V78E-500-SMT CUI | Alldatasheet

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Technical content

cui.com date 09/12/2018 page 1 of 10 SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR

FEATURES

  • 500 mA of output current
  • efficiency up to 95%
  • SMT package
  • industrial operating temp -40~+85°C
  • designed to meet IEC/EN 62368-1
  • 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 (%) V78E01-500-SMT 12 4.75~28 1.5 500 0.75 50 76 V78E02-500-SMT 12 4.75~32 2.5 500 1.25 50 81 V78E03-500-SMT 24 4.75~36 3.3 500 1.65 50 86 V78E05-500-SMT 24 6.5~36 5 500 2.5 50 90 V78E06-500-SMT 24 8~36 6.5 500 3.25 50 92 V78E09-500-SMT 24 12~36 9 500 4.5 50 93 V78E12-500-SMT 24 15~36 12 500 6 50 94 V78E15-500-SMT 24 19~36 15 500 7.5 50 95 Notes: 1. For input voltages higher than 30 Vdc, a 22 µF / 50 V input capacitor is required. For all other models, tested at 10~100% load. At loads below 20% for 1.5~3.3 Vdc output models, the max ripple and noise will be 100 mVp-p. At loads below 10% for all other models, 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 Base Number V78E XX-500-SMT-TR Output Voltage Output Current For more information, please visit the product page.

cui.com date 09/12/2018│ page 2 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR INPUT parameter conditions/description min typ max units operating input voltage5 4.75 36 Vdc filter capacitor filter input reverse polartiy protection no no-load input current 0.2 1.5 mA remote on/off6 turn on (3.2~8 Vdc or open circuit) turn off (<0.8 Vdc) input current when switched off 0.03 0.1 mA Note: 5. See Model section on page 1 for specific input voltage ranges. 6. The voltage of remote ON/OFF pin is relative to GND pin. OUTPUT parameter conditions/description min typ max units maximum capacitive load7 680 μF voltage accuracy at full load, input voltage range 1.5, 2.5, 3.3 Vdc output models all other models line regulation at full load, input voltage range ±0.2 ±0.4 % load regulation at 10~100 % load, input voltage range 1.5, 2.5 Vdc output models all other models ±0.6 voltage adjustment input voltage range ±10 %Vo switching frequency at full load, input voltage range

1.5 Vdc output model

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 50 200 mV temperature coefficient operating temperature -40 °C to +85 °C ±0.03 %/°C Note: 7. The maximum capacitive load was tested at nominal input voltage, full load. PROTECTIONS parameter conditions/description min typ max units short circuit protection continuous, auto recovery SAFETY AND COMPLIANCE parameter conditions/description min typ max units safety approvals CE conducted emissions CISPR32/EN55032, class B (external circuit required, see Figure 3-b) radiated emissions CISPR32/EN55032, class B (external circuit required, see Figure 3-b) ESD IEC/EN61000-4-2, contact ± 4kV, class B radiated immunity IEC/EN61000-4-3, 10V/m, class A EFT/burst IEC/EN61000-4-4, ± 1kV, class B (external circuit required, see Figure 3-a) surge IEC/EN61000-4-5, line-line ± 1kV, class B (external circuit required, see Figure 3-a) conducted immunity IEC/EN61000-4-6, 3 Vr.m.s, class A MTBF as per MIL-HDBK-217F, 25°C 2,000,000 hours RoHS yes For more information, please visit the product page.

cui.com date 09/12/2018│ page 3 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR Time (sec) Temperature (°C) Peak Temp 245°C (Max)

