For more information, please visit the product page. date 10/28/2014 page 1 of 6 SERIES: PDS1-S │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • • 1 W isolated output smaller package single unregulated output 1,500 Vdc isolation short circuit protection extended temperature range (-40~105°C) antistatic protection up to 8kV UL 60950-1 approval high efficiency at light load efficiency up to 82% input voltage MODEL output voltage output current output power ripple and noise2 efficiency typ (Vdc) range (Vdc) (Vdc) min (mA) max (mA) max (W) typ (mVp-p) typ (%) PDS1-S3-S3-S 3.3 2.97~3.63 3.3 30 303 1 30 75 PDS1-S3-S5-S 3.3 2.97~3.63 5 20 200 1 30 80 PDS1-S5-S3-S 5 4.5~5.5 3.3 30 303 1 30 76 1 PDS1-S5-S5-S 5 4.5~5.5 5 20 200 1 30 80 PDS1-S5-S9-S1 5 4.5~5.5 9 12 111 1 30 80 1 PDS1-S5-S12-S 5 4.5~5.5 12 9 84 1 30 81 PDS1-S5-S15-S1 5 4.5~5.5 15 7 67 1 60 81 1 PDS1-S5-S24-S 5 4.5~5.5 24 4 42 1 60 81 PDS1-S12-S3-S 12 10.8~13.2 3.3 30 303 1 30 76 1 PDS1-S12-S5-S 12 10.8~13.2 5 20 200 1 30 80 PDS1-S12-S9-S1 12 10.8~13.2 9 12 111 1 30 80 1 PDS1-S12-S12-S 12 10.8~13.2 12 9 83 1 30 81 PDS1-S12-S15-S1 12 10.8~13.2 15 7 67 1 60 80 PDS1-S15-S5-S 15 13.5~16.5 5 20 200 1 30 80 PDS1-S15-S12-S 15 13.5~16.5 12 9 83 1 60 80 PDS1-S15-S15-S 15 13.5~16.5 15 7 67 1 60 81 1 PDS1-S24-S3-S 24 21.6~26.4 3.3 30 303 1 30 76 PDS1-S24-S5-S1 24 21.6~26.4 5 20 200 1 30 80 PDS1-S24-S9-S1 24 21.6~26.4 9 12 111 1 30 80 PDS1-S24-S12-S1 24 21.6~26.4 12 9 84 1 30 81 PDS1-S24-S15-S1 24 21.6~26.4 15 7 67 1 60 82 PDS1-S24-S24-S1 24 21.6~26.4 24 4 42 1 60 82 Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by “parallel cable” method with 1 μF ceramic and 10 μF electrolytic capacitors on the output. cui.com For more information, please visit the product page. CUI Inc │ SERIES: PDS1-S │ DESCRIPTION: DC-DC CONVERTER date 10/28/2014 │ page 2 of 6 PART NUMBER KEY PDS1 - SXX - SXX -S Base Number Input Voltage Output Voltage Packaging Style SIP INPUT parameter conditions/description min typ max units operating input voltage 3.3 Vdc input models 5 Vdc input models 12 Vdc input models 15 Vdc input models 24 Vdc input models 2.97 4.5 10.8 13.5 21.6 3.3 5 12 15 24 3.63 5.5 13.2 16.5 26.4 Vdc Vdc Vdc Vdc Vdc surge voltage for maximum of 1 second 3.3 Vdc input models 5 Vdc input models 12 Vdc input models 15 Vdc input models 24 Vdc input models -0.7 -0.7 -0.7 -0.7 -0.7 5 9 18 21 30 Vdc Vdc Vdc Vdc Vdc filter capacitance filter max units ±1.5 ±1.2 % % OUTPUT parameter conditions/description line regulation for Vin change of 1% 3.3 Vdc output models all other models min load regulation measured from 10% load to full load 3.3 Vdc output models 5 Vdc output models 9 Vdc output models 12 Vdc output models 15 Vdc output models 24 Vdc output models voltage accuracy see tolerance envelope curve switching frequency 100% load, nominal input voltage temperature coefficient 100% load typ % % % % % % 18 12 8 7 6 5 100 300 kHz ±0.03 %/°C PROTECTIONS parameter conditions/description short circuit protection automatic recovery min typ max units min typ max units SAFETY AND COMPLIANCE parameter conditions/description isolation voltage input to output for 1 minute at 1 mA max. 1,500 Vdc isolation resistance input to output at 500 Vdc 1,000 MΩ safety approvals1 UL 60950-1 conducted emissions CISPR22/EN55022, class B (external circuit required, see Figure 1) radiated emissions CISPR22/EN55022, class B (external circuit required, see Figure 1) ESD IEC/EN61000-4-2, class B, contact ±8kV MTBF as per MIL-HDBK-217F @ 25°C RoHS Note: 3,500,000 2011/65/EU 1. See specific models noted on page 1 cui.com hours For more information, please visit the product page. CUI Inc │ SERIES: PDS1-S │ DESCRIPTION: DC-DC CONVERTER date 10/28/2014 │ page 3 of 6 ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curve -40 105 °C -55 125 °C 95 % storage temperature storage humidity non-condensing temperature rise at full