date 01/27/2012 page 1 of 5 SERIES: VFSD1-SIP Series │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • 1 W isolated output industry standard pinout unregulated single output (3.3~24 V) small footprint 3,000 V isolation short circuit protection temperature range (-40~85°C) high efficiency to 83% RoHS MODEL VFSD1-S3.3-S3.3-SIP input voltage output voltage output current output power ripple noise efficiency range (Vdc) (Vdc) min (mA) 3 ~ 3.6 3.3 UL60950 max (mA) max (W) max (mVp-p) typ (%) 31 303 1 100 69 NO VFSD1-S3.3-S5-SIP 3.3 ~ 3.6 5 20 200 1 100 74 NO VFSD1-S5-S3.3-SIP 4.5 ~ 5.5 3.3 30 303 1 100 73 NO VFSD1-S5-S5-SIP 4.5 ~ 5.5 5 20 200 1 100 72 YES VFSD1-S5-S9-SIP 4.5 ~ 5.5 9 12 111 1 100 76 YES VFSD1-S5-S12-SIP 4.5 ~ 5.5 12 9 83 1 100 79 YES VFSD1-S5-S15-SIP 4.5 ~ 5.5 15 7 67 1 100 78 YES VFSD1-S5-S24-SIP 10.8 ~ 13.2 24 5 42 1 150 79 NO VFSD1-S12-S5-SIP 10.8 ~ 13.2 5 20 200 1 100 70 YES VFSD1-S12-S9-SIP 10.8 ~ 13.2 9 12 111 1 100 75 YES VFSD1-S12-S12-SIP 10.8 ~ 13.2 12 9 83 1 100 78 YES VFSD1-S12-S15-SIP 10.8 ~ 13.2 15 7 67 1 100 79 YES VFSD1-S12-S24-SIP 10.8 ~ 13.2 24 5 42 1 150 79 NO VFSD1-S24-S3.3-SIP 21.6 ~ 26.4 3.3 31 303 1 100 70 NO VFSD1-S24-S5-SIP 21.6 ~ 26.4 5 20 200 1 100 71 YES VFSD1-S24-S9-SIP 21.6 ~ 26.4 9 12 111 1 100 76 YES VFSD1-S24-S12-SIP 21.6 ~ 26.4 12 9 83 1 100 78 YES VFSD1-S24-S15-SIP 21.6 ~ 26.4 15 7 67 1 100 80 YES VFSD1-S24-S15-SIP-A 21.6 ~ 26.4 15 7 67 1 150 83 NO VFSD1-S24-S24-SIP 21.6 ~ 26.4 24 5 42 1 150 77 NO Note: 1. Ripple and noise measured at 20 mHz BW cui.com CUI Inc │ SERIES: VFSD1-SIP Series │ DESCRIPTION: DC-DC CONVERTER date 01/27/2012 │ page 2 of 5 INPUT parameter conditions/description operating input voltage min typ max units 3 4.5 10.8 13.5 21.6 3.3 5 12 15 24 3.6 5.5 13.2 16.5 26.4 Vdc Vdc Vdc Vdc Vdc min typ max units ±1.5 ±1.2 % % 2 ±10 3 ±15 % % ±3 OUTPUT parameter conditions/description line regulation For Vin change of 1%, full load 3.3 V output all other models load regulation 10% to 100% full load, nominal line VFSD1-S24-S15-SIP-A all other models voltage accuracy See tolerance envelope graph ±1 switching frequency 100% load, input voltage range 100 Temperature coefficient % kHz 0.03 %/°C PROTECTIONS parameter conditions/description short circuit protection Supply voltage must be discontinued at end of short circuit duration min typ max units min typ max units SAFETY AND COMPLIANCE parameter conditions/description isolation voltage tested for 1 minute at 1 mA max. 3,000 Vdc isolation resistance at 500 Vdc 1,000 MΩ isolation capacitance input to output, 100 kHz / 1 V RoHS compliant yes 1,000 MTBF pF 3,500,000 hours 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 Note: typ max units -40 85 °C -55 125 °C 95 % 25 °C 300 °C 15 1. All specifications measured at TA=25°C, humidity <75%, nominal input voltage and rated output load unless otherwise specified. cui.com CUI Inc │ SERIES: VFSD1-SIP Series │ DESCRIPTION: DC-DC CONVERTER date 01/27/2012 │ page 3 of 5 DERATING CURVES Load (%) 100 80 60 40 20 -40 -20 0 20 40 60 85 105 120 Ambient Temperature (°C) MECHANICAL parameter conditions/description min dimensions 0.77 x 0.24 x 0.39 inch (19.6 x 6.0 x 10.0 mm) case material Plastic (UL94-V0) weight typ max 2.1 MECHANICAL DRAWING units: mm All pins on a 2.54mm pitch All pin diameters are 0.50mm Recommended Footprint 19.60 2.54 2.54 10.00 1 2 5 7 4.10 PIN CONNECTIONS 1 1.25 1 2 2.00 5 7 6.00 15.24 BOTTOM VIEW cui.com +Vin 2 -Vin 5 -Vout 7 +Vout units g CUI Inc │ SERIES: VFSD1-SIP Series │ DESCRIPTION: DC-DC CONVERTER date 01/27/2012 │ page 4 of 5 APPLICATION NOTES 1. Requirement on output load To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full 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 (E_S-W25&F_S-W25). 2. Overload Protection Under normal operating conditions, the output circuit of these products has no protection against overload. The simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. 3. Recommended testing and application circuit If you want to further decrease the input/output ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, see (Figure 1). 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. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might arise. For every channel of output, provided the safe and reliable operation is ensured, the recommended capacitance of its filter capacitor sees (Table 1). Figure 1 External Capacitor Table (Table 1) Vin (Vdc) 4. Cin (μF) Single Vout (Vdc) 3.3, 5 4.7 3.3, 5 10 ±5 4.7 12 2.2 9.0 4.7 ±9 2.2 15 2.2 12 2.2 ±12 1.0 24 1.0 15, 24 1.0 ±15 0.47 Dual Vout (Vdc) Cout (μF) Output Voltage Regulation and Over-voltage Protection Circuit The simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (Figure 2). Figure 2 5. Cout (μF) No parallel connection or plug and play cui.com CUI Inc │ SERIES: VFSD1-SIP Series │ DESCRIPTION: DC-DC CONVERTER date 01/27/2012 │ page 5 of 5 REVISION HISTORY rev. 1.0 description date initial release 10/04/2007 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.