V78E12-1000-SMT-TR

Additional Resources: Product Page | 3D Model | PCB Footprint date 03/24/2023 page 1 of 9 SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR FEATURES • • • • • • • 1 A of output current efficiency up to 95% SMT package industrial operating temp -40~+85°C industry standard footprint no load input current of 0.2 mA output short circuit protection on output 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 (%) V78E01-1000-SMT 12 4.75~32 1.5 1000 1.5 75 76 V78E02-1000-SMT 12 4.75~32 2.5 1000 2.5 75 86 V78E03-1000-SMT 24 6.5~36 3.3 1000 3.3 75 90 V78E05-1000-SMT 24 8~36 5 1000 5 75 93 V78E06-1000-SMT 24 10~36 6.5 1000 6.5 75 93 V78E09-1000-SMT 24 13~36 9 1000 9 75 94 V78E12-1000-SMT 24 16~36 12 1000 12 75 95 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% load, 20 Mhz bandwidth, with 10 µF electrolytic and 1 µF ceramic capacitor on the output. At loads below 20%, the max ripple and noise will be 150 mVp-p. 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 V78E XX-1000-SMT-XX Base Number Output Voltage Output Current cui.com Packaging: “blank” = Tube Packaging TR = Tape and Reel Tube Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 03/24/2023│ page 2 of 9 INPUT parameter conditions/description min operating input voltage5 typ max units 36 Vdc 0.2 1.0 mA 0.2 1 mA typ max units 680 μF 4.75 filter capacitor filter input reverse polartiy protection no no-load input current turn on (3.2~5.5 Vdc or open circuit) turn off (217°C) 150 100 50 0 Time (sec) MECHANICAL parameter conditions/description dimensions 15.24 x 8.50 x 8.25 [0.60 x 0.335 x 0.325 inch] min case material black flame-retardant and heat resistant plastic (UL94V-0) weight typ mm 1.7 g MECHANICAL DRAWING units: mm [inch] tolerance: ±0.25[±0.010] pin section tolerance: ±0.10[±0.004] PIN CONNECTIONS PIN FUNCTION 1 +VIN 2 +VIN 3 GND 4 +VOUT 5 +VOUT 6 V adj 7 GND 10 remote on/off Recommended PCB Layout Top View cui.com Additional Resources: Product Page | 3D Model | CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR DERATING CURVES EFFICIENCY CURVES cui.com PCB Footprint date 03/24/2023│ page 4 of 9 Additional Resources: Product Page | 3D Model | CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES (CONTINUED) cui.com PCB Footprint date 03/24/2023│ page 5 of 9 Additional Resources: Product Page | 3D Model | CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES (CONTINUED) cui.com PCB Footprint date 03/24/2023│ page 6 of 9 Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 03/24/2023│ page 7 of 9 TYPICAL APPLICATION CIRCUIT Figure 1 Figure 2 Application Circuit LC Filter Application Circuit Table 1 Model Number C1 C2 (ceramic capacitor) (ceramic capacitor) V78E01-1000-SMT 10 μF/50 V 22 μF/10 V V78E02-1000-SMT 10 μF/50 V 22 μF/10 V V78E03-1000-SMT 10 μF/50 V 22 μF/10 V V78E05-1000-SMT 10 μF/50 V 22 μF/16 V V78E06-1000-SMT 10 μF/50 V 22 μF/16 V V78E09-1000-SMT 10 μF/50 V 22 μF/16 V V78E12-1000-SMT 10 μF/50 V 22 μF/25 V Ra1/Ra2 (Vadj resistance) refer to Vadj resistance calculation EMC RECOMMENDED CIRCUIT Figure 3 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 refer to table 1 C5 4.7 µF/50 V LDM2 68 µH 8. C1 & C2 are required and should be connected as close to the module pins as possible. 9. C1 & C2 can be increased as needed and the use of tantalum or low ESR electrolytic capacitors would be recommended. 10. To reduce the output ripple further, it is recommended to add an “LC” filter at the output (see figure 2) with a 10~47 µH L component. cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 03/24/2023│ page 8 of 9 APPLICATION NOTES Output voltage trimming Leave open if not used. Figure 3 Table 3 VNOM RTOP RBOTTOM RO VREF (Vdc) (kΩ) (kΩ) (kΩ) (V) 7.5 7.5 15 0.75 2.5 9.1 3.9 8.2 0.75 3.3 75 22 75 0.75 5 43 7.5 33 0.75 6.5 43 5.6 22 0.75 9 43 3.9 22 0.75 12 36 2.4 10 0.75 1.5 11 Note: 11. The 1.5 Vdc output model can only be adjusted up. Note: Value for RTOP, RBOTTOM, RO, and VREF refer to Table 3 (fixed internal values). RTRIM: Trim resistance a: User-defined parameter, no actual meanings VNOM: Nominal output voltage VOUT: Target output voltage cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR date 03/24/2023│ page 9 of 9 REVISION HISTORY rev. description date 1.0 initial release 09/12/2018 1.01 features and safety line updated 01/12/2021 1.02 product image updated, packaging removed 05/19/2021 1.03 updated derating and efficiency curves and circuit figures 06/09/2021 1.04 safeties updated 01/25/2023 1.05 pn key updated 03/24/2023 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.