For more information, please visit the product page. date 01/28/2013 page 1 of 6 SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER FEATURES U ED 1 W isolated output industry standard pinout unregulated single output (5~24 V) small footprint 3,000 V isolation short circuit protection temperature range (-40~85°C) efficiency up to 81% RoHS MODEL input voltage output voltage VFSD1-S3.3-S3.3-SIP 3.3 VFSD1-S3.3-S5-SIP 3.3 VFSD1-S5-S5-SIP 5 VFSD1-S5-S12-SIP 5 VFSD1-S5-S15-SIP 5 VFSD1-S5-S24-SIP 5 12 12 output power ripple noise efficiency (Vdc) min (mA) max (mA) max (W) max (mVp-p) typ (%) 3.0 ~ 3.6 3.3 31 303 1 100 69 3.0 ~ 3.6 5 20 200 1 100 74 4.5 ~ 5.5 5 20 200 1 30 80 4.5 ~ 5.5 12 9 83 1 30 80 4.5 ~ 5.5 15 7 67 1 60 81 4.5 ~ 5.5 24 5 42 1 60 81 10.8 ~ 13.2 5 20 200 1 30 80 10.8 ~ 13.2 12 9 83 1 30 80 12 10.8 ~ 13.2 15 7 67 1 60 81 15 13.5 ~ 16.5 5 20 200 1 30 80 15 13.5 ~ 16.5 15 7 67 1 60 81 24 21.6 ~ 26.4 5 20 200 1 30 79 VFSD1-S24-S12-SIP 24 21.6 ~ 26.4 12 9 83 1 30 81 VFSD1-S24-S15-SIP 24 21.6 ~ 26.4 15 7 67 1 60 82 VFSD1-S12-S15-SIP VFSD1-S15-S5-SIP VFSD1-S15-S15-SIP IS C VFSD1-S24-S5-SIP O VFSD1-S12-S5-SIP VFSD1-S12-S12-SIP output current TI range (Vdc) N typ (Vdc) N • • • • • • • • • Note: 1. Ripple and noise measured at 20 mHz BW D PART NUMBER KEY VFSD1-S XX -S XX -SIP Base Number Input Voltage cui.com Output Voltage For more information, please visit the product page. CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 01/28/2013 │ page 2 of 6 INPUT conditions/description min typ max units operating input voltage 5 V model 12 V model 15 V model 24 V model 4.5 10.8 13.5 21.6 5 12 15 24 5.5 13.2 16.5 26.4 Vdc Vdc Vdc Vdc input surge voltage 1 second max. -0.7 -0.7 -0.7 -0.7 9 18 21 30 Vdc Vdc Vdc Vdc input filter C filter max units ±1.2 % 10 8 7 6 15 15 15 15 % % % % 100 300 kHz ±0.03 %/°C parameter conditions/description voltage accuracy see derating curves line regulation for Vin change of ±1% load regulation 10 ~ 100% full load switching frequency 100% load, nominal input voltage temperature coefficient 100% load min N 5 V model 12 V model 15 V model 24 V model TI PROTECTIONS U OUTPUT ED parameter conditions/description short circuit protection continuous, automatic recovery N parameter typ min typ max units min typ max units SAFETY AND COMPLIANCE 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 EMI/EMC RoHS compliant input to output, 100 kHz / 0.1 V 20 pF CISPR22/EN 55022 Class B, IEC/EN 61000-4-2 yes MIL-HDBK-217F, 25°C 3,500,000 IS C MTBF O parameter hours ENVIRONMENTAL parameter conditions/description min operating temperature storage temperature storage humidity non-condensing temperature rise 100% load lead temperature 1.5 mm from the case for 10 seconds max units -40 typ 105 °C -55 125 °C 95 % D 25 cui.com °C 300 °C For more information, please visit the product page. CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 01/28/2013 │ page 3 of 6 EMC RECOMMENDED CIRCUIT LDM Vin +Vo ED Vin LOAD C1 GND GN D - Vo (0V) RECOMMENDED EXTERNAL CIRCUIT PARAMETERS U C2 Vin = 5V Vin = 12V C1 Vin = 15V Vin = 24V 475 k / 50 V 6.8 µH N LDM --- 470 pF / 2 kV TI C2 N DERATING CURVES 80 60 O Load (%) 100 40 20 -20 0 20 40 60 85 Ambient Temperature (°C) D IS C -40 cui.com 105 120 For more information, please visit the product page. CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 01/28/2013 │ page 4 of 6 MECHANICAL conditions/description 0.768 x 0.236 x 0.39 (19.50 x 6.00 x 10.0 mm) min case material Plastic (UL94-V0) typ max inch weight 2.4 MECHANICAL DRAWING 19.50 [0.768] Ф1.10 [0.043] N 0.35 [0.013] 1 2 5 7 TI (Main V iew) g U units: mm [inches] tolerance: ±0.25 [±0.010] pin section tolerance: ±0.10 mm [±0.004] 9.35 [0.368] Note: grid 2.54*2.54mm. 2.54 [0.100] 4.10 [0.161] (B ottom View) 0.60[0.024] 0.25 [0.010] 1.75 [0.069] D IS C 6.00 [0.236] O N 15.24[0.600] units ED parameter dimensions cui.com PIN CONNECTIONS PIN FUNCTION 1 Vin 2 GND 5 0V 7 +Vo For more information, please visit the product page. CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 01/28/2013 │ page 5 of 6 APPLICATION NOTES ED 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. 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. U 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). External Capacitor Table (Table 1) +Vo Vin DC DC Cin (µF) Cout Vout (Vdc) 0V Cout (μF) 5 4.7 5 10 12 2.2 9.0 4.7 15 2.2 12 2.2 15, 24 1.0 TI GND Cin Vin (Vdc) N Figure 1 24 1.0 Figure 2 N 4. 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). Vin REG +Vo DC DC O GND REG 0V D IS C 5. No parallel connection or plug and play cui.com For more information, please visit the product page. CUI Inc │ SERIES: VFSD1-SIP │ DESCRIPTION: DC-DC CONVERTER date 01/28/2013 │ page 6 of 6 REVISION HISTORY description date 10/04/2007 1.0 initial release 1.01 updated drawings and data 1.02 V-Infinity branding removed 1.03 added 2 models to datasheet ED rev. 05/31/2012 09/05/2012 01/28/2013 D IS C O N TI N U 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.