FEATURES • 50 WATTS MAXIMUM OUTPUT POWER • SINGLE OUTPUT UP TO 15A • COMPACT 2.40 X 2.28 X 0.50 INCH PACKAGE • HIGH EFFICIENCY UP TO 91% • INPUT RANGE FROM 18VDC TO 36VDC AND 36VDC TO 75VDC • FIXED SWITCHING FREQUENCY(300KHz) • HALT TESTED • INDUSTRY STANDARD FOOTPRINT • ADJUSTABLE OUTPUT VOLTAGE • NO MINIMUM LOAD • UNDER-VOLTAGE LOCKOUT • INPUT TO OUTPUT ISOLATION (BASIC INSULATION) • CE MARK MEETS 2006/95/EC, 93/68/EEC AND 2004/108/EC • UL60950-1, EN60950-1 AND IEC60950-1 LICENSED • ISO9001 CERTIFIED MANUFACTURING FACILITIES • COMPLIANT TO RoHS EU DIRECTIVE 2002/95/EC APPLICATIONS Wireless Network Telecom/Datacom Industry Control System Distributed Power Architectures Semiconductor Equipment OPTIONS Negative & Positive logic Remote on/off, Pin length DESCRIPTION HEC50-S single output DC/DC converters provide up to 50 watts of output power in an industry standard half-brick package and footprint. These units are specifically designed to meet the power needs of low-voltage silicon. All models feature a wide input range, trimmable output voltage and a 15A current rating. T E C H N I C A L S P E C I F I C AT I O N All specifications are typical at nominal input, full load and 25ºC otherwise noted OUTPUT SPECIFICATIONS Output power Voltage accuracy Minimum load Full load and nominal Vin Voltage adjustability (Note 5) Line regulation Load regulation INPUT SPECIFICATIONS 50 Watts, max. Input voltage range ± 1.5% 0% Input filter See table See table 10% of Vout Ripple and noise (Note 6) 20MHz bandwidth 100mVp-p ±0.02% / ºC, max. Temperature coefficient Transient response recovery time 25% load step change 200μS Over voltage protection threshold (Hiccup) 115% ~ 130% of Vout Over current protection threshold 110% ~ 140% of Iout Rated Short circuit protection Hiccup, automatics recovery GENERAL SPECIFICATIONS Efficiency Isolation voltage Isolation resistance Isolation capacitance Switching frequency Approvals and standard Case material Weight MTBF (Note 1) Input to Output Input to Case Output to Case 18 – 36VDC 36 – 75VDC L-C type 50VDC 100VDC 25mS, typ. 25mS, typ. 50mAp-p 20mAp-p 17VDC 34VDC 15VDC 32VDC 24V input 48V input Nominal Vin and Power up Start up time constant resistive load Remote ON/OFF 24V input Input reflected ripple current 48V input 24V input Start-up voltage 48V input 24V input Shutdown voltage 48V input Remote ON/OFF (Note 7) (Negative logic) ON=Short or 0V < Vr < 1.2V, IIN=1mA max. OFF=Open or 3V < Vr < 15V, IIN=50μA max. (Positive logic) ON=Open or 3V < Vr < 15V, IIN=50μA max. OFF=Short or 0V < Vr < 1.2V, IIN=1mA max. Input current of remote control pin Nominal Vin -0.5mA ~ 0.5mA Remote off state input current Nominal Vin 20mA + 10% , -20% Input surge voltage 100mS max LL to HL at Full Load No load to Full load Remote sense (Note 5) 24V nominal input 48V nominal input See table 1600 VDC, min. 1000 VDC, min. 1000 VDC, min. 7 10 ohms, min. 2500 pF, max. 300 KHz, typ. IEC60950-1, UL60950-1, EN60950-1 Open with Aluminum base-plate 50g (1.76oz) 6 BELLCORE TR-NWT-000332 3.000 x 10 hrs 5 MIL-HDBK-217F 2.560 x 10 hrs ENVIRONMENTAL SPECIFICATIONS -40ºC to +100ºC (with derating) 110ºC 95% -55ºC to +125ºC MIL-STD-810F MIL-STD-810F Operating base-plate temperature range (Note 8) Over temperature protection Humidity max, Non-condensing Storage temperature range Thermal shock Vibration EMC CHARACTERISTICS EMI (Note 9) Radiated immunity Fast transient (Note 10) Surge (Note 10) Conducted immunity EN55022 EN61000-4-3 EN61000-4-4 EN61000-4-5 EN61000-4-6 Page 1 of 3 10 V/m ± 2KV ± 1KV 10 Vr.m.s Class A Perf. Criteria