For more information, please visit the product page. date 04/08/2014 page 1 of 6 SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • • • 1 W isolated output smaller package single regulated output 1,500 Vdc isolation continuous short circuit protection extended temperature range (-40~85°C) high efficiency at light load efficiency up to 75% input voltage MODEL 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 (%) PQM1-S5-S3-M 5 4.75~5.25 3.3 25 243 0.8 50 58 PQM1-S5-S5-M 5 4.75~5.25 5 20 200 1 50 72 PQM1-S5-S9-M 5 4.75~5.25 9 12 111 1 50 74 PQM1-S5-S12-M 5 4.75~5.25 12 9 84 1 50 73 PQM1-S5-S15-M 5 4.75~5.25 15 7 67 1 50 74 PQM1-S12-S5-M 12 11.4~12.6 5 20 200 1 50 73 PQM1-S12-S9-M 12 11.4~12.6 9 12 111 1 50 74 PQM1-S12-S12-M 12 11.4~12.6 12 9 84 1 50 73 PQM1-S12-S15-M 12 11.4~12.6 15 7 67 1 50 75 PQM1-S24-S5-M 24 22.8~25.2 5 20 200 1 50 73 PQM1-S24-S9-M 24 22.8~25.2 9 12 111 1 50 74 PQM1-S24-S12-M 24 22.8~25.2 12 9 84 1 50 73 PQM1-S24-S15-M 24 22.8~25.2 15 7 67 1 50 74 Note: 1. 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 PQM1 - SXX - S XX - M - X Base Number Input Voltage Output S = single cui.com Output Voltage Packaging Style "blank" = tube TR = tape & reel For more information, please visit the product page. CUI Inc │ SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ page 2 of 6 INPUT parameter conditions/description min typ max units operating input voltage 5 Vdc input models 12 Vdc input models 24 Vdc input models 4.75 11.4 22.8 5 12 24 5.25 12.6 25.2 Vdc Vdc Vdc surge voltage for maximum of 1 second 5 Vdc input models 12 Vdc input models 24 Vdc input models -0.7 -0.7 -0.7 9 18 30 Vdc Vdc Vdc filter capacitance filter max units ±0.25 % OUTPUT parameter conditions/description min line regulation for Vin change of 1% load regulation measured from 10% load to full load 3.3 Vdc output models all other models voltage accuracy at 100% load switching frequency at 100% load, nominal input voltage temperature coefficient at 100% load typ 3 1 100 % % ±3 % 300 kHz ±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 input to output for 1 minute at 1 mA max. 1,500 Vdc isolation resistance input to output at 500 Vdc 1,000 MΩ 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 2011/65/EU 3,500,000 hours ENVIRONMENTAL parameter conditions/description operating temperature see derating curve min storage temperature storage humidity non-condensing temperature rise at full load, Ta = 25°C typ max -40 85 °C -55 125 °C 95 25 cui.com units % °C For more information, please visit the product page. CUI Inc │ SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ page 3 of 6 SOLDERABILITY parameter conditions/description max units hand soldering 1.5 mm from case for 10 seconds min 300 °C reflow soldering see reflow soldering profile 245 °C max units Temperature(°C) 2 50 2 45 2 17 2 00 typ °C ( M a x .) P e a k . Te m p 2 4 5 6 0 S e c M ax ( > 2 1 7°C ) 1 50 1 00 50 0 Time (sec.) MECHANICAL parameter conditions/description dimensions 15.24 x 11.20 x 7.25 (0.600 x 0.441 x 0.285 inch) min case material epoxy resin (UL94-V0) weight typ mm 2.0 g 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 4/5 0V 7 +Vo 10 NC NC: No Connection Top View Top View PCB Layout Side View Front View cui.com For more information, please visit the product page. CUI Inc │ SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ page 4 of 6 DERATING CURVE Temperature Derating Curve Load (%) 100 80 60 Safe operating area 40 20 -40 -20 0 20 40 60 71 85 100 Ambient Temperature (°C) EMC RECOMMENDED CIRCUIT Figure 1 V in LDM C1 GND Table 1 Recommended external circuit components V in +Vo DC DC GND C2 LOAD 0V cui.com Vout (Vdc) C1 C2 LDM 3.3 4.7μF/50V 10μF 6.8μH 5 4.7μF/50V 10μF 6.8μH 9 4.7μF/50V 4.7μF 6.8μH 12 4.7μF/50V 2.2μF 6.8μH 15 4.7μF/50V 1μF 6.8μH For more information, please visit the product page. CUI Inc │ SERIES: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ 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 If you want to further decrease the input/output ripple, you can increase the capacitance accordingly or choose capacitors with low ESR (see Figure 2 & Table 2). 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 3). Figure 2 +Vo V in DC Cin DC Cout GND 0V Table 2 Vin (Vdc) Cin (μF) Vo (Vdc) Cout (μF) Vout (Vdc) 5 4.7 3.3 10 3.3 220 12 2.2 5 10 5 220 24 1 9 4.7 9 220 -- -- 12 2.2 12 220 -- -- 15 1 15 220 Note: Note: Table 3 Max. Capacitive Load (μF) It’s not recommended to connect any external capacitors in applications with less than 0.5 watt output. 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: PQM1-M │ DESCRIPTION: DC-DC CONVERTER date 04/08/2014 │ page 6 of 6 REVISION HISTORY rev. 1.0 description date initial release 04/08/2014 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.