VX7809-500-W

Additional Resources: Product Page | 3D Model date 04/04/2023 page 1 of 7 SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR FEATURES • • • • • • • low Profile pin-out compatible with linear regulators high efficiency up to 95% no-load input current as low as 0.2 mA wide temperature range: -40°C ~ +85°C support negative output output short circuit protection 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 (%) VX7803-500-W 24 4.75~36 3.3 500 1.65 75 86 VX7805-500-W 24 12 6.5~36 7~31 5 -5 500 -300 2.5 1.5 75 75 90 80 VX7809-500-W 24 12~36 9 500 4.5 75 93 VX7812-500-W 24 12 15~36 8~24 12 -12 500 -150 6 1.8 75 75 94 84 VX7815-500-W 24 12 19~36 8~21 15 -15 500 -150 7.5 2.25 75 75 95 85 Notes: 1. For input voltages higher than 30 Vdc, a 22 µF / 50 V input capacitor is required. 2. Tested at nominal input, 10~100% load, 20 MHz bandwidth, with 10 µF electrolytic and 1 µF ceramic capacitor on the output. At loads below 10%, the max ripple and noise of the 3.3 & 5 Vdc outputs will be 150 mVp-p, and the other outputs will be 2% Vo. 3. Measured at min Vin, full load. 4. All specifications are measured at Ta=25°C, humidity < 75%, nominal input voltage, and rated output load unless otherwise specified. PART NUMBER KEY VX78 XX - 500 - W Base Number Output Voltage cui.com Output Current Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 04/04/2023 │ page 2 of 7 INPUT parameter conditions/description operating input voltage see Model section on page 1 for specific input voltage ranges min filter capacitor filter typ max units 0.2 1.5 mA typ max units 680 330 μF μF input reverse polartiy protection no no-load input current positive outputs OUTPUT parameter conditions/description maximum capacitive load2 for positive output applications for negative output applications 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 ±0.4 % load regulation at nominal input, 10~100% load ±0.4 ±1.5 % switching frequency at nominal input voltage, full load 850 kHz transient recovery time at nominal input voltage, 25% load step change 0.2 1 ms transient response deviation at nominal input voltage, 25% load step change 50 250 mV temperature coefficient at full load ±0.03 %/°C Note: min 550 2. The maximum capacitive load was tested at nominal input voltage, full load. 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 62368-1: EN, BS EN conducted emissions CISPR32/EN55032, class B (see Figure 5- ➁ for recommended circuit) radiated emissions CISPR32/EN55032, class B (see Figure 5- ➁ for recommended circuit) ESD IEC/EN61000-4-2, contact ± 4kV, perf. Criteria B radiated immunity IEC/EN61000-4-3, 10V/m, perf. Criteria A EFT/burst IEC/EN61000-4-4, ± 1kV, perf. Criteria B (see Figure 5- ① for recommended circuit) surge IEC/EN61000-4-5, line-line ± 1kV, perf. Criteria B (see Figure 5- ① for recommended circuit) conducted immunity IEC/EN61000-4-6, 3 Vr.m.s, perf. Criteria A MTBF as per MIL-HDBK-217F, 25°C RoHS 2011/65/EU 2,000,000 cui.com hours Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 04/04/2023 │ page 3 of 7 ENVIRONMENTAL parameter conditions/description min operating temperature storage temperature storage humidity non-condensing max units -40 typ 85 °C -55 125 °C 5 95 % max units 260 °C max units SOLDERABILITY parameter conditions/description hand soldering welding time: 10s (Max.) min typ MECHANICAL parameter conditions/description min dimensions 11.50 x 9.00 x 17.50 [0.453 x 0.354 x 0.689 inch] case material black flame-retardant heat-proof plastic (UL94V-0) weight units: mm [inch] tolerance: ±0.50[±0.020] wire type: UL1569 AWG22 (300V 105°C) PIN CONNECTIONS PIN mm 5 MECHANICAL DRAWING 1 (red) typ +OUTPUT -OUTPUT Vin Vin 2 (black) GND -Vo 3 (yellow) +Vo GND cui.com g Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR DERATING CURVE Figure 1 EFFICIENCY CURVES cui.com date 04/04/2023 │ page 4 of 7 Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 04/04/2023 │ page 5 of 7 TYPICAL APPLICATION CIRCUIT Figure 2 Positive Output Application Circuit Negative Output Application Circuit Figure 3 Table 1 Positive and Negative Output Paralleling Application Circuit External Capacitor Table Model Number C1, C3 C2, C4 (ceramic capacitor) (ceramic capacitor) VX7803-500-W 10 μF/50 V 22 μF/10 V VX7805-500-W 10 μF/50 V 22 μF/10 V VX7809-500-W 10 μF/50 V 22 μF/16 V VX7812-500-W 10 μF/50 V 22 μF/25 V VX7815-500-W 10 μF/50 V 22 μF/25 V Note: 1.C1 and C2 (C3 and C4) are required and should be connected close to the pin terminal of the module. 2.The capacitance of C1 and C2 (C3 and C4) refer to Sheet 1, it can be increased properly if required, and tantalum or low ESR electrolytic capacitors may also suffice. 3.When the products used as the circuit like figure 3, an inductor named as LDM up to 10μH is recommended in the circuit to reduce the mutual interference. 4.Cannot be used in parallel for output and hot swap. To reduce the output ripple furtherly, it is suggested to connect a “LC” filter at the output terminal, and recommended value of L is 10µH-47µH. Figure 4 Positive Output Ripple Reduction Circuit Negative Output Ripple Reduction Circuit cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 04/04/2023 │ 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 4.7 µF/50 V LDM2 12 µH 1. Part ① in Fig. 5 is for EMS test, part ➁ is for EMI filtering; parts ① and ➁ can be added based on actual requirement. cui.com Additional Resources: Product Page | 3D Model CUI Inc │ SERIES: VX78-500-W │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 04/04/2023 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 01/22/2020 1.01 company logo updated 04/14/2021 1.02 derating curve, efficiency curves and circuit figures updated 09/17/2021 1.03 safeties updated 12/20/2022 application circuits updated 04/04/2023 1.04 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.