For more information, please visit the product page. date 09/04/2012 page 1 of 5 SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER 2 W isolated output industry standard 7 pin SIP package dual unregulated outputs 1,000 V isolation short circuit protection wide temperature (-40~85°C) efficiency up to 86% U • • • • • • • ED FEATURES input voltage MODEL typ (Vdc) range (Vdc) (Vdc) 5 4.5~5.5 output current output power ripple and noise1 efficiency min (mA) max (mA) max (W) max (mVp-p) typ (%) ±5 ±20 ±200 2 150 82 TI VASD2-S5-D5-SIP output voltage N RoHS VASD2-S5-D9-SIP 5 4.5~5.5 ±9 ±12 ±111 2 150 85 VASD2-S5-D12-SIP 5 4.5~5.5 ±12 ±9 ±83 2 150 86 5 4.5~5.5 ±15 ±7 ±67 2 150 82 12 10.8~13.2 ±5 ±20 ±200 2 150 81 N VASD2-S5-D15-SIP VASD2-S12-D5-SIP VASD2-S12-D9-SIP 12 10.8~13.2 ±9 ±12 ±111 2 150 84 VASD2-S12-D12-SIP 12 10.8~13.2 ±12 ±9 ±83 2 150 86 12 10.8~13.2 ±15 ±7 ±67 2 150 82 24 21.6~26.4 ±5 ±20 ±200 2 150 80 VASD2-S24-D9-SIP VASD2-S24-D12-SIP VASD2-S24-D15-SIP 24 21.6~26.4 ±9 ±12 ±111 2 150 84 24 21.6~26.4 ±12 ±9 ±83 2 150 84 24 21.6~26.4 ±15 ±7 ±67 2 150 84 1. ripple and noise are measured at 20 MHz BW IS C Notes: O VASD2-S12-D15-SIP VASD2-S24-D5-SIP D PART NUMBER KEY Base Number VASD2 - SXX - DXX -SIP Input Voltage Output Voltage cui.com Packaging Style For more information, please visit the product page. CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER date 09/04/2012 │ page 2 of 5 INPUT conditions/description min typ max units operating input voltage 5 V model 12 V model 24 V model 4.5 10.8 21.6 5 12 24 5.5 13.2 26.4 Vdc Vdc Vdc surge voltage 1 second max. 9 18 30 Vdc Vdc Vdc 0.4 A max units 1.2 % 15 15 15 15 % % % % 5 V model 12 V model 24 V model -0.7 -0.7 -0.7 reverse polarity input current1 input filter C filter OUTPUT for Vin change of 1% load regulation measured from 10% load to full load min 5 V model 9 V model 12 V model 15 V model see derating curves switching frequency 100% load, input voltage range temperature coefficient PROTECTIONS parameter TI voltage accuracy conditions/description short circuit protection min N SAFETY AND COMPLIANCE typ U conditions/description line regulation N parameter ED parameter 75 kHz ±0.03 %/°C typ units 1 s max units for 1 minute at 1 mA max. 1,000 Vdc isolation resistance at 500 Vdc 1,000 MΩ 3,500,000 hours UL yes IS C RoHS compliant O conditions/description isolation voltage MTBF typ max parameter safety approvals min 12.8 8.3 6.8 6.3 ENVIRONMENTAL parameter conditions/description min typ max units operating temperature -40 85 °C storage temperature -55 125 °C storage humidity non-condensing temperature rise at full load 95 lead temperature 1.5 mm from case for 10 seconds D 25 cui.com % °C 300 °C For more information, please visit the product page. CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER date 09/04/2012 │ page 3 of 5 DERATING CURVES 2. output voltage vs. output current ED 1. output power vs. ambient temperature +10% Output Voltate (%) Load (%) 100 80 60 40 20 -20 0 20 40 60 85 105 120 -2.5% -7.5% 50% 10% MECHANICAL parameter conditions/description dimensions 0.772 x 0.276 x 0.394 (19.60 x 7.00 x 10.00 mm) case material plastic (UL94-V0) min TI weight MECHANICAL DRAWING N units: mm [inches] tolerance: ±0.25 [±0.010] pin section tolerance: ±0.10 mm [±0.004] >@ O (Top View) IS C >@ >@ >@ 2.8 PIN CONNECTIONS >@ (Bottom View) >@ >@ >@ cui.com PIN FUNCTION 1 +Vin 2 GND 4 -Vo 5 0V 6 +Vo max units inch >@ >@ typ >@ >@ >@ >@ (Front View) >@ 100% Output Current (%) N Ambient Temperature (°C) D +2.5% Voltage U -40 +5% Nominal g ∅0>@ For more information, please visit the product page. CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER date 09/04/2012 │ page 4 of 5 APPLICATION NOTES Requirement on Output Load In order to ensure the product operates efficiently and reliably, make sure the specified range of input voltage is not exceeded and the minimum output load is not less than 10% load. If the actual load is less than the specified minimum load, the output ripple may increase sharply while its efficiency and reliability will reduce greatly. If the actual output power is very small, please add an appropriate resistor as extra loading. 2. 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. 3. 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 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 greatest capacitance of its filter capacitor sees the external capacitor table. To get an extremely 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 (Figure 1). Vin Figure 2 Vin REG GND 0V -Vo REG +Vo REG -Vo 0V DC DC O External Capacitor Table It is not recommended to connect any external capacitor in the application field with less than 0.5 W output. Table 1 Vin (Vdc) Cout (μF) Vout (Vdc) Cout (μF) 5 4.7 ±5 4.7 12 2.2 ±9 2.2 24 1 ±12 1 -- -- ±15 0.47 D IS C 5. Cout 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). N 4. DC DC Cin C out TI GND +Vo N Figure 1 U ED 1. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VASD2-SIP │ DESCRIPTION: DC-DC CONVERTER date 09/04/2012 │ page 5 of 5 REVISION HISTORY description date 08/30/2007 1.0 initial release 1.01 new template applied 1.02 V-Infinity branding removed ED rev. 04/13/2012 09/04/2012 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.