For more information, please visit the product page. date 04/01/2013 page 1 of 6 SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • up to 40 W isolated output wide input (2:1) 2"x2" six sided shielded metal case single, dual, and triple regulated outputs 1500 V isolation short circuit, over voltage and over temperature protection wide temperature (-25~71°C) efficiency up to 92% RoHS MODEL input voltage output voltage input current output current ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) no load (mA) full load (mA) max (mA) min (mA) max (mVp-p) typ (%) VCD40-D12-S2R5 12 9~18 2.5 200 2,367 10,000 0 50 88 VCD40-D12-S3R3 12 9~18 3.3 200 3,090 10,000 0 50 89 VCD40-D12-S5 12 9~18 5 200 3,745 8,000 0 50 89 VCD40-D12-S12 12 9~18 12 200 3,703 3,333 0 75 90 VCD40-D12-S15 12 9~18 15 200 3,702 2,666 0 75 90 VCD40-D12-D12 12 9~18 ±12 100 4,045 ±1,800 90 120 89 VCD40-D12-D15 12 9~18 ±15 100 3,889 ±1,400 70 150 90 VCD40-D12-T312 12 9~18 3.3/±12 200 2,784 6000/±400 600/±40 100 88 VCD40-D12-T315 12 9~18 3.3/±15 200 2,727 6000/±300 600/±30 100 88 VCD40-D12-T512 12 9~18 5/±12 200 3,750 6000/±400 600/±40 100 88 VCD40-D12-T515 12 9~18 5/±15 200 3,611 6000/±300 600/±30 100 90 VCD40-D24-S2R5 24 18~36 2.5 100 1,184 10,000 0 50 88 VCD40-D24-S3R3 24 18~36 3.3 100 1,545 10,000 0 50 89 VCD40-D24-S5 24 18~36 5 100 1,831 8,000 0 50 91 VCD40-D24-S12 24 18~36 12 100 1,811 3,333 0 75 92 VCD40-D24-S15 24 18~36 15 100 1,810 2,666 0 75 92 VCD40-D24-D12 24 18~36 ±12 100 1,978 ±1,800 90 120 91 VCD40-D24-D15 24 18~36 ±15 100 1,902 ±1,400 70 150 92 VCD40-D24-T312 24 18~36 3.3/±12 100 1,361 6000/±400 600/±40 100 90 VCD40-D24-T315 24 18~36 3.3/±15 100 1,333 6000/±300 600/±30 100 90 VCD40-D24-T512 24 18~36 5/±12 100 1,833 6000/±400 600/±40 100 90 VCD40-D24-T515 24 18~36 5/±15 100 1,806 6000/±300 600/±30 100 90 VCD40-D48-S2R5 48 36~72 2.5 50 585 10,000 0 50 89 VCD40-D48-S3R3 48 36~72 3.3 50 764 10,000 0 50 90 VCD40-D48-S5 48 36~72 5 60 926 8,000 0 50 90 VCD40-D48-S12 48 36~72 12 60 916 3,333 0 75 91 VCD40-D48-S15 48 36~72 15 60 906 2,666 0 75 92 VCD40-D48-D12 48 36~72 ±12 50 1,000 ±1,800 90 120 90 VCD40-D48-D15 48 36~72 ±15 50 962 ±1,400 70 150 91 cui.com For more information, please visit the product page. CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER MODEL input voltage date 04/01/2013 │ page 2 of 6 output voltage input current output current ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) no load (mA) full load (mA) max (mA) min (mA) max (mVp-p) typ (%) VCD40-D48-T312 48 36~72 3.3/±12 50 688 6000/±400 600/±40 100 89 VCD40-D48-T315 48 36~72 3.3/±15 50 690 6000/±300 600/±30 100 89 VCD40-D48-T512 48 36~72 5/±12 50 938 6000/±400 600/±40 100 88 VCD40-D48-T515 48 36~72 5/±15 50 903 6000/±300 600/±30 100 90 notes: 1. ripple and noise are measured at 20 Hz BW PART NUMBER KEY VCD40 - D XX - X XXX Base Number Input Voltage Output Voltage Output: S = single D = dual T = triple INPUT parameter conditions/description operating input voltage under voltage lockout 12 12 24 24 48 48 Vin Vin Vin Vin Vin Vin power power power power power power input filter PI type min typ max units 