For more information, please visit the product page. date 12/04/2017 page 1 of 7 SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER FEATURES * * * * * * * * * * 1 W isolated output smaller package single/dual unregulated output 3,000 Vdc isolation short circuit protection extended temperature range (-40~105C) antistatic protection up to 8kV UL 60950-1 approval high efficiency at light load efficiency up to 81% MODEL input voltage 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 (%) PEM1-S3-S3-S 3.3 2.97~3.63 3.3 30 303 1 60 73 PEM1-S3-S5-S 3.3 2.97~3.63 5 20 200 1 60 78 PEM1-S5-S3-S 5 4.5~5.5 3.3 30 303 1 60 73 PEM1-S5-S5-S 5 4.5~5.5 5 20 200 1 60 80 PEM1-S5-S12-S1 5 4.5~5.5 12 9 83 1 60 80 1 PEM1-S5-S15-S 5 4.5~5.5 15 7 67 1 60 81 PEM1-S5-S24-S1 5 4.5~5.5 24 5 42 1 60 81 PEM1-S5-D3-S 5 4.5~5.5 3.3 15 152 1 60 73 PEM1-S5-D5-S1 5 4.5~5.5 5 10 100 1 60 80 1 PEM1-S5-D12-S 5 4.5~5.5 12 5 42 1 60 80 PEM1-S5-D15-S1 5 4.5~5.5 15 4 33 1 60 81 1 PEM1-S5-D24-S 5 4.5~5.5 24 2 21 1 60 81 PEM1-S12-S3-S 12 10.8~13.2 3.3 30 303 1 60 75 PEM1-S12-S5-S 12 10.8~13.2 5 20 200 1 60 80 PEM1-S12-S12-S1 12 10.8~13.2 12 9 83 1 60 80 PEM1-S12-S15-S 12 10.8~13.2 15 7 67 1 60 81 PEM1-S12-D3-S 12 10.8~13.2 3.3 15 152 1 60 74 PEM1-S12-D5-S1 12 10.8~13.2 5 10 100 1 60 80 1 PEM1-S12-D12-S 12 10.8~13.2 12 5 42 1 60 81 PEM1-S12-D15-S1 12 10.8~13.2 15 4 33 1 60 81 PEM1-S15-S5-S 15 13.5~16.5 5 20 200 1 60 80 PEM1-S15-S12-S 15 13.5~16.5 12 9 83 1 60 80 PEM1-S15-S15-S 15 13.5~16.5 15 7 67 1 60 81 PEM1-S15-D5-S 15 13.5~16.5 5 10 100 1 60 80 PEM1-S15-D15-S 15 13.5~16.5 15 4 33 1 60 81 PEM1-S24-S3-S 24 21.6~26.4 3.3 30 303 1 60 75 PEM1-S24-S5-S 24 21.6~26.4 5 20 200 1 60 79 1 1 1 1 Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by "parallel cable" method with 1 F ceramic and 10 F electrolytic capacitors on the output. cui.com For more information, please visit the product page. CUI Inc SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER MODEL (CONTINUED) input voltage date 12/04/2017 page 2 of 7 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 (%) PEM1-S24-S12-S1 24 21.6~26.4 12 9 83 1 60 81 PEM1-S24-S15-S1 24 21.6~26.4 15 7 67 1 60 81 PEM1-S24-S24-S 24 21.6~26.4 24 5 42 1 60 81 PEM1-S24-D3-S 24 21.6~26.4 3.3 15 152 1 60 73 PEM1-S24-D5-S 24 21.6~26.4 5 10 100 1 60 80 PEM1-S24-D12-S1 24 21.6~26.4 12 5 42 1 60 81 1 PEM1-S24-D15-S 24 21.6~26.4 15 4 33 1 60 79 PEM1-S24-D24-S1 24 21.6~26.4 24 2 21 1 60 80 1 1 Notes: 1. UL approved 2. Ripple and noise are measured at 20 MHz BW by "parallel cable" method with 1 F ceramic and 10 F electrolytic capacitors on the output. PART NUMBER KEY PEM1 - SXX - XXX -S Base Number Output S = single D = dual 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 min typ line regulation for Vin change of 1% 3.3 Vdc output models all other models load regulation measure from 10% load to full load 3.3 Vdc input models 5 Vdc input models 12 Vdc input models 15 Vdc input models 24 Vdc input models voltage accuracy see tolerance envelope curve voltage balance dual output, balanced loads 0.5 switching frequency at full load, nominal input voltage 100 temperature coefficient at full load 18 12 8 7 6 % % % % % 1 0.03 cui.com % kHz %/C For more information, please visit the product page. CUI Inc SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER date 12/04/2017 page 3 of 7 PROTECTIONS parameter conditions/description min typ short circuit protection1 Note: max units 1 s max units 1. The supply voltage must be discontinued at the end of the short circuit duration. SAFETY AND COMPLIANCE parameter conditions/description isolation voltage input to output for 1 minute, 1 mA max. leakage current 3,000 Vdc isolation resistance input to output at 500 Vdc 1,000 M isolation capacitance input to output, 100KHz, 0.1V safety approvals 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 for single outputs IEC/EN61000-4-2, class B, contact 6kV for dual outputs MTBF as per MIL-HDBK-217F @ 25C 2 RoHS min typ 20 pF 3,500,000 hours 2011/65/EU Note: 2. See specific models noted on pages 1 & 2. ENVIRONMENTAL parameter conditions/description min operating temperature see derating curve storage temperature storage humidity non-condensing temperature rise at Ta = 25C