VHK50W-Q48-S24

Additional Resources: Product Page | 3D Model date 04/13/2022 page 1 of 9 SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • up to 50 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 83% MODEL input voltage output voltage output current output power ripple and noise1 efficiency range (Vdc) (Vdc) max (A) max (W) max (mVp-p) typ (%) VHK50W-Q24-S3R3 9 ~ 36 3.3 10 33 100 75 VHK50W-Q24-S5 9 ~ 36 5 10 50 100 79 VHK50W-Q24-S12 9 ~ 36 12 4.16 50 150 82 VHK50W-Q24-S15 9 ~ 36 15 3.33 50 150 82 VHK50W-Q24-S24 9 ~ 36 24 2.08 50 240 82 VHK50W-Q24-S28 9 ~ 36 28 1.78 50 280 82 VHK50W-Q24-S48 9 ~ 36 48 1.04 50 480 82 VHK50W-Q48-S3R3 18 ~ 75 3.3 10 33 100 76 VHK50W-Q48-S5 18 ~ 75 5 10 50 100 80 VHK50W-Q48-S12 18 ~ 75 12 4.16 50 150 83 VHK50W-Q48-S15 18 ~ 75 15 3.33 50 150 83 VHK50W-Q48-S24 18 ~ 75 24 2.08 50 240 83 VHK50W-Q48-S28 18 ~ 75 28 1.78 50 280 83 VHK50W-Q48-S48 18 ~ 75 48 1.04 50 480 83 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 VHK50W - QXX - SXXX Base Number Input Voltage Output Voltage cui.com Remote On/Off Control "blank" = positive logic N = negative logic Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ 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 28 V output models 48 V output models min typ 47 max units 10,000 4,160 3,330 2,080 1,780 1,040 μF μF μF μF μF μF line regulation measured from high line to low line ±0.2 % load regulation2 measured from full load to zero load ±0.2 % ±1 % 2 voltage accuracy 2 adjustability ±10 switching frequency transient response 300 25% step load change kHz 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 110 over voltage protection over temperature protection typ 115 shutdown restart threshold max units 160 % 140 100 70 % °C °C SAFETY AND COMPLIANCE parameter conditions/description min isolation voltage for 1 min: input/output; input/case; output/case isolation resistance RoHS typ max units 1,500 Vdc 10 MΩ 2011/65/EU (CE) ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curve -40 85 °C -55 105 °C storage temperature cui.com typ Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ page 3 of 9 MECHANICAL parameter conditions/description dimensions 4.23 x 4.01 x 1.50 [107.5 x 101.8 x 38.0 mm] min case material steel and aluminum extrusion weight typ units: inch[mm] general tolerance: ±0.04[±1.0] wire range: 22~12 AWG screw size: #6-32 connector tightening torque: 1.4 N∙m (max) PIN CONNECTIONS PIN FUNCTION 1 -Vo 2 -S 3 trim 4 +S 5 +Vo 6 case 7 on/off 8 -Vin 9 +Vin cui.com units inch 502 MECHANICAL DRAWING max g Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ page 4 of 9 DERATING CURVES TEST CONFIGURATION Figure 1 Table 1 External components Note: L1 12μH C1 220μF, ESR < 0.1Ω at 100 KHz Cin 100μF, ESR < 0.1Ω at 100 KHz 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, & 28 Vdc output models) cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ 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) Table 2 Class A Recommended Components Model C11 C22 C32 C41 L1 L2 Co min. VHK50W-Q24-S3R3 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC VHK50W-Q24-S5 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC VHK50W-Q24-S12 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC VHK50W-Q24-S15 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.5 μH NC VHK50W-Q24-S24 10 μF/50 V 100 μF/50 V 100 μF/50 V NC 1.5 mH 3.4 μH NC VHK50W-Q24-S28 NC 100 μF/50 V 100 μF/50 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q24-S48 