9 18 36 12 24 48 18 36 72 Vdc Vdc Vdc 8.8 8.0 17 16 34 32 Vdc Vdc Vdc Vdc Vdc Vdc up 8.8 V down 8.0 V up 17 V down 16 V up 34 V down 32 V OUTPUT parameter conditions/description min single and dual output models line regulation1 triple output models main auxillary single and dual output models load regulation2 max units ±0.5 % ±1.0 ±3.0 % % ±0.5 ±1.0 % % dual positive output models 3.3V 5V ±1.5 ±4.0 % % triple output models main auxillary ±1.0 ±4.0 % % ±1.5 % single output models voltage accuracy typ dual positive output models 3.3V 5V ±1.5 ±3.0 % % triple output models main auxillary ±1.5 ±5.0 % % cui.com For more information, please visit the product page. CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER date 04/01/2013 │ page 3 of 6 OUTPUT parameter conditions/description max units cross regulation3 +3.3V +5V min typ ±1.0 ±4.0 % % voltage balance dual output models ±2.0 % transient response 75-100% step load change ±5% error band 300 µs external trim adjust range single and dual output models dual positive output models ±10 ±5 current limit 110 switching frequency 140 350 temperature coefficient Notes: % % % kHz ±0.02 %/°C max units 3.6 3.9 6.2 15 18 Vdc Vdc Vdc Vdc Vdc max units 1. measured from high line to low line 2. measured from full load to 10% load 2. measured from max. load to 10% load, other output at 10% load PROTECTIONS parameter conditions/description short circuit protection continuous, hiccup min over temperture protection over-voltage protection typ 110 2.5V 3.3V 5V 12V 15V zener diode clamp °C SAFETY AND COMPLIANCE parameter conditions/description min typ isolation voltage 1,500 Vdc insulation resistance 1,000 MΩ RoHS compliant yes ENVIRONMENTAL parameter conditions/description min operating temperature -40 1 case temperature1 storage temperature Notes: -55 1. measured from high line to low line DERATING CURVES Load (%) 100 80 60 40 20 -40 -20 0 20 40 60 80 Ambient Temperature (°C) cui.com 100 120 typ max units 85 °C 100 °C 105 °C For more information, please visit the product page. CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER date 04/01/2013 │ page 4 of 6 MECHANICAL parameter conditions/description dimensions 2 x 2 x 0.4 (50.8 x 50.8 x 10.2 mm) min case material black coated copper with non-conductive base typ max units inch weight 65 g MECHANICAL DRAWING units: inches (mm) tolerance: x.xx = ±0.02, x.xxx = ±0.010 (x.x = ±0.5, x.xx = ±0.25) pin tolerance ±0.05mm PIN CONNECTIONS SINGLE OUTPUT DUAL OUTPUT DUAL POSITIVE TRIPLE OUTPUT PIN FUNCTION FUNCTION FUNCTION FUNCTION 1 +Vin +Vin +Vin +Vin 2 -Vin -Vin -Vin -Vin 3 on/off on/off on/off on/off 4 NC no pin +3.3Vo +Aux. out 5 -sense +Vo com(5V RTN) common 6 +sense common trim -Aux. out 7 +Vo common NC +Vo 8 -Vo -Vo +5 Vo -Vo (common) 9 trim trim com(5V RTN) NC REMOTE ON/OFF CONTROL logic compatibility CMOS or Open Collector TTL EC-on >+5.5 Vdc or Open Circuit EC-off <1.8 Vdc shutdown idle current 10 mA control common referenced to input minus TRIPLE OUTPUT LOADING TABLE1 EXTERNAL OUTPUT TRIMMING PIN VOLTAGE 7 AMPERES min2 typ +5 0.50 3.5 8,5 ±12 0.10 0.31 8,5 ±15 0.10 0.25 Output may optionally be externally trimmed (±10%) with a fixed resistor or an external trimpot as shown. Notes: PIN 7 10 K PIN 6 TRIM UP TRIM DOWN TRIM UP/DOWN PIN 5 cui.com 1. Maximum total power from all outputs is limited to 25 watts but no output should exceed its maximum current. 