For more information, please visit the product page. date 11/19/2015 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 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 86% MODEL input voltage PEM2-S5-S5-S1 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 (%) 5 4.5~5.5 5 40 400 2 75 82 1 PEM2-S5-S12-S 5 4.5~5.5 12 17 167 2 75 82 PEM2-S5-S15-S1 5 4.5~5.5 15 13 133 2 75 83 PEM2-S5-S24-S 5 4.5~5.5 24 8 83 2 75 84 PEM2-S5-D5-S1 5 4.5~5.5 ±5 ±20 ±200 2 75 80 1 PEM2-S5-D12-S 5 4.5~5.5 ±12 ±8 ±83 2 75 83 PEM2-S5-D15-S1 5 4.5~5.5 ±15 ±7 ±67 2 75 82 1 PEM2-S5-D24-S 5 4.5~5.5 ±24 ±4 ±42 2 75 84 PEM2-S12-S5-S1 12 10.8~13.2 5 40 400 2 75 82 1 PEM2-S12-S12-S 12 10.8~13.2 12 17 167 2 75 84 PEM2-S12-S15-S1 12 10.8~13.2 15 13 133 2 75 85 PEM2-S12-D5-S 12 10.8~13.2 ±5 ±20 ±200 2 75 80 PEM2-S12-D12-S1 12 10.8~13.2 ±12 ±8 ±83 2 75 84 PEM2-S12-D15-S 12 10.8~13.2 ±15 ±7 ±67 2 75 84 PEM2-S15-S5-S 15 13.5~16.5 5 40 400 2 75 80 PEM2-S15-D15-S 15 13.5~16.5 ±15 ±7 ±67 2 75 84 PEM2-S24-S5-S 24 21.6~26.4 5 40 400 2 75 80 PEM2-S24-S12-S1 24 21.6~26.4 12 17 167 2 75 84 1 PEM2-S24-S15-S 24 21.6~26.4 15 13 133 2 75 86 PEM2-S24-S24-S1 24 21.6~26.4 24 8 83 2 75 86 PEM2-S24-D5-S 24 21.6~26.4 ±5 ±20 ±200 2 75 80 PEM2-S24-D12-S1 24 21.6~26.4 ±12 ±8 ±83 2 75 84 PEM2-S24-D15-S 24 21.6~26.4 ±15 ±7 ±67 2 75 84 1 1 1 1 1 1 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: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 11/19/2015 │ page 2 of 6 PART NUMBER KEY PEM2 - 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 5 Vdc input models 12 Vdc input models 15 Vdc input models 24 Vdc 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 Vdc input models 12 Vdc input models 15 Vdc input models 24 Vdc 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 % OUTPUT parameter conditions/description min typ line regulation for Vin change of 1% load regulation measured from 10% load to full load 5 Vdc output models 12 Vdc output models 15 Vdc output models 24 Vdc output models voltage accuracy see tolerance envelope curve voltage balance dual output, balanced loads ±0.5 switching frequency 100% load, nominal input voltage 100 temperature coefficient 100% load 12 8 7 6 % % % % ±1 % kHz ±0.03 %/°C max units 1 s max units PROTECTIONS parameter conditions/description min typ short circuit protection 1 Notes: 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 at 1 mA max. 3,000 Vdc isolation resistance input to output, at 500 Vdc 1,000 MΩ 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 @ 25°C 2 RoHS Notes: min 3,500,000 2011/65/EU 2. See specific models noted on page 1 cui.com typ hours For more information, please visit the product page. CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 11/19/2015 │ 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 hand soldering wave soldering min typ max units 1.5 mm from case for 10 seconds 300 °C 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 dimensions 19.65 x 7.05 x 10.16 (0.774 x 0.278 x 0.400 inch) min case material plastic (UL94-V0) weight typ mm 2.4 g MECHANICAL DRAWING PIN CONNECTIONS PIN Single Output Dual Output 1 Vin Vin 2 GND GND 5 0V -Vo 6 No Pin 0V 7 +Vo +Vo Front View Grid Size: 2.54mm x 2.54mm 19.65 [0.774] PCB Layout Top View Bottom View cui.com 7.05 [0.278] 10.16 [0.400] units: mm[inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004] For more information, please visit the product page. CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 11/19/2015 │ page 4 of 6 DERATING CURVES Max l Loa dL Typic a 5 0 Min -5 100 ine 2.5 Rated Output Voltage Load (%) Output Voltage Accuracy (%) Temperature Derating Curve Tolerance Envelope Curve 10 -2.5 -7.5 -10 80 60 Safe operating area 40 20 -15 10 20 40 60 80 100 -40 Output Current Percentage (%) (Nominal Input Voltage) -20 0 20 40 60 85 105 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Figure 1 Table 1 Recommended external circuit components LDM Vin Vin C1 C2 GND +Vo DC/DC Cout LOAD -Vo (0V) GND Vin (Vdc) C1, C2 CY LDM 5 4.7μF/50V - 6.8μH 12 4.7μF/50V - 6.8μH 15 4.7μF/50V - 6.8μH 24 4.7μF/50V 1nF/3kV 6.8μH Note: 1. See Table 3 for Cout values. CY 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 120 For more information, please visit the product page. CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 11/19/2015 │ 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 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 Dual O utput Single Ou tpu t +Vo Vin GN D Cout DC DC Cin Vin GN D 0V DC DC Cin Table 3 Cout Cin (µF) Single Vo (Vdc) Cout (µF) Dual Vo (Vdc) Cout (µF) 5 4.7 5 10 ±5 12 2.2 12 2.2 15 2.2 15 24 1 24 -Vo Max. Capacitive Load1 (μF) 220 5 100 220 12 100 15 220 15 100 24 220 24 100 Max. Capacitive Load (μF) 4.7 5 ±12 1 12 1 ±15 0.47 1 ±24 0.47 It’s not recommended to connect any external capacitors in applications with less than 0.5 watt output. Note: 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 1), and the linear regulator is based on the actual voltage and current required. Single Output Vin REG GND REG +Vo DC DC 0V Dual Output Vin GND Note: 0V Dual Vout (Vdc) Single Vout (Vdc) Figure 4 +Vo Table 4 Vin (Vdc) Note: Cout REG REG DC DC +Vo 0V REG -Vo 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 For more information, please visit the product page. CUI Inc │ SERIES: PEM2-S │ DESCRIPTION: DC-DC CONVERTER date 11/19/2015 │ page 6 of 6 REVISION HISTORY rev. description date 1.0 initial release 03/21/2013 1.01 added UL approval to some models, updated spec 02/26/2015 1.02 added model, updated emc recommendations, updated datasheet 11/19/2015 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.