For more information, please visit the product page. date 12/16/2013 page 1 of 9 SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • up to 75 W isolated output rugged metal enclosure with integrated heat sink 4:1 input range (9~36 Vdc, 18~75 Vdc) single output from 3.3~48 Vdc 1,500 Vdc isolation over current, over temperature, over voltage, and short circuit protections • remote on/off • efficiency up to 84% MODEL input voltage output voltage output current output power ripple and noise1 efficiency range (Vdc) (Vdc) max (A) max (W) max (mVp-p) typ (%) VHK75W-Q24-S3R3 9 ~ 36 3.3 15 50 100 77 VHK75W-Q24-S5 9 ~ 36 5 15 75 100 80 VHK75W-Q24-S12 9 ~ 36 12 6.25 75 150 81.5 VHK75W-Q24-S15 9 ~ 36 15 5 75 150 82.5 VHK75W-Q24-S24 9 ~ 36 24 3.12 75 240 83 VHK75W-Q24-S48 9 ~ 36 48 1.56 75 480 80 VHK75W-Q48-S3R3 18 ~ 75 3.3 15 50 100 78 VHK75W-Q48-S5 18 ~ 75 5 15 75 100 81 VHK75W-Q48-S12 18 ~ 75 12 6.25 75 150 82.5 VHK75W-Q48-S15 18 ~ 75 15 5 75 150 83.5 VHK75W-Q48-S24 18 ~ 75 24 3.12 75 240 84 VHK75W-Q48-S48 18 ~ 75 48 1.56 75 480 82 Note: 1. Ripple and noise are measured at full load, 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output. The 48 Vdc output models only require the 1µF ceramic capacitor across the output. PART NUMBER KEY VHK75W - QXX - SXX X Base Number Input Voltage Output Voltage cui.com Remote On/Off Control "blank" = positive logic N = negative logic For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 2 of 9 INPUT parameter conditions/description operating input voltage 24 Vdc input models 48 Vdc input models typ max units 9 18 24 48 36 75 Vdc Vdc 24 Vdc input power up power down 8.8 8 Vdc Vdc 48 Vdc input power up power down 17 16 Vdc Vdc under voltage shutdown positive logic CTRL1 negative logic models ON (open circuit) models OFF (0~0.8 Vdc) models ON (0~0.8 Vdc) models OFF (open circuit) filter pi filter input fuse 15A time delay fuse for 24 Vin models, 8A time delay fuse for 48 Vin models Note: min 1. Open collector refer to -Vin OUTPUT parameter conditions/description maximum capacitive load 3.3 and 5 V output models 12 V output models 15 V output models 24 V output models 48 V output models line regulation2 load regulation 2 min typ max units 15,000 6,250 5,000 3,120 1,560 μF μF μF μF μF measured from high line to low line ±0.2 % measured from full load to zero load ±0.2 % ±1 % voltage accuracy adjustability ±10 % switching frequency 300 kHz transient response 25% step load change 500 temperature coefficient Note: ±0.03 µs %/°C 2. A 47 μF aluminum capacitor is required on the output for 48 Vdc output models. PROTECTIONS parameter conditions/description short circuit protection continuous over current protection % nominal output current min over voltage protection over temperature protection max units 110 160 % 115 140 % shutdown restart threshold typ 100 70 °C °C SAFETY AND COMPLIANCE parameter conditions/description isolation voltage for 1 minute: input to output; input to case; output to case min isolation resistance RoHS typ max units 1,500 Vdc 10 MΩ 2011/65/EU (CE) ENVIRONMENTAL parameter conditions/description min operating temperature see derating curve storage temperature cui.com typ max units -40 85 °C -55 105 °C For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 3 of 9 MECHANICAL parameter conditions/description