2. Minimum current on each output is required to maintain specified regulation. For more information, please visit the product page. CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER date 04/01/2013 │ page 5 of 6 1. The value of Rtrim-up defined as: Rtrim - up = ( 2. The output Voltage 3.3V,12V and 15V value of Rtrim are defined as below: R1x Vr ) - Rt (KΩ) Vo - Vo , nom Rtrim - up = ( Where: R trim-up is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. Rtrim - down = R1x ( R1 ,Rt and Vr are internal to the unit and are defined in Table 1. For example, to trim-up the output voltage of 5.0V module (VCD40-D48-S5) by 5% to 5.25V, R trim-up is calculated as follows: Vo – Vo,nom = 5.25 – 5.0 = 0.25V R1 = 2.32 Kohm Rt = 8.2 Kohm , Vr= 2.5 Rtrim - up = Vr x R1x ( R 2 + R3) ) - Rt (K Ω) (Vo - Vo , nom ) x R 2 Vr x R1 - 1) - Rt (K Ω) (Vo , nom - Vo ) x R 2 Where: R trim-up is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. R1, R2, R3, Rt and Vr are internal to the unit and are defined in Table 2. Figure 1. Trim-up Voltage Setup 2.32 x 2.5 - 8.2 = 15 (K Ω) 0.25 +Vout +Sense +Vin Trim The value of R trim-down defined as: Rtrim - down = R-Load R adj,up R1 x (Vo - Vr ) - Rt (K Ω) Vo , nom - Vo -Sense -Vout -Vin Figure 2. Trim-down Voltage Setup Where: R trim-down is the external resistor in Kohm. Vo,nom is the nominal output voltage. Vo is the desired output voltage. +Vout +Sense +Vin R1 ,Rt and Vr are internal to the unit and are defined in Table 1. R adj,down For example, to trim-down the output voltage of 5.0V module (VCD40-D48-S5) by 5% to 4.75V, R trim-down is calculated as follows : R-Load Trim Vo,nom – Vo = 5.0 – 4.75 = 0.25 V R1 = 2.32 Kohm R t = 8.2 Kohm , Vr=2.5 Rtrim - down = -Sense -Vout -Vin 2.32 x ( 4.75 - 2.5) - 8.2 = 12.68 (K Ω) 0.25 Table 1 - Trim Resistor Values Model Number Output Voltage(V) R1 (Kohm) Rt (Kohm) Vr VCD40-D24-S5 VCD40-D48-S5 5.0 2.32 8.2 2.5 Table 2 - Trim Resistor Values Model Number Output Voltage(V) R1 (Kohm) R2 (Kohm) R3 (Kohm) Rt (Kohm) Vr VCD40-D24-S3R3 VCD40-D48-S3R3 3.3V 2.74 1.8 0.27 9.1 1.24 VCD40-D24-S12 VCD40-D48-S12 12V 6.8 2.4 2.32 22 2.5 VCD40-D24-S15 VCD40-D48-S15 15V 8.06 2.4 3.9 27 2.5 In order to trim the voltage up or down one needs to connect the trim resistor either between the trim pin and -Vo for trim-up and between trim pin and +Vo for trim-down. The output voltage trim range is ±10%. This is shown in Figures 1 and 2: Note: All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VCD40 │ DESCRIPTION: DC-DC CONVERTER date 04/01/2013 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 06/28/2007 1.01 layout update, addition of triple output loading table 10/09/2009 1.02 new template applied, V-Infinity branding removed 09/07/2012 spec updated 04/01/2013 1.03 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.