60 Sec Max

(>217°C) 250 245 217 200 150 100 ENVIRONMENTAL parameter conditions/description min typ max units operating temperature see derating curve -40 85 °C storage temperature -55 125 °C storage humidity non-condensing 95 % SOLDERABILITY parameter conditions/description min typ max units reflow soldering see reflow profile, refer to IPC/JEDEC J-STD-020D.1 245 °C MECHANICAL parameter conditions/description min typ max units case material black flame-retardant and heat resistant plastic (UL94V-0) weight 1.5 g MECHANICAL DRAWING units: mm [inch] tolerance: ±0.50[±0.020] pin section tolerance: ±0.10[±0.004] PIN CONNECTIONS PIN FUNCTION 1 +VIN 2 +VIN

3 GND

6 V adj

7 GND

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cui.com date 09/12/2018│ page 4 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR DERATING CURVE Ambient Temperature (°C) Load (%) -40 100 04 08 5 120 12071 EFFICIENCY CURVES 4.75 7 10 12 15 18 20 22 25 28 80Efficiency (%) 75 Input Voltage (Vdc) 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 V78E01-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E01-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) 4.75 8 11 14 17 20 23 26 29 32 80Efficiency (%) 75 Input Voltage (Vdc) V78E02-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E02-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 Temperature Derating Curve (Natural Convection) For more information, please visit the product page.

cui.com date 09/12/2018│ page 5 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR 4.75 8 12 16 20 24 28 31 34 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 V78E03-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E03-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) EFFICIENCY CURVES (CONTINUED) 6.5 10 13 16 20 24 27 30 33 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 80Efficiency (%) 70 100 Output Current (%) V78E05-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E05-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) 8 11 14 17 20 24 27 30 33 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 V78E06-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E06-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) For more information, please visit the product page.

cui.com date 09/12/2018│ page 6 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR 12 15 18 21 24 27 30 33 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 V78E09-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E09-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) EFFICIENCY CURVES (CONTINUED) 15 18 20 22 24 27 30 33 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 100 50Efficiency (%) Output Current (%) 100 V78E12-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E12-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) 19 21 23 25 27 29 31 33 35 36 90Efficiency (%) 85 Input Voltage (Vdc) 100 5 10 20 30 40 50 60 70 80 90 50Efficiency (%) Output Current (%) 100 V78E15-500-SMT Efficiency Curve Efficiency vs. Input Voltage (at full load) V78E15-500-SMT Efficiency Curve Efficiency vs. Load Current (at Vin nominal) For more information, please visit the product page.

cui.com date 09/12/2018│ page 8 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR 1. Output voltage trimming Leave open if not used. Application Circuit for Trim pin Formula for Trim Resistor (part in broken line is the interior of models) Note: Value for R1, R2, R3, and Vref refer to Table 3 Ra1/Ra2: Trim Resistor a: User-defined parameter, no actual meanings Vo': The trim up/down voltage APPLICATION NOTES Figure 4 Table 3 Vout (Vdc) (kΩ) (kΩ) (kΩ) Vref (V) 1.511 7.5 7.5 15 0.75 2.5 27 11.858 51 0.765 3.3 33 9.9 47 0.765 5 75 13.5 75 0.765 6.5 75 10 51 0.765 9 51 4.7 27 0.765 12 75 5.1 27 0.765 15 82 4.423 27 0.765 Note: 11. The 1.5 Vdc output model can only be adjusted up. Vre f Ra2 Vadj Vo’ Vref Ra1 Vadj Vo’ Vadj up Vadj down up: a= Vref Vo’-Vref R1R=a2 aR2 R- a2 -R3 dow n: a= Vref Vo’-Vref R2R=a1 aR1 R- a1 -R3 For more information, please visit the product page.

cui.com date 09/12/2018│ page 9 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR PACKAGING units: mm Reel Size: Ø330 mm Reel QTY: 300 pcs per tray Carton Box Size: 400 x 365 x 255 mm Carton Box QTY: 1,800 pcs per carton box For more information, please visit the product page.

date 09/12/2018│ page 10 of 10CUI Inc │ SERIES: V78E-500-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR 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. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com techsupport@cui.com rev. description date 1.0 initial release 09/12/2018 The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY

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