NC 100 μF/50 V 100 μF/50 V NC Short 3.5 μH 47 μF VHK50W-Q48-S3R3 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S5 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S12 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S15 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S24 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S28 NC 100 μF/100 V 100 μF/100 V 2200 pF/2 kV Short 3.4 μH NC VHK50W-Q48-S48 NC 47 μF/100 V 47 μF/100 V 2200 pF/2 kV Short 3.5 μH 47 μF Note: 1. Ceramic capacitors 2. Aluminum capacitors cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ 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, & 24 Vdc output models) Figure 5 Recommended Circuit for EN55022 Class B (for all 28 Vdc output models) Figure 6 Recommended Circuit for EN55022 Class B (for all 48 Vdc output models) cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ page 7 of 9 EMC RECOMMENDED CIRCUITS (CONTINUED) EN55022 CLASS B Table 3 Class B Recommended Components Model C12 C22 C32 C41 C51 C61 L1 L2 Co min. VHK50W-Q24-S3R3 100 μF/50 V 100 μF/50 V 100 μF/50 V 3300 pF/2 kV NC NC 0.65 mH 1.5 μH NC VHK50W-Q24-S5 100 μF/50 V 100 μF/50 V 100 μF/50 V 2200 pF/2 kV NC NC 0.65 mH 1.5 μH NC VHK50W-Q24-S12 100 μF/50 V 100 μF/50 V 100 μF/50 V 3300 pF/2 kV NC NC 0.65 mH 1.5 μH NC VHK50W-Q24-S15 100 μF/50 V 100 μF/50 V 100 μF/50 V 2200 pF/2 kV NC NC 0.65 mH 1.5 μH NC VHK50W-Q24-S24 1 10 μF/50 V 100 μF/50 V 100 μF/50 V 2200 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV 1.5 mH 3.4 μH NC VHK50W-Q24-S28 100 μF/50 V 100 μF/50 V NC NC 1000 pF/2 kV NC 0.12 mH 0.34 mH NC VHK50W-Q24-S48 1 10 μF/50 V 100 μF/50 V 100 μF/50 V 4700 pF/2 kV 2200 pF/2 kV 1000 pF/2 kV 1.5 mH 3.4 μH 47 μF VHK50W-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 1.5 mH 3.4 μH NC VHK50W-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 1.5 mH 3.4 μH NC VHK50W-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 1.5 mH 3.4 μH NC VHK50W-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 1.5 mH 3.4 μH NC VHK50W-Q48-S24 47 μF/100 V 47 μF/100 V 47 μF/100 V 3300 pF/2 kV 3300 pF/2 kV 1000 pF/2 kV 1.5 mH 3.4 μH NC VHK50W-Q48-S28 100 μF/100 V 100 μF/100 V NC NC 1000 pF/2 kV NC 0.12 mH 0.34 mH NC VHK50W-Q48-S48 47 μF/100 V 47 μF/100 V 47 μF/100 V 4700 pF/2 kV 2200 pF/2 kV 1000 pF/2 kV 1.5 mH 3.4 μH 47 μF Note: 1. Ceramic capacitors 2. Aluminum capacitors cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ 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 Rtrim - up = ( Rtrim - down = R2 )) R 2 + R3 R2R3 )(KΩ) Vo - Vo, nom R 2 + R3 R1(Vr - Vf ( R1(Vo - Vr) - R2 (KΩ) Vo, nom - 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 4). Vout (Vdc) Table 4 Note: 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 28 23.7 150 16 2.5 0.46 48 36 270 14 2.5 0.46 1. All specifications are measured at Ta=25°C, nominal input voltage and full output load unless otherwise specified. cui.com R1 (KΩ) Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VHK50W │ DESCRIPTION: DC-DC CONVERTER date 04/13/2022 │ page 9 of 9 REVISION HISTORY rev. description date 1.0 initial release 10/11/2006 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 12/17/2013 1.07 company logo updated 02/08/2021 1.08 derating curve and figures updated 06/09/2021 1.09 mechanical tolerances updated 04/13/2022 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 techsupport@cui.com 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.