dimensions 4.23 x 4.01 x 1.50 (107.5 x 101.76 x 38.0 mm) min case material steel and aluminum extrusion weight typ MECHANICAL DRAWING units: inch[mm] tolerance: X.XX = ±0.02[±0.5] X.XXX = ±0.010[±0.25] wire range: 22~12 AWG screw size: #6-32 PIN CONNECTIONS FUNCTION 1 -Vo 2 -S 3 trim 4 +S 5 +Vo 6 case 7 on/off -Vin 9 +Vin 4.23[107.5] 4.09[104.0] 1.50[38.0] Jumper 3.58[91.0] 4.006[101.76] 8 2.76[70.0] cui.com units inch 502 PIN max g For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 4 of 9 DERATING CURVES VHK75W Power Derating Curves At Nominal Input 120.00% Natural Convection Relative Output Power - % of nominal output 100.00% 0.5 m/S (100LFM) 1.0 m/S (200LFM) 80.00% 1.5 m/S (300LFM) 60.00% 2.0 m/S (400LFM) 40.00% 2.5 m/S (500LFM) 3.0 m/S (600LFM) 20.00% 3.5 m/S (700LFM) 0.00% -40 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature - degrees C TEST CONFIGURATION Figure 1 Table 1 To Oscilloscope External components L1 +Vin +Vo + Vin - C1 Cin R-Load -Vin Note: L1 12μH C1 220μF, ESR < 0.1Ω at 100 KHz Cin 100μF, ESR < 0.1Ω at 100 KHz -Vo Input reflected-ripple current is measured with an inductor L1 and Capacitor C1 to simulate source impedance. EMC RECOMMENDED CIRCUITS EN55022 CLASS A Figure 2 Recommended Circuit for EN55022 Class A (for all 3.3, 5, 12, 15, & 24 Vdc output models) L2 L1 +Vin C1 +Vin C2 C3 +Vo +S +Vo DC/DC Converter -S -Vin -Vin C4 cui.com CASE -Vo -Vo For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 5 of 9 EMC RECOMMENDED CIRCUITS (CONTINUED) EN55022 CLASS A Figure 3 Recommended Circuit for EN55022 Class A (for all 48 Vdc output models) CY6 CY5 L1 +Vin +Vin C1 +Vo +Vo +S C2 DC/DC Converter -S -Vin -Vin -Vo -Vo Table 2 Class A Recommended Components Model C11 C21 C31 C42 CY52 CY62 L1 L2 VHK75W-Q24-S3R3 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q24-S5 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q24-S12 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q24-S15 NC 47 μF/50 V 47 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q24-S24 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q24-S48 220 μF/50 V 100 μF/50 V NC NC 1000 pF/2 kV 1000 pF/2 kV 0.223 mH NC VHK75W-Q48-S3R3 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q48-S5 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q48-S12 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q48-S15 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q48-S24 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV NC NC Short 3.4 μH VHK75W-Q48-S48 56 μF/100 V 39 μF/100 V NC NC 1000 pF/2 kV 470 pF/2 kV 0.223 mH NC Note: 1. Aluminum capacitors. 2. Ceramic capacitors. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 6 of 9 EMC RECOMMENDED CIRCUITS (CONTINUED) EN55022 CLASS B Figure 4 Recommended Circuit for EN55022 Class B (for all 3.3, 5, 12, & 15 Vdc output models as well as VHK75W-Q48-S24) L1 L2 +Vin +Vin +Vo +Vo +S C1 C2 C3 C6 DC/DC Converter -S -Vin -Vin -Vo CASE C4 -Vo C5 Figure 5 Recommended Circuit for EN55022 Class B (for VHK75W-Q24-S24) L1 L2 +Vin +Vin +Vo +Vo +S C1 DC/DC Converter C2 -S -Vin -Vin C4 CASE -Vo -Vo C6 C5 C7 Table 3 Class B Recommended Components (for all 3.3, 5, 12, 15, & 24 Vdc output models) Model C11 C21 C31 C42 C52 C62 C72 L1 L2 VHK75W-Q24-S3R3 47 μF/50 V 47 μF/50 V 47 μF/50 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q24-S5 