date 03/21/2013 page 1 of 6 SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • • 2 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 high efficiency at light load efficiency up to 89% MODEL input voltage output voltage output current output power ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) min (mA) max (mA) max (W) typ (mVp-p) typ (%) PEM2-S5-S5-S 5 4.5~5.5 5 40 400 2 60 89 PEM2-S5-S12-S 5 4.5~5.5 12 16.6 166.6 2 60 84 PEM2-S5-S15-S 5 4.5~5.5 15 13.3 133.3 2 75 84 PEM2-S5-S24-S 5 4.5~5.5 24 8.3 83.3 2 75 84 PEM2-S5-D5-S 5 4.5~5.5 ±5 ±20 ±200 2 60 84 PEM2-S5-D12-S 5 4.5~5.5 ±12 ±8.3 ±83.3 2 60 84 PEM2-S5-D15-S 5 4.5~5.5 ±15 ±6.7 ±66.6 2 75 84 PEM2-S5-D24-S 5 4.5~5.5 ±24 ±4.2 ±41.6 2 75 84 PEM2-S12-S5-S 12 10.8~13.2 5 40 400 2 60 84 PEM2-S12-S12-S 12 10.8~13.2 12 16.6 166.6 2 60 84 PEM2-S12-S15-S 12 10.8~13.2 15 13.3 133.3 2 75 84 PEM2-S12-D5-S 12 10.8~13.2 ±5 ±20 ±200 2 60 84 PEM2-S12-D12-S 12 10.8~13.2 ±12 ±8.3 ±83.3 2 60 85 PEM2-S12-D15-S 12 10.8~13.2 ±15 ±6.7 ±66.6 2 75 84 PEM2-S15-D15-S 15 13.5~16.5 ±15 ±6.7 ±66.6 2 75 85 PEM2-S24-S5-S 24 21.6~26.4 5 40 400 2 60 84 PEM2-S24-S12-S 24 21.6~26.4 12 16.6 166.6 2 60 84 PEM2-S24-S15-S 24 21.6~26.4 15 13.3 133.3 2 75 84 PEM2-S24-S24-S 24 21.6~26.4 24 8.3 83.3 2 75 85 PEM2-S24-D5-S 24 21.6~26.4 ±5 ±20 ±200 2 60 84 PEM2-S24-D12-S 24 21.6~26.4 ±12 ±8.3 ±83.3 2 60 84 PEM2-S24-D15-S 24 21.6~26.4 ±15 ±6.7 ±66.6 2 75 84 Notes: 1. ripple and noise are measured at 20 MHz BW by “parallel cable” method cui.com CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 03/21/2013 │ page 2 of 6 PART NUMBER KEY PEM2 - SXX - XXX -S Base Number INPUT Output S = single D = dual Input Voltage Output Voltage Packaging Style SIP parameter conditions/description min typ max units operating input voltage 5 V input models 12 V input models 15 V input models 24 V input models 4.5 10.8 13.5 21.6 5 12 15 24 5.5 13.2 16.5 26.4 Vdc Vdc Vdc Vdc surge voltage for maximum of 1 second 5 V input models 12 V input models 15 V input models 24 V input models -0.7 -0.7 -0.7 -0.7 9 18 21 30 Vdc Vdc Vdc Vdc filter capacitance filter max units ±1.2 % 15 % OUTPUT parameter conditions/description min typ line regulation for Vin change of 1% load regulation measured from 10% load to full load voltage accuracy see tolerance envelope curve voltage balance dual output, balanced loads ±0.5 ±1 % switching frequency 100% load, nominal input voltage 100 300 kHz temperature coefficient 100% load ±0.03 %/°C 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 conducted emissions CISPR22/EN55022, class B (external circuit required) 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 compliant yes 3,500,000 hours 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 cui.com % °C CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 03/21/2013 │ page 3 of 6 SOLDERABILITY parameter conditions/description hand soldering 1.5 mm from case for 10 seconds min wave soldering see wave soldering profile typ max units 300 °C 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 dimensions 19.60 x 7.00 x 10.00 (0.772 x 0.276 x 0.394 inch) min case material plastic (UL94-V0) typ mm weight 2.4 g MECHANICAL DRAWING units: mm[inch] tolerance: ±0.50[±0.020] pin section tolerance: ±0.10[±0.004] >@ >@ ∅1.00 [0.039] Front View >@ >@ 1 >@ >@ Bottom View >@ >@ >@ Grid Size: 2.54mm x 2.54mm 7 PIN CONNECTIONS PIN 5 6 PCB Layout Top View >@ 2 cui.com Single Output Dual Output 1 Vin Vin 2 GND GND 5 0V -Vo 6 No Pin 0V 7 +Vo +Vo CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 03/21/2013 │ page 4 of 6 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 85 105 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT LDM Vin Vin EUT C1 GND Recommended external circuit components +Vo GN D LOAD - Vo (0V) C2 Vin (Vdc) C1 LDM C2 5 475K/50V 6.8μH NC 12 475K/50V 6.8μH NC 15 475K/50V 6.8μH 470pF/3kV 24 475K/50V 6.8μH 470pF/3kV TEST CONFIGURATION Oscilloscope Lin Cin External components 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 120 CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 03/21/2013 │ page 5 of 6 APPLICATION NOTES 1. Requirement on output load 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 1). 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 1). Single Output +Vo Vin GND Figure 1 DC DC Cin 0V Dual O ut put Vin GND Table 1 Cout Vin (Vdc) Cin (µF) Cout DC DC Cin Single Vo (Vdc) +Vo 0V Cout Cout (µF) Vo Dual Vo (Vdc) Cout (µF) 5 4.7 5 10 ±5 4.7 12 2.2 12 2.2 ±12 1 15 2.2 15 1 ±15 0.47 24 1 24 1 ±24 0.47 It’s not recommended to connect any external capacitors in applications with less than 0.5 watt 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 2). The recommended capacitance of its filter capacitor (see Table 1), and the linear regulator is based on the actual voltage and current required. Single Output Vin REG GND Figure 2 +Vo 0V Dual Output Vin GND Note: REG DC DC REG REG +Vo REG -Vo DC DC 0V 1. Operation under minimum load will not damage the converter; however, they may not meet all specifications listed. 2. Max. capacitive load tested at input voltage range and full load. 3. All specifications measured at: Ta=25°C, humidity<75%, nominal input voltage and rated output load, unless otherwise specified. cui.com CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 03/21/2013 │ page 6 of 6 REVISION HISTORY rev. 1.0 description date initial release 03/21/2013 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.