V78E-1000-SMT_V01 CUI | Alldatasheet

Document overview

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Technical content

cui.com date 06/09/2021 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
  • EN 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 (%) 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 Base Number V78E XX-1000-SMT-TR Output Voltage Output Current Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 2 of 9CUI Inc │ SERIES: V78E-1000-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 1.0 mA remote on/off6 turn on (3.2~5.5 Vdc or open circuit) turn off (<0.8 Vdc) input current when switched off 0.2 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 1.5, 2.5 Vdc output models all other models ±0.3 ±0.2 ±0.6 ±0.4 load regulation at 10~100 % load, input voltage range 1.5, 2.5 Vdc output models all other models ±0.8 ±0.3 ±1.5 ±0.6 voltage adjustment input voltage range ±10 %Vo switching frequency at full load, input voltage range 1.5, 2.5 Vdc output models 3.3, 5, 6.5 Vdc output models all other models 370 520 700 kHz kHz 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 50 150 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 certified to 62368-1: EN 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 Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 3 of 9CUI Inc │ SERIES: V78E-1000-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 curves -40 85 °C storage temperature -55 125 °C storage humidity non-condensing 5 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 1.7 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

6 V adj

7 GND

Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 4 of 9CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES DERATING CURVES Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 5 of 9CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES (CONTINUED) Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 6 of 9CUI Inc │ SERIES: V78E-1000-SMT │ DESCRIPTION: NON-ISOLATED DC SWITCHING REGULATOR EFFICIENCY CURVES (CONTINUED) Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 06/09/2021│ page 8 of 9CUI Inc │ SERIES: V78E-1000-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 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 Note: 11. The 1.5 Vdc output model can only be adjusted up. up: a= Vref Vo’-Vref R1R=a2 aR2 R- a2 -R3 dow n: a= Vref Vo’-Vref R2R=a1 aR1 R- a1 -R3 Additional Resources: Product Page | 3D Model | PCB Footprint

date 06/09/2021│ page 9 of 9CUI Inc │ SERIES: V78E-1000-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 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 The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY

Additional Resources: Product Page | 3D Model | PCB Footprint