FEATURES • 75 WATTS MAXIMUM OUTPUT POWER • SINGLE : OUTPUT CURRENT UP TO 20A DUAL : TOTAL OUTPUT CURRENT UP TO 15A; UP TO 100% LOAD IMBALANCE • COMPACT 2.40 X 2.28 X 0.50 INCH PACKAGE • HIGH EFFICIENCY UP TO 90% • INPUT RANGE FROM 36VDC TO 75VDC • FIXED SWITCHING FREQENCY (300KHz) • HALT TESTED • INDUSTRY STANDARD FOOTPRINT • ADJUSTABLE OUTPUT VOLTAGE, INDEPENDENTLY REGULATED OUTPUTS • INPUT TO OUTPUT ISOLATION (BASIC INSULATION) • CE MARK MEETS 2006/95/EC, 93/68/EEC AND 2004/108/EC • SINGLE: UL60950-1, EN60950-1 AND IEC60950-1 LICENSED • DUAL:DESIGN MEET 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 Remote on/off, Pin length DESCRIPTION HEC75-SERIES DC/DC converters provide up to 75 watts of output power in an industry standard half-brick package and footprint. All models feature a wide input range, trimmable output voltage and a 20A current rating (15A for dual output). 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 INPUT SPECIFICATIONS Output power Voltage accuracy Minimum load 75 Watts, max. Full load and nominal Vin ± 1.5% 0% + 10% , -20% + 10% , -10% See table See table 10% of Vout 100mVp-p ±0.02% / ºC, max. Single (Note 5) Dual Line regulation LL to HL at FL Load regulation No Load to Full Load Remote sense Single (Note 5) Ripple and noise 20MHz bandwidth (Note 6) Temperature coefficient Transient response recovery time 25% load step change 200μS Over voltage protection threshold 115% ~ 130% of Vout (Non-latching Hiccup) Maximum total output current I 1 + I 2 Dual 15A Over current protection threshold 110% ~ 140% of Iout Rated Short circuit protection Hiccup, automatics recovery Voltage adjustability GENERAL SPECIFICATIONS Efficiency Isolation voltage Isolation resistance Input to Output Input to Case Output to Case See table 1600 VDC, min. 1000 VDC, min. 1000 VDC, min. 7 10 ohms, min. Isolation capacitance 2500 pF, max. Switching frequency 300 KHz, typ. Approvals and standard (Note 7) IEC60950-1, UL60950-1, EN60950-1 Case material Open with Aluminum base-plate Single 63g (2.22oz) Weight Dual 70g (2.47oz) 6 BELLCORE TR-NWT-000332 Single 2.000 x 10 hrs 5 Dual 1.300 x 10 hrs MTBF (Note 1) 5 MIL-HDBK-217F Single 2.170 x 10 hrs 5 1.080 x 10 hrs Dual Input voltage range 36 – 75VDC Input filter L-C type Input surge voltage 100mS max 100VDC Nominal Vin and Power up 25mS, typ. Start up time constant resistive load Remote ON/OFF 25mS, typ. Input reflected-ripple current 20mAp-p Start-up voltage 34VDC Shutdown voltage 32VDC Remote ON/OFF (Note 8) (Negative logic) ON=Short or 0V < Vr < 1.2V, IIN=1mA max. OFF=Open or 3V < Vr < 15V, IIN=50μA max. ON=Open or 3V < Vr < 15V, IIN=50μA max. (Positive logic) OFF=Short or 0V < Vr < 1.2V, IIN=1mA max. Input current of remote control pin Nominal Vin -0.5mA ~ 0.5mA 20mA Remote off state input current Nominal Vin ENVIRONMENTAL SPECIFICATIONS -40ºC to 100ºC (with derating) Operating base-plate temperature range (Note 9) Over temperature protection 110ºC Humidity max, Non-condensing 95% Storage temperature range -55ºC to 125ºC Thermal shock MIL-STD-810F Vibration MIL-STD-810F EMC CHARACTERISTICS EMI (Note 10) EN55022 Class A Radiated immunity EN61000-4-3 10 V/m Perf. Criteria A Fast transient (Note 11) EN61000-4-4 ± 2KV Perf. Criteria B Surge (Note 11) EN61000-4-5 ± 1KV Perf. Criteria B Conducted immunity EN61000-4-6 10 Vr.m.s Perf. Criteria A Page 1 of 4 Issued Date：2008/05/21 Output Current Model Number Input Range Output Voltage HEC75-48S1P8 36 – 75 VDC 1.8 VDC 0mA 20 A 4 mV HEC75-48S2P5 36 – 75 VDC 2.5 VDC 0mA 20 A HEC75-48S3P3 36 – 75 VDC 3.3 VDC 0mA HEC75-48S05 36 – 75 VDC 5.0 VDC HEC75-48S15 36 – 75 VDC 15 VDC Model Number Input Range Line Load Regulation Regulation Input Current (4) Eff (%) No (3) load Full (2) load 6 mV 120mA 0.926 A 85 5 mV 8 mV 90mA 1.255 A 87 20 A 7 mV 10 mV 120mA 1.618 A 90 0mA 15 A 10 mV 15 mV 130mA 1.838 A 90 0mA 5A 30 mV 45 mV 160mA 1.860 A 90 Min. load Full load Output Voltage V1 V2 Output Current I1 I2 (4) Line Regulation Load Regulation Eff (%) HEC75-48D3305 36 – 75 VDC 5 VDC 3.3 VDC 15 A 15 A 10/7 mV 15/10 mV 88 HEC75-48D3325 36 – 75 VDC 3.3 VDC 2.5 VDC 15 A 15 A 7/5 mV 10/8 mV 81 HEC75-48D0518 36 – 75 VDC 5 VDC 1.8 VDC 15 A 15 A 10/4 mV 15/6 mV 85 HEC75-48D3318 36 – 75 VDC 3.3 VDC 1.8 VDC 15 A 15 A 7/4 mV 10/6 mV 81 Note 1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at Tc=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. Single：Typical value at nominal input voltage and full load. Dual：Typical value at nominal input voltage and both outputs current are 7.5A. 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 M/C(for dual outputs) or 1μF M/C and a 10μF T/C(for single outputs) 7. Dual output safety approvals pending. 8. The negative / positive logic and pin length are optional. The pin voltage is referenced to -Vin. Single：Please see single output product options table. Dual：Please see dual output product options table. 9. Heat sink is optional and P/N: 7G-0021A-F, 7G-0022A-F, 7G-0023A-F, 7G-0024A-F. 10. The HEC75 meets EN55022 class A and class B only with external components connected with the input pins of the converter. 11. 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. 12. BASEPLATE GROUNDING：Base-plate should be grounded at one of the four screw bolts prior to operation. 13. The converter is provided by basic insulation. Page 2 of 4 Issued Date：2008/05/21 Single Output : 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 TRIMMING 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：HEC75-48S3P3-P Dual Output : Pin DIA. 0.040 (1.02mm) 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 TRIMMING Output can be externally trimmed by using the method shown below. ( ) for V2 output trim TRIM UP TRIM DOWN 9(6) 10(7) RD 10(7) RU 8(5) PIN Define Diameter 1 2 3 4 5 6 7 8 9 10 - INPUT CASE CTRL + INPUT + V2 -V2 (COM) V2 TRIM +V1 -V1 (COM) V1 TRIM 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches 0.04 Inches PRODUCT OPTIONS TABLE Option Suffix Positive remote ON/OFF logic, 0.20” pin length (standard) - Positive remote ON/OFF logic, 0.145” pin length -L Positive remote ON/OFF logic, 0.11” pin length -K Negative remote ON/OFF logic, 0.20” pin length -N Negative remote ON/OFF logic, 0.145” pin length -S Negative remote ON/OFF logic, 0.11” pin length -M Example：HEC75-48D3305-N Page 3 of 4 Issued Date：2008/05/21 Recommended Filter for Class B Compliance 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 HEC75xxx 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 4 of 4 Issued Date：2008/05/21