For more information, please visit the product page. date 09/16/2014 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 continuous 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 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 30 73 PEM1-S3-S5-S 3.3 2.97~3.63 5 20 200 1 30 78 PEM1-S5-S3-S 5 4.5~5.5 3.3 30 303 1 30 75 PEM1-S5-S5-S 5 4.5~5.5 5 20 200 1 30 80 PEM1-S5-S12-S1 5 4.5~5.5 12 9 83 1 30 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 30 73 PEM1-S5-D5-S1 5 4.5~5.5 ±5 ±10 ±100 1 30 80 1 PEM1-S5-D12-S 5 4.5~5.5 ±12 ±5 ±42 1 30 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 30 75 PEM1-S12-S5-S 12 10.8~13.2 5 20 200 1 30 80 PEM1-S12-S12-S1 12 10.8~13.2 12 9 83 1 30 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 30 73 PEM1-S12-D5-S 12 10.8~13.2 ±5 ±10 ±100 1 30 80 PEM1-S12-D12-S 12 10.8~13.2 ±12 ±5 ±42 1 30 81 PEM1-S12-D15-S 12 10.8~13.2 ±15 ±4 ±33 1 60 81 PEM1-S15-S5-S 15 13.5~16.5 5 20 200 1 30 80 PEM1-S15-S12-S 15 13.5~16.5 12 9 83 1 30 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 30 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 30 75 PEM1-S24-S5-S 24 21.6~26.4 5 20 200 1 30 79 PEM1-S24-S12-S 24 21.6~26.4 12 9 83 1 30 81 1 1 1 cui.com For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER MODEL (CONTINUED) input voltage date 09/16/2014 │ 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-S15-S 24 21.6~26.4 15 7 67 1 60 81 PEM1-S24-S24-S 24 21.6~26.4 24 4 42 1 60 81 PEM1-S24-D3-S 24 21.6~26.4 ±3.3 ±15 ±152 1 30 73 PEM1-S24-D5-S 24 21.6~26.4 ±5 ±10 ±100 1 30 80 PEM1-S24-D12-S 24 21.6~26.4 ±12 ±5 ±42 1 30 81 PEM1-S24-D15-S 24 21.6~26.4 ±15 ±4 ±33 1 60 79 PEM1-S24-D24-S 24 21.6~26.4 ±24 ±2 ±21 1 60 80 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. 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 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 ±1 % switching frequency at full load, nominal input voltage 100 300 kHz temperature coefficient at full load ±0.03 %/°C cui.com typ 18 12 8 7 6 % % % % % For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 09/16/2014 │ page 3 of 7 PROTECTIONS parameter conditions/description short circuit protection continuous, automatic recovery min typ max units min typ max units SAFETY AND COMPLIANCE parameter conditions/description isolation voltage for 1 minute at 1 mA max. 3,000 Vdc isolation resistance 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 for single outputs IEC/EN61000-4-2, class B, contact ± 6kV for dual outputs MTBF as per MIL-HDBK-217F @ 25°C RoHS 2011/65/EU Note: 3,500,000 hours 1. See specific models noted on page 1 ENVIRONMENTAL parameter conditions/description min operating temperature see derating curve storage temperature storage humidity non-condensing temperature rise at full load typ max units -40 105 °C -55 125 °C 95 25 % °C SOLDERABILITY parameter conditions/description hand soldering wave soldering min typ max units 1.5 mm from case for 10 seconds 300 °C see wave soldering profile 260 °C Peak Temp. 260°C Max. Wave Soldering Time 4 Sec. Max. 250 Temperature (°C) 200 10 Sec. Max. 150 100 50 0 Time (sec.) cui.com For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 09/16/2014 │ page 4 of 7 MECHANICAL parameter conditions/description dimensions 19.50 x 6.00 x 9.00 (0.768 x 0.236 x 0.354 inch) min case material epoxy resin (UL94-V0) typ max units mm weight 2.4 g MECHANICAL DRAWING units: mm[inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004] PIN Single Output 1 Vin Dual Output Vin 2 GND GND 5 0V -Vo 6 No Pin 0V 7 +Vo +Vo f >f @ PIN CONNECTIONS f >f @ f >f @ f > f @ f >f@ >@ >@ Side View f > f @ Front View f >f @ f >f @ >@ >@ Bottom View Grid Size: 2.54mm x 2.54mm f >f @ >@ ∅>@ >@ >@ PCB Layout Top View cui.com For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 09/16/2014 │ page 5 of 7 DERATING CURVES Tolerance Envelope Curve Temperature Derating Curve 7.5 100 5 Typica l Load Line 2.5 0 2.5 Rated Output Voltage -2.5 -2.5 -5 -7.5 -7.5 Load (%) Output Voltage Accuracy (%) 10 80 60 Safe operating area 40 20 -10 10 20 30 40 50 60 70 Output Current Percentage (%) (Nominal Input Voltage) 80 90 100 -40 -20 0 20 40 60 85 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Figure 1 Table 1 Recommended external circuit components LDM Vin Vin +Vo EUT C0 GND GN D LOAD - Vo (0V) Vin (Vdc) 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 Load Note: Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance. cui.com Lin 4.7μH Cin 220μF, ESR < 1.0Ω at 100 kHz 105 120 For more information, please visit the product page. CUI Inc │ SERIES: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 09/16/2014 │ 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 Dual O ut put +Vo Vin GND Cout DC DC Cin Vin Figure 3 GND 0V DC DC Cin Table 3 Cout Cout +Vo 0V -Vo Table 4 Vin (Vdc) Cin (µF) Single Vo (Vdc) Cout (µF) Dual Vo (Vdc) Cout (µF) Single Vout (Vdc) Max. Capacitive Load (μF) Dual Vout (Vdc) Max. Capacitive Load1 (μF) 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: 24 Note: It’s not recommended to connect any external capacitors in applications with less than 0.5 watt output. 1. For each output. 4. Output Voltage Regulation and Over-voltage Protection Circuit The device for output voltage regulation, over-voltage and over-current protection is a linear regulator and a capacitor filtering network with overheat protection which can be connected to the input or output end in series (see Figure 4). The recommended capacitance of its filter capacitor (see Table 3), and the linear regulator is based on the actual voltage and current required. Figure 4 Single Output Vin REG GND REG +Vo DC DC 0V Dual Output Vin GND Note: 1. 2. 3. 4. REG REG DC DC +Vo 0V REG -Vo 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: PEM1-S │ DESCRIPTION: DC-DC CONVERTER date 09/16/2014 │ 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 added UL approval to some models 09/16/2014 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.