and a high surge capability will provide for start-up and transient loads, whilst being thermally protected against sustained overload. Overload protection of the “constant current” type ensures start-up into complex load conditions. The copper case achieves efficient heat transfer and screening. The product range has been recognised by Underwriters Laboratory (UL) to UL 1950 for operational insulation, file number E179522 applies. Parameter Conditions Voltage Trimming Range Remote Switch Input 3 At rated load, Trim control at either output Not operating (voltage relative to input negative) Start Delay Synchronisation Switching Frequency 3 MIN TYP ±10 Operating, open circuit voltage Time from application of valid input voltage to output being in specification Specified drive signal % -15 0 1.5 9 10 11 25 50 mS 350 440 395 kHz kHz 320 330 V ABSOLUTE MAXIMUM RATINGS Input voltage, 24V input types Input voltage, 48V input types Output Voltage Output trim control Synchronisation/shutdown control –0.5V to 40V 4 –0.5V to 80V 4 –0.3V to regulated voltage –1V to +30V ±15V relative to input return ISOLATION CHARACTERISTICS Parameter Conditions Isolation Voltage Resistance Flash tested for 1 second Viso=500VDC MIN TYP 1500 1 4000 MAX Units VDC GΩ UL 1950 RECOGNISED File Number E179522. www.dc-dc.com 1 If optional pins ADJ and SS are required (as indicated in the pin connections diagram) prefix the ending “i” with an E when ordering, e.g. NPH15S4803Ei. 2 A minimum load of 10% of rating is recommended for typical applications. 3 Optional where fitted. 4 Absolute maximum value for 30 seconds. Prolonged operation may damage the product. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. NPH15S SERIES Isolated 15W Single Output DC-DC Converters ENVIRONMENTAL Parameter Conditions MIN Case Temperature Storage Relative Humidity Thermal Protection Full load Absolute MAX internal temperatur e Non condensing 85°C Operates at case temperatur e –40 –40 Power (W) Temperature (°C) Power (W) 15.0 15.0 13.7 11.7 80 85 90 9.8 8.8 7.8 20 NPH15S4805 NPH15S4812 NPH15S4815 2405 15 2403 10 5 0 -40 Case Temperature NPH15S4803 2415 25 MAX power rating with case temperature maintained by external means (eg forced air cooling) NPH15S2415 2412 30 40 50 60 70 NPH15S2412 °C °C % °C 35 Temperature (°C) NPH15S2405 Units 110 125 85 THERMAL PERFORMANCE UL 1950 recognition MAX permissible loads for a given ambient temperature for any NPH15S model NPH15S2403 MAX 110 THERMAL CHARACTERISTICS Part Number TYP 100°C 19 22 25 26 20 23 28 30 105°C 16 19 22 24 17 20 26 28 110°C 12 15 19 21 13 16 23 25 -20 0 20 40 60 80 Ambient Temperature (°C) 100 120 35 Units 4815 30 4812 25 W 20 4805 15 4803 10 W 5 0 -40 -20 0 20 40 60 80 Ambient Temperature (°C) 100 120 MECHANICAL DIMENSIONS 50.00 5.08 SS + VOUT +VIN 25.00 20.32 -VIN ADJ 0V 9.96 10.00 14.84 4.50 3.70 Ø 1.04 0.90 C&D Technologies (NCL) Limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. Please check with your supplier or visit our web site to ensure that you have the current and complete specification for your product before use. For information and instructions on use, please consult the NPH SERIES APPLICATION NOTES. © C&D Technologies (NCL) Limited 2000 Instructions for use are available from www.dc-dc.com Weight: 36g All dimensions in mm ±0.25mm All pins on a 2.54mm pitch and within ±0.25mm of true position C&D Technologies (NCL) Ltd Tanners Drive, Blakelands North Milton Keynes MK14 5BU, England Tel: +44 (0)1908 615232 Fax:+44 (0)1908 617545 email: [email protected] NDC NPH15S.2 No part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from C&D Technologies (NCL) Limited. 20.32 www: http://www.dc-dc.com C&D Technologies (NCL), Inc. 8917 Glenwood Avenue, Raleigh NC 27612, USA Tel: +1 (919) 571-9405 Fax: +1 (919) 571-9262 email: [email protected]