A Perf. Criteria B Perf. Criteria B Perf. Criteria A Issued Date：2008/05/21 Output Current Input Current (4) Model Number Input Range Output Voltage Min. load HEC50-24S1P8 18 – 36 VDC 1.8 VDC 0mA HEC50-24S2P5 18 – 36 VDC 2.5 VDC 0mA 15 A 5 mV 8 mV 100mA 1.86 A 87 HEC50-24S3P3 18 – 36 VDC 3.3 VDC 0mA 15 A 7 mV 10 mV 120mA 2.40 A 89 Full load Line regulation Load regulation 15 A 4 mV 6 mV No load(3) Full load(2) 120mA Eff (%) 1.36 A 86 HEC50-24S05 18 – 36 VDC 5 VDC 0mA 10 A 10 mV 15 mV 120mA 2.40 A 90 HEC50-24S15 18 – 36 VDC 15 VDC 0mA 3.3 A 30 mV 45 mV 190mA 2.40 A 89 HEC50-48S1P8 36 – 75 VDC 1.8 VDC 0mA 15 A 4 mV 6 mV 80mA 0.67 A 87 HEC50-48S2P5 36 – 75 VDC 2.5 VDC 0mA 15 A 5 mV 8 mV 80mA 0.93 A 88 HEC50-48S3P3 36 – 75 VDC 3.3 VDC 0mA 15 A 7 mV 10 mV 110mA 1.19 A 90 HEC50-48S05 36 – 75 VDC 5 VDC 0mA 10 A 10 mV 15 mV 90mA 1.19 A 91 HEC50-48S15 36 – 75 VDC 15 VDC 0mA 3.3 A 30 mV 45 mV 130mA 1.20 A 90 Note 1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC. MIL-HDBK-217F Notice2 @Ta=25 ºC, Full load(Ground, Benign, controlled environment). 2. Maximum value at nominal input voltage and full load. 3. Typical value at nominal input voltage and no load. 4. Typical value at nominal input voltage and full load. 5. Maximum output deviation is 10% inclusive of remote sense. If remote sense is not being used, the + sense should be connected to its corresponding +OUTPUT and likewise the –sense should be connected to its corresponding –OUTPUT. 6. Measured with a 1μF M/C and a 10μF T/C. 7. The negative/ positive logic and pin length are optional ( see table ). The pin voltage is referenced to –Vin. 8. Heat sink is optional and P/N: 7G-0021A-F, 7G-0022A-F, 7G-0023A-F, 7G-0024A-F. 9. The HEC50 meets EN55022 class A and class B only with external components connected with the input pins. 10. An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5. The filter capacitor Power Mate suggest: Nippon chemi-con KY series, 220μF/100V, ESR 48mΩ. 11. BASEPLATE GROUNDING：Base-plate should be grounded at one of the four screw bolts prior to operation. 12. The converter is provided by basic insulation. Pin 1,2,3,4,6,7,8. DIA. 0.040 (1.02mm) Pin 5,9. DIA. 0.080 (2.03mm) All dimensions in inches (mm) Tolerance :x.xx±0.02 (x.x±0.5) x.xxx±0.01 (x.xx±0.25) Pin pitch tolerance ±0.01 (0.25) Pin dimension tolerance ±0.004(0.1) PIN CONNECTION EXTERNAL OUTPUT Output can be externally trimmed by using the method shown below. TRIM UP TRIM DOWN 7 6 RU 8 RD 7 PIN Define Diameter 1 2 3 4 5 6 7 8 9 - INPUT CASE CTRL + INPUT - OUTPUT - SENSE TRIM + SENSE + OUTPUT 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.08 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.08 Inches PRODUCT OPTIONS TABLE Option Suffix Negative remote ON/OFF logic, 0.20” pin length (standard) - Negative remote ON/OFF logic, 0.145” pin length -L Negative remote ON/OFF logic, 0.11” pin length -K Positive remote ON/OFF logic, 0.20” pin length -P Positive remote ON/OFF logic, 0.145” pin length -S Positive remote ON/OFF logic, 0.11” pin length -M Example：HEC50-48S3P3-P Page 2 of 3 Issued Date：2008/05/21 Recommended Filter for EN55022 Class B Compliance The components used in the above figure, together with the manufacturers’ part numbers for these components, are as follows: C1 C2 C3 C4 C5 220μF/100V 2.2μF /100V 2.2μF /100V 2.2μF /100V 100μF/100V C6 HEC50xxx C7 C8 2.2μF /100V 2.2μF /100V 1.5nF /3KV C9 C10 1.5nF /3KV 1.5nF /3KV C11 C12 L1 L2 1.5nF /3KV 1.5nF /3KV 1400.4μH 304.98μH Recommended EN55022 Class B Filter Circuit Layout Page 3 of 3 Issued Date：2008/05/21