For more information, please visit the product page. date 07/11/2013 page 1 of 5 SERIES: VIAS1-SIP │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • • • isolated 1 W output regulated dual voltage output small footprint industry standard 10 pin DIP package UL94-V0 package no heatsink required 1,000 Vdc isolation temperature range: -40°C~+85°C no external component required efficiency up to 66% RoHS input voltage MODEL output voltage output current output power ripple1 noise1 efficiency max (W) max (mVp-p) max (mVp-p) typ (%) typ (Vdc) range (Vdc) (Vdc) min (mA) max (mA) VIAS1-S5-D5-SIP 5 4.75 ~ 5.25 ±5 ±10 ±100 1 20 100 54 VIAS1-S5-D9-SIP 5 4.75 ~ 5.25 ±9 ±6 ±56 1 20 100 64 VIAS1-S5-D12-SIP 5 4.75 ~ 5.25 ±12 ±5 ±42 1 20 100 64 VIAS1-S5-D15-SIP 5 4.75 ~ 5.25 ±15 ±4 ±33 1 20 100 64 VIAS1-S12-D5-SIP 12 11.4 ~ 12.6 ±5 ±10 ±100 1 20 100 55 VIAS1-S12-D9-SIP 12 11.4 ~ 12.6 ±9 ±6 ±56 1 20 100 60 VIAS1-S12-D12-SIP 12 11.4 ~ 12.6 ±12 ±5 ±42 1 20 100 66 VIAS1-S12-D15-SIP 12 11.4 ~ 12.6 ±15 ±4 ±33 1 20 100 64 VIAS1-S24-D5-SIP 24 22.8 ~ 25.2 ±5 ±10 ±100 1 20 100 54 VIAS1-S24-D9-SIP 24 22.8 ~ 25.2 ±9 ±6 ±56 1 20 100 64 VIAS1-S24-D12-SIP 24 22.8 ~ 25.2 ±12 ±5 ±42 1 20 100 64 VIAS1-S24-D15-SIP 24 22.8 ~ 25.2 ±15 ±4 ±33 1 20 100 64 Notes: 1. ripple and noise are measured at 20 MHz BW PART NUMBER KEY VIAS1 -SXX -DXX -SIP Base Number Input Voltage cui.com Output Voltage For more information, please visit the product page. CUI Inc │ SERIES: VIAS1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 2 of 5 INPUT parameter conditions/description min typ max units operating input voltage 5 V model 12 V model 24 V model 4.75 11.4 22.8 5 12 24 5.75 12.6 25.2 Vdc Vdc Vdc no load power consumption 10% nominal power (typical) min typ max units 0.25 % OUTPUT parameter conditions/description line regulation For Vin change of 1%, full load load regulation 10% to 100% full load ±1 % voltage accuracy 100% full load ±3 % switching frequency 100% load, nominal input 100 temperature coefficient kHz 0.03 %/°C max units PROTECTIONS parameter conditions/description short circuit protection continuous, automatic recovery min typ 1 s SAFETY AND COMPLIANCE parameter conditions/description isolation voltage tested for 1 minute 1,000 min Vdc isolation resistance at 500 Vdc 1,000 MΩ RoHS compliant yes 3,500,000 hrs MTBF typ max units ENVIRONMENTAL parameter conditions/description min case operating temperature storage temperature storage humidity non-condensing temperature rise 100% load lead temperature 1.5 mm from the case for 10 seconds typ max units -40 85 °C -55 125 °C 95 % 25 °C 300 °C 15 cui.com For more information, please visit the product page. CUI Inc │ SERIES: VIAS1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 3 of 5 DERATING CURVES Load (%) 100 80 60 40 20 -40 -20 0 20 40 60 71 80 100 120 Ambient Temperature (°C) MECHANICAL parameter conditions/description min dimensions 27.5 x 9.50 x 12.0 (1.08 x 0.37 x 0.47 inch) case material Plastic (UL94-V0) typ max units mm weight 5.2 g MECHANICAL DRAWING units: mm (inches) tolerance: ±0.25 (±0.010) pin section tolerance: ±0.10 mm (±0.004) 27.5 0 (1.083) R ECOMMENDED FO OTPRINT +0.020 (0.1 6 0 0 4.10 0 12.00 ( 0. 472) +0.50 ) B ottom v iew,grid:2.54mm( 0.1inc h), diameter:1:00mm(0.039i nch) 1 2 7 PIN CONNECTIONS 2.32 (0.091) 1 2 7 9 10 9.50 ( 0.374 ) 1.25 (0.049) PIN 2.54 (0.10 0) cui.com FUNCTION 1 Vin 2 GND 7 +Vo 9 -Vo 10 0V 9 10 For more information, please visit the product page. CUI Inc │ SERIES: VIAS1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 4 of 5 APPLICATION NOTES 1. Requirement on output load To ensure this module can operate efficiently and reliably, a minimum load is specified for this kind of DC/DC converter in addition to a maximum load (namely full load). During operation, make sure the specified range of input voltage is not exceeded, the minimum output load is not less than 10% of the full load, that this product should never be operated under no load! If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company’s products with a lower rated output power (VIAS1-SIP series). 2. Filtering In some circuits which are sensitive to noise and ripple, a filtering capacitor may be added to the DC/DC output end and input end to reduce the noise and ripple. However, the capacitance of the output filter capacitor must proper. If the capacitance is too big, a startup problem might arise. For every channel of output, providing the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor refer to the EXTERNAL CAPACITOR TABLE. To get an extreme low ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, which may produce a more significant filtering effect. It should also be noted that the inductance and the frequency of the “LC” filtering network should be staggered with the DC/DC frequency to avoid mutual interference (see figure 1). 3. Overload Protection Under normal operating conditions, the output circuit of these products has no protection against over-current and short-circuits. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. External Capacitor Table Note: Vin External capacitor Vout External capacitor 5 Vdc 4.7 uF 5 Vdc 4.7 μF 12 Vdc 2 .2uF 9 Vdc 2.2 μF 24 Vdc 1 uF 12 Vdc 1.0 μF -- -- 15 Vdc 0.47 μF All specifications measured at 25°C, humidity <75%, nominal input voltage, and full load unless otherwise noted. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VIAS1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 5 of 5 REVISION HISTORY rev. description date 1.0 initial release 06/19/2006 1.01 new template applied 01/11/2008 1.02 new template applied, V-Infinity branding removed 09/07/2012 updated spec 07/11/2013 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.