For more information, please visit the product page. date 04/17/2014 page 1 of 5 SERIES: VHS2-SIP │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • 2 W isolated output industry standard 7 pin SIP package single unregulated outputs 6,000 V isolation short circuit protection wide temperature (-40~85°C) efficiency up to 84% RoHS MODEL input voltage 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 (%) VHS2-S5-S5-SIP 5 4.5~5.5 5 40 400 2 150 80 VHS2-S5-S9-SIP* 5 4.5~5.5 9 23 222 2 150 81 VHS2-S5-S12-SIP 5 4.5~5.5 12 17 167 2 150 84 VHS2-S5-S15-SIP 5 4.5~5.5 15 14 133 2 150 84 VHS2-S12-S5-SIP 12 10.8~13.2 5 40 400 2 150 81 VHS2-S12-S9-SIP 12 10.8~13.2 9 23 222 2 150 82 VHS2-S12-S12-SIP 12 10.8~13.2 12 17 167 2 150 80 VHS2-S12-S15-SIP 12 10.8~13.2 15 14 133 2 150 84 Notes: 1. ripple and noise are measured at 20 MHz BW *Discontinued PART NUMBER KEY VHS2 - SXX - SXX -SIP Base Number Input Voltage Output Voltage cui.com Packaging Style For more information, please visit the product page. CUI Inc │ SERIES: VHS2-SIP │ DESCRIPTION: DC-DC CONVERTER date 04/17/2014 │ page 2 of 5 INPUT parameter conditions/description min typ max units operating input voltage 5 V model 12 V model 4.5 10.8 5 12 5.5 13.2 Vdc Vdc parameter conditions/description min typ line regulation for Vin change of 1% load regulation measured from 10% load to full load voltage accuracy see derating curves switching frequency 100% load, input voltage range OUTPUT temperature coefficient max units ±1.2 % 15 % 250 kHz ±0.03 %/°C PROTECTIONS parameter conditions/description min typ short circuit protection max units 1 s max units SAFETY AND COMPLIANCE parameter conditions/description isolation voltage for 1 minute at 1 mA max. 6,000 min Vdc isolation resistance at 500 Vdc 1,000 MΩ 3,500,000 hours MTBF RoHS typ 2011/65/EU ENVIRONMENTAL parameter conditions/description min operating temperature storage temperature storage humidity non-condensing temperature rise at full load lead temperature 1.5 mm from case for 10 seconds max units -40 typ 85 °C -55 125 °C 95 % 25 °C 300 °C 15 cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHS2-SIP │ DESCRIPTION: DC-DC CONVERTER date 04/17/2014 │ page 3 of 5 DERATING CURVES 1. output power vs. ambient temperature 2. output voltage vs. output current +10% Output Voltate (%) Load (%) 100 80 60 40 20 -40 -20 0 20 40 60 85 +5% +2.5% Nominal Voltage -2.5% -7.5% 105 120 50% 10% Ambient Temperature (°C) 100% Output Current (%) MECHANICAL parameter conditions/description dimensions 0.768 x 0.386 x 0.492 (19.50 x 9.80 x 12.50 mm) min case material plastic (UL94-V0) typ 4.2 MECHANICAL DRAWING units: mm tolerance: ±0.25 pin section tolerance: ±0.10 mm Side View Bottom View 1 2 1 2 5 PIN CONNECTIONS 5 cui.com units inch weight 2.54 max PIN FUNCTION 1 +Vin 2 -Vin 5 0V 7 +Vout 7 g For more information, please visit the product page. CUI Inc │ SERIES: VHS2-SIP │ DESCRIPTION: DC-DC CONVERTER date 04/17/2014 │ 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 -Vin. 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 Input Voltage External Input Capacitance 5V 4.7 μF 12 V 2.2 μF 24 V 1.0 μF L L +Vin DC DC C -Vin +Vout C -Vout Figure 1 <Figure 1> 2. Output filtering An output capacitor is needed to meet output ripple requirements as shown in Table 2. Output capacitance may be increased for additional filtering, but should not exeed 10μF or expanded to an LC network as in Figure 1. Table 2 Output Voltage External Input Capacitance +Vin 5V 4.7 μF -Vin 9V 2.2 μF 12 V 1.0 μF 15 V 0.47 μF +Vin -Vin REG +Vout DC DC -Vout REG +Vout DC DC Figure 2 -Vout 3. 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. 4. Regulation With a semi-regulated design, the converter’s output voltage varies with load current and will change proportionally to the input voltage. If regulated output is needed, an external regulator can be used as shown in Figure 2. 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. Dual outputs used as a single output The +Vout and -Vout can be used to obtain a single output that is the sum of the two outputs. In this case, the COM pin shouldn’t be used. 7. External Regulator An external 3-terminal regulator can be connected to the output of the converter to achieve full regulation. Make sure the converter’s output voltage provides sufficient head room for the regulator. An additional benefit is that the built-in protection features in the regulator, such as OCP, OTP, etc, will protect the converter also. In a complimentory supply, a negative output regulator must be used to achieve the negative regulated output. Note: 1. All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VHS2-SIP │ DESCRIPTION: DC-DC CONVERTER date 04/17/2014 │ page 5 of 5 REVISION HISTORY rev. description date 1.0 initial release 06/20/2006 1.01 new template applied, V-Infinity branding removed 09/10/2012 1.02 updated spec. 11/08/2012 discontinued model VHS2-S5-S9-SIP 04/17/2014 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 firstname.lastname@example.org 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.