PXO7812-500-S

Additional Resources: Product Page | 3D Model | PCB Footprint date 09/12/2023 page 1 of 7 SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR FEATURES • • • • • • economical open-frame design designed to meet EN/BS 62368 no-load input current as low as 0.2 mA supports negative output output short circuit protection designed to meet EN IEC 62368-1 & BS EN IEC 62368-1 MODEL input voltage1 output voltage output current output power ripple & noise2 efficiency3 typ (Vdc) range (Vdc) (Vdc) max (mA) max (W) max (mVp-p) typ (%) PXO7803-500-S 24 12 4.75~36 7~32 3.3 -3.3 500 -300 1.65 0.99 100 85 73 PXO7805-500-S 24 12 6.5~36 7~31 5 -5 500 -300 2.5 1.5 100 90 76 PXO7806-500-S 24 12 8~36 7~29 6.5 -6.5 500 -300 3.25 1.95 100 91 76 PXO7809-500-S 24 12 12~36 8~27 9 -9 500 -150 4.5 1.35 100 93 83 PXO7812-500-S 24 12 15~36 8~24 12 -12 500 -150 6.0 1.8 100 94 85 PXO7815-500-S 24 12 19~36 8~21 15 -15 500 -150 7.5 2.25 100 95 80 Notes: 1. For input voltages higher than 30 Vdc, a 22 µF / 50 V input capacitor is required. 2. Tested at nominal input, 20~100%, 20 MHz bandwidth. At loads below 20%, the max ripple and noise will be 300 mVp-p max. 4. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified. PART NUMBER KEY PXO78 XX - 500 - S Base Number Output Voltage cui.com Output Current Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/12/2023 │ page 2 of 7 INPUT parameter conditions/description min typ max units 0.2 1 1.5 10 mA mA typ max units 680 330 μF μF input reverse polarity protection no no-load input current positive output at nominal input voltage negative output at nominal input voltage filter capacitor filter OUTPUT parameter conditions/description maximum capacitive load positive output negative output min voltage accuracy at full load, input voltage range 3.3 Vdc output model all other models ±2 ±2 ±4 ±3 % % line regulation at full load, input voltage range ±0.2 ±0.5 % load regulation at nominal input, 0~100% load ±0.3 ±1 % switching frequency at nominal input voltage, full load 700 transient recovery time at nominal input voltage, 25% load step change 0.2 1 transient response deviation at nominal input voltage, 25% load step change ±50 ±250 temperature coefficient operating temperature -40°C~80°C kHz ±0.02 ms mV %/°C PROTECTIONS parameter conditions/description short circuit protection continuous, auto recovery min typ max units min typ max units SAFETY AND COMPLIANCE parameter conditions/description safety approvals designed to meet 62368: EN/IEC conducted emissions CISPR32/EN55032 CLASS B (see Fig. 5-2 for recommended circuit) radiated emissions CISPR32/EN55032 CLASS B (see Fig. 5-2 for recommended circuit) ESD IEC/EN 61000-4-2 Contact ±4kV, perf. Criteria B radiated immunity IEC/EN 61000-4-3 10V/m, perf. Criteria A EFT/burst IEC/EN 61000-4-4 ±1kV (see Fig. 5-1 for recommended circuit), perf. Criteria B surge IEC/EN 61000-4-5 line to line ±1kV (see Fig. 5-1 for recommended circuit, perf. Criteria B conducted immunity IEC/EN 61000-4-6 3 Vrms, perf. Criteria A MTBF as per MIL-HDBK-217F, 25°C RoHS yes 2,000,000 cui.com hours Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/12/2023 │ page 3 of 7 ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curve -40 85 °C -55 125 °C 5 95 % max units 260 °C max units storage temperature storage humidity non-condensing typ SOLDERABILITY parameter conditions/description pin soldering resistance temperature soldering time: 10 seconds min typ MECHANICAL parameter conditions/description dimensions 10.27 x 6.00 x 8.61 [0.404 x 0.236 x 0.339 inch] min typ mm weight cooling method 0.6 g natural convection MECHANICAL DRAWING units: mm [inch] tolerance: ±0.50[±0.020] pin section tolerance: ±0.20[±0.008] PIN-OUT PIN cui.com POSITIVE OUTPUT NEGATIVE OUTPUT FUNCTION FUNCTION 1 Vin Vin 2 GND -Vout 3 Vout GND Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR DERATING CURVE Figure 1 EFFICIENCY CURVES cui.com | PCB Footprint date 09/12/2023 │ page 4 of 7 Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/12/2023 │ page 5 of 7 TYPICAL APPLICATION CIRCUIT Figure 2 Positive output Negative output Figure 3 Table 1 Positive output and Negative output Model Number Note: 1. 2. 3. 4. 5. C1/C3 C2/C4 (ceramic capacitor) (ceramic capacitor) PXO7803-500-S 10 μF/50 V 22 μF/10 V PXO7805-500-S 10 μF/50 V 22 μF/10 V PXO7806-500-S 10 μF/50 V 22 μF/16 V PXO7809-500-S 10 μF/50 V 22 μF/16 V PXO7812-500-S 10 μF/50 V 22 μF/25 V PXO7815-500-S 10 μF/50 V 22 μF/25 V The required capacitors C1 and C2 (C3 and C4) must be connected as close as possible to the terminals of the module. Refer to Table 1 for C1 and C2 (C3 and C4) capacitor values. For certain applications, increased values and/or tantalum or low ESR electrolytic capacitors may also be used instead. When using configurations as shown in Figure 3, we recommended to add an inductor (LDM) with a value of up to 10μH which helps reducing mutual interference. Converter cannot be used for hot swap and with output in parallel. To further reduce the output ripple and noise, we suggested the use of a “LC” filter at the output terminals, with an inductor value (L) of 10µH-47µH. Figure 4 “LC” output filter application cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/12/2023 │ page 6 of 7 EMC RECOMMENDED CIRCUIT Figure 5 Table 2 Recommended external circuit components Note: FUSE choose according to actual input current MOV S20K30 LDM1 82 µH C0 680 µF/50 V C1 / C2 see Table 1 C5 10 µF/50 V LDM2 22 µH For EMC tests we use Part ① in Fig. 5 for immunity and part ➁ for emissions test. Selecting based on needs. cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: PXO78-500-S │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 09/12/2023 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 10/18/2022 1.01 application circuits updated 04/04/2023 1.02 efficiency curves updated 09/12/2023 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.