typ max units -40 105 C -55 125 C 95 % 25 C SOLDERABILITY parameter conditions/description max units hand soldering 1.5 mm from case for 10 seconds 300 C see wave soldering profile 260 C wave soldering 3 Notes: min typ 3. Preheat conditions: At 120C for over 1 minute. Peak Temp. 260C Max. 250 Wave Soldering Time 4 Sec. Max. 250 200 Temperature (C) Temperature (C) 200 150 120 >60 seconds 100 50 0 10 Sec. Max. 150 100 50 0 Time (sec.) Preheat Profile Time (sec.) Wave Soldering Profile cui.com For more information, please visit the product page. CUI Inc SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER date 12/04/2017 page 4 of 7 MECHANICAL parameter conditions/description dimensions 19.50 x 6.00 x 9.30 (0.768 x 0.236 x 0.366 inch) min case material epoxy resin (UL94-V0) weight units: mm[inch] tolerance: 0.25[0.010] pin section tolerance: 0.10[0.004] PIN CONNECTIONS Single Output Dual Output 1 Vin Vin 2 GND GND 5 0V -Vo 6 No Pin 0V 7 +Vo +Vo cui.com max units mm 2.4 MECHANICAL DRAWING PIN typ g For more information, please visit the product page. CUI Inc SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER date 12/04/2017 page 5 of 7 DERATING CURVES Tolerance Envelope Curve Tolerance (3.3 Envelope Curve (3.3 Vdc output only)Vdc) 5 Max Typ ic al L oad Typ0i cal L Lin oad e L ine -5 0 -5 10 20 30 1.0 Rated Output Voltage 1.0 -7.5 Min -10 -7.5 -15 -15 40 10 Rated Output Voltage 50 20 60 40 70 60 80 80 90 100 Output Current (%) Output Percentage Current Percentage (%) (Nominal Input Voltage) (Nominal Input Voltage) -15 100 Output Voltage Accuracy (%) 5 10 10 Output Voltage Accuracy (%) Output Voltage Accuracy (%) Output Voltage Accuracy (%) 10 5 0 10 15 Tolerance Envelope Curve Tolerance Envelope Curve (all other models) (all other models) 10 Typica Max Typ ical Ll Load oad Line Line 5 -0 Min -5 2.5 2.5 Rated Output Voltage -2.5 -2.5 -7.5 -10 10 20 20 30 40 40 60 50 80 60 100 70 Output Current (%) OutputPercentage Current Percentage (%) (Nominal(Nominal Input Voltage) Input Voltage) Rated Output Voltage -7.5 80 90 100 Temperature Derating Curve Load (%) 100 80 60 Safe operating area 40 20 -40 -20 0 20 40 60 85 105 120 Ambient Temperature (C) EMC RECOMMENDED CIRCUIT Figure 1 Table 1 Recommended external circuit components LDM Vin Vin +Vo DC/DC C1 GND GND Cout LOAD -Vo (0V) Vin (Vdc) C1 LDM 3.3 4.7F/50V 6.8H 5 4.7F/50V 6.8H 12 4.7F/50V 6.8H 15 4.7F/50V 6.8H 4.7F/50V 6.8H 24 Note: 1. See Table 3 for Cout values. TEST CONFIGURATION Figure 2 Table 2 Oscilloscope External components Lin Cin Current Probe DC DC Load Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. cui.com Lin 4.7H Cin 220F, ESR < 1.0 at 100 kHz For more information, please visit the product page. CUI Inc SERIES: PEM1-S DESCRIPTION: DC-DC CONVERTER date 12/04/2017 page 6 of 7 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 If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR (see Figure 3 & Table 3). 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 Single Output Vin DC DC Cin GND Dual Output +Vo Vin Cout DC DC Cin GND 0V Cout Cout +Vo 0V -Vo Table 3 Table 4 Vin (Vdc) Cin (F) Single Vo (Vdc) Cout (F) Dual Vo (Vdc) Cout (F) Single Vout (Vdc) Max. Capacitive Load (F) Dual Vout (Vdc) Max. Capacitive Load1 (F) 3.3 4.7 3.3 10 3.3 4.7 3.3 220 3.3 100 5 4.7 5 10 5 4.7 5 220 5 100 12 2.2 12 2.2 12 1 12 220 12 100 15 2.2 15 1 15 0.47 15 220 15 100 24 1 24 1 24 0.47 220 24 100 Note: Note: It's not recommended to connect any external capacitors in applications with less than 0.5 watt output. 1. 2. 3. 4. 24 Note: 1. For each 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=25C, 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: PEM1-S DESCRIPTION: DC-DC CONVERTER date 12/04/2017 page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 03/19/2013 1.01 added model PEM1-S15-S12-S 07/29/2013 1.02 added new models 02/14/2014 1.03 added UL approval to some models 09/16/2014 1.04 added UL approval to some models 01/14/2015 1.05 updated tolerance envelope curves 02/10/2016 1.06 added wave soldering preheat conditions, updated emc recommendations 12/04/2017 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 techsupport@cui.com 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.