47 μF/50 V 47 μF/50 V 47 μF/50 V 2200 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q24-S12 47 μF/50 V 47 μF/50 V 47 μF/50 V 3300 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q24-S15 47 μF/50 V 47 μF/50 V 47 μF/50 V 2200 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q24-S24 100 μF/50 V 100 μF/50 V NC 1000 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 0.12 mH 0.34 mH VHK75W-Q48-S3R3 47 μF/100 V 47 μF/100 V 47 μF/100 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q48-S5 47 μF/100 V 47 μF/100 V 47 μF/100 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q48-S12 47 μF/100 V 47 μF/100 V 47 μF/100 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q48-S15 47 μF/100 V 47 μF/100 V 47 μF/100 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH VHK75W-Q48-S24 47 μF/100 V 47 μF/100 V 47 μF/100 V 2200 pF/2 kV 2200 pF/2 kV 1000 pF/2 kV NC 1.5 mH 3.4 μH Note: 1. Aluminum capacitors. 2. Ceramic capacitors. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 7 of 9 EMC RECOMMENDED CIRCUITS (CONTINUED) EN55022 CLASS B Figure 6 Recommended Circuit for EN55022 Class B (for all 48 V output models) CY5 L1 +Vin CY6 +Vin C1 C2 +Vo +S +Vo DC/DC Converter -S -Vin -Vin -Vo CY8 -Vo CY7 Table 4 Class B Recommended Components (for all 48 V output models) Model C11 C21 CY52 CY62 CY72 CY82 L1 VHK75W-Q24-S48 220 μF/50 V 220 μF/50 V 1500 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 0.223 mH VHK75W-Q48-S48 56 μF/100 V 56 μF/100 V 1000 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 1000 pF/2 kV 0.223 mH Note: 1. Aluminum capacitors. 2. Ceramic capacitors. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 8 of 9 APPLICATION NOTES 1. Output Voltage Trimming Leave open if not used. Figure 7 Formula for Trim Resistor Application Circuit for Trim pin +Vin +Vo +Sense Trim R-Load Trim up Rtrim - up = ( R2 )) R 2 + R3 R2R3 )(KΩ) Vo - Vo, nom R 2 + R3 R1(Vr - Vf ( R trim-up -Vin +Vin -Sense Rtrim - down = -Vo +Vo +Sense R trim-down Trim down R-Load Trim -Vin -Sense -Vo Note: Rtrim-up is the external resistor in KΩ Rtrim-down is the external resistor in KΩ VO, nom is the nominal output voltage VO is the desired output voltage R1, R2, R3, and Vr are internal (see Table 5). Table 5 Note: R1(Vo - Vr) - R2 (KΩ) Vo, nom - Vo Vout (Vdc) R1 (KΩ) R2 (KΩ) R3 (KΩ) Vr (V) Vf (V) 3.3 3 12 18 1.24 0.46 5 2.32 8.2 0 2.5 0 12 9.1 51 18 2.5 0.46 15 12 82 18 2.5 0.46 24 20 100 20 2.5 0.46 48 36 270 14 3.085 1.15 1. All specifications are measured at Ta=25°C, nominal input voltage and full output load unless otherwise specified. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHK75W │ DESCRIPTION: DC-DC CONVERTER date 12/16/2013 │ page 9 of 9 REVISION HISTORY rev. description date 1.0 initial release 03/28/2007 1.01 new template applied 12/21/2011 1.02 misc. updates and corrections 03/13/2012 1.03 updated mechanical drawing 03/27/2012 1.04 V-Infinity branding removed 06/27/2012 1.05 updated spec 03/14/2013 1.06 added trimming and EMI information 12/16/2013 The revision history provided is for informational purposes only and is believed to be accurate. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website. CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use. CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.