load, Ta = 25°C typ 25 °C SOLDERABILITY parameter conditions/description min typ max units hand soldering 1.5 mm from case for 10 seconds 300 °C wave soldering see wave soldering profile 260 °C max units Peak Temp. 260°C Max. Wave Soldering Time 4 Sec. Max. 250 Temperature (°C) 200 10 Sec. Max. 150 100 50 0 Time (sec.) MECHANICAL parameter conditions/description min dimensions 11.60 x 6.00 x 10.10 (0.457 x 0.236 x 0.398 inch) case material plastic (UL94-V0) weight typ mm 1.2 MECHANICAL DRAWING units: mm[inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004] PIN CONNECTIONS PIN Function 1 GND 2 Vin 3 0V 4 +Vo Front View Bottom View PCB Layout Top View cui.com g For more information, please visit the product page. CUI Inc │ SERIES: PDS1-S │ DESCRIPTION: DC-DC CONVERTER date 10/28/2014 │ page 4 of 6 DERATING CURVES Tolerance Envelope Curve Temperature Derating Curve 7.5 100 5 Typica l 2.5 Load Line 2.5 Rated Output Voltage 0 -2.5 -2.5 Load (%) Output Voltage Accuracy (%) 10 80 60 Safe operating area 40 -5 -7.5 -7.5 20 -10 10 20 30 40 50 60 70 80 90 100 -40 Output Current Percentage (%) (Nominal Input Voltage) -20 0 20 40 60 85 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Figure 1 Table 1 Recommended external circuit components L DM Vin Vin EU T C0 G ND Vin (Vdc) +Vo G ND L O AD 0V C0 LDM 3.3 4.7μF/50V 6.8μH 5 4.7μF/50V 6.8μH 12 4.7μF/50V 6.8μH 15 4.7μF/50V 6.8μH 24 4.7μF/50V 6.8μH TEST CONFIGURATION Figure 2 Table 2 Oscilloscope External components Lin Cin Current Probe DC DC Lin 4.7μH Cin 220μF, ESR < 1.0Ω at 100 kHz Load Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. cui.com 105 120 For more information, please visit the product page. CUI Inc │ SERIES: PDS1-S │ DESCRIPTION: DC-DC CONVERTER date 10/28/2014 │ page 5 of 6 APPLICATION NOTES 1. Output load requirement To ensure this module can operate efficiently and reliably, the minimum output load may not be less than 10% of the full load during operation. If the actual output power is low, connect a resistor at the output end in parallel to increase the load. 2. Overload Protection Under normal operating conditions, the output circuit of this product has no protection against overload. The simplest method to add this is to add a circuit breaker to the circuit. 3. Recommended circuit This series has been tested according to the following recommended testing circuit before leaving the factory. This series should be tested under load (see Figure 3 & Table 3). If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR. However, the capacitance of the output filter capacitor must be appropriate. If the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the maximum capacitance must be less than the maximum capacitive load (see Table 4). Figure 3 +Vo Vin DC DC Cin Cout GND 0V Table 3 Vin (Vdc) Cin (μF) Vo (Vdc) 3.3 4.7 5 4.7 12 Cout (μF) Vout (Vdc) Max. Capacitive Load (μF) 3.3 10 3.3 220 5 10 5 220 2.2 9 4.7 9 220 15 1 12 2.2 12 220 24 1 15 1 15 220 -- -- 24 0.47 24 220 Note: Note: 1. 2. 3. 4. Table 4 It’s not recommended to connect any external capacitors in applications with less than 0.5 watt output. Operation under minimum load will not damage the converter; however, they may not meet all specifications listed. Max. capacitive load tested at input voltage range and full load. It is recommended to use either ceramic capacitors or electrolytic capacitors on the input and the output. Using tantalum capacitors may increase the risk of failure. 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: PDS1-S │ DESCRIPTION: DC-DC CONVERTER date 10/28/2014 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 03/19/2013 1.01 added model PDS1-S15-S12-S 07/29/2013 1.02 added model PDS1-S12-S3-S, updated spec 03/07/2014 added UL approval to some models 10/28/2014 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 [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.