For more information, please visit the product page. date 07/11/2013 page 1 of 5 SERIES: VIFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • • • isolated 1 W output regulated single voltage output small footprint industry standard pinout UL94-V0 package no heatsink required 3,000 Vdc isolation temperature range: -40°C~+85°C no external component required high efficiency up to 73% RoHS input voltage MODEL output voltage output current output power ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) min (mA) max (mA) max (W) max (mVp-p) typ (%) VIFSD1-S5-S5-SIP 5 4.75 ~ 5.25 5 15 150 1 15 69 VIFSD1-S5-S9-SIP 5 4.75 ~ 5.25 9 12 111 1 15 70 VIFSD1-S5-S12-SIP 5 4.75 ~ 5.25 12 9 83 1 15 71 VIFSD1-S5-S15-SIP 5 4.75 ~ 5.25 15 7 67 1 15 72 VIFSD1-S12-S5-SIP 12 11.4 ~ 12.6 5 15 150 1 15 69 VIFSD1-S12-S9-SIP 12 11.4 ~ 12.6 9 12 111 1 15 71 VIFSD1-S12-S12-SIP 12 11.4 ~ 12.6 12 9 83 1 15 72 VIFSD1-S12-S15-SIP 12 11.4 ~ 12.6 15 7 67 1 15 72 VIFSD1-S24-S5-SIP 24 22.8 ~ 25.2 5 15 150 1 15 70 VIFSD1-S24-S9-SIP 24 22.8 ~ 25.2 9 12 111 1 15 72 VIFSD1-S24-S12-SIP 24 22.8 ~ 25.2 12 9 83 1 15 73 VIFSD1-S24-S15-SIP 24 22.8 ~ 25.2 15 7 67 1 15 73 Notes: 1. Ripple and noise are measured at 20 MHz BW with 220 μF aluminum capacitor accross the input. Add 470 μF aluminum, 1 μF ceramic, 10 μF tantalum capacitors across output. PART NUMBER KEY VIFSD1 -SXX -SXX -SIP Base Number Input Voltage cui.com Output Voltage For more information, please visit the product page. CUI Inc │ SERIES: VIFSD1-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 voltage accuracy 100% full load switching frequency 100% load, nominal input 1 % ±3 % 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 3,000 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: VIFSD1-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 19.6 x 6.0 x 10.2 (0.77 x 0.24 x 0.4 inch) case material Plastic (UL94-V0) typ 2.1 MECHANICAL DRAWING units: mm Layout Side View 2.54 1 2 4 PIN CONNECTIONS 1 2 4 cui.com units mm weight Bottom View max PIN FUNCTION 1 +Vin 2 -Vin 4 -Vo 6 +Vo g For more information, please visit the product page. CUI Inc │ SERIES: VIFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 4 of 5 APPLICATION NOTES 1. Input filtering To reduce the reflected ripple current and minimize EMI, especially when the converter input is more than 2” away from the DC source, it is recommended to connect a low ESR electrolytic capacitor between Vin and Gnd. The values suggested are as shown in Table 1. If additional filtering is required, the capacitance may be increased, or expanded to an LC network as shown in Figure 1. Table 1 2. Input Voltage (Vdc) External Input Capacitance (μF) 5V 4.7 12 V 2.2 24 V 1.0 Recommended Circuit The VIFSD1-SIP series has been tested according to the following recommended testing circuit. This series should be tested under load. (see Figure 1) L L Figure 1 +Vout +Vin DC DC C -Vin 3. C -Vout Output filtering An output capacitor as shown in Table 2 may be used to reduce output ripples and noise. requirements as shown in Table 2. Output capacitance may be increased for additional filtering, but should not exeed 10μF. It can also be expanded to an LC network as in Figure 1. Vout (Vdc) Table 2 External Output Capacitance (μF) 5 V 10 9 V 4.7 12 V 2.2 15 V 1.0 4. Minimum loading The converter needs a minimum of 10% loading to maintain output regulation. Operation under no-load conditions will not cause immediate damages but may reduce reliability, and cause performance not to meet specifications. 5. Protection The converter has minimal protection against input over-voltage or output over-load, and may be permanently damaged if exposed to these conditions. An input clamping device can be used for input voltage limiting. An input fuse or an output fuse can also be used to protect against over-loading. 6. Unregulated input As fixed input converters, this series can accept voltages within a limited range of the nominal input. Otherwise the converter may not function properly or may be damaged. An optional regulator can be used at the input to bring voltage within regulation, as shown in Figure 2. Figure 2 +Vin +Vout REG DC DC -Vin 7. Note: -Vout 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. When the environment temperature is higher than 70°C, the product output power should be less then 60% of the rated power. 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: VIFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 07/11/2013 │ page 5 of 5 REVISION HISTORY rev. description date 1.0 initial release 01/01/2006 1.01 new template applied 07/13/2011 1.02 V-Infinity branding removed 09/04/2012 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.