V78-1000-SMT_V01 CUI | Alldatasheet

Document overview

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Technical content

cui.com date 09/16/2020 page 1 of 6 SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR MODEL input voltage output voltage output current output power ripple and noise1 efficiency level2 range (Vdc) (Vdc) (mA) max (W) max (mVp-p) typ (%) V7801-1000-SMT* 4.75 ~ 15 1.5 1,000 1.5 35 76 V7801A-1000-SMT* 4.75 ~ 15 1.8 1,000 1.8 35 79 V7802-1000-SMT* 5 ~ 18 2.5 1,000 2.5 35 83 V7803-1000-SMT 5 ~ 18 3.3 1,000 3.3 35 84 V7805-1000-SMT 7 ~ 18 5.0 1,000 5 35 90 V7806-1000-SMT* 8.5 ~ 18 6.5 1,000 6.5 35 93 Notes: 1. 20 MHz bandwidth 2. Measured at Vin min. and 100% load *. Discontinued model

FEATURES

  • 1 A current output
  • high efficiency up to 93%
  • no heat sink required
  • SMT package
  • remote on/off control
  • low ripple and noise
  • short circuit protection, thermal shutdown
  • wide temperature (-40°C~+85°C) RoHS PART NUMBER KEY V78 XX - XXX -SMT- X Output VoltageBase Number Output Current Package Options "blank" = standard TR = Tape & Reel Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 09/16/2020 │ page 2 of 6CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR INPUT parameter conditions/description min typ max units operating input voltage 1.5, 1.8 Vdc models 2.5, 3.3 Vdc models

5.0 Vdc model

6.5 Vdc model

4.75 5.0 7.0 8.5 Vdc Vdc Vdc Vdc input filter capacitor 10 µF remote on/off on: off: open or 1.2 < Vc ≤ 6 V Vc < 0.6 V on/off control current on: off: open or 1.2 < Vc ≤ 6 V GND or Vc < 0.4 V 100 200 µA shutdown input current 120 200 µA OUTPUT parameter conditions/description min typ max units max capacitive load 1,000 µF line regulation measured from low line to high line at 100% load ±0.2 ±0.5 % load regulation measured from 10% to full load at nominal input ±0.4 ±1.0 % voltage accuracy measured from low line to high line at 100% load ±2 ±3 % adjustability1

1.8 Vdc model

2.5 Vdc model

3.3 Vdc model

1.5 1.5 1.8 2.5 3.6 3.9 5.5 6.5 Vdc Vdc Vdc Vdc switching frequency PWM type 1.4 MHz temperature coefficient -40 °C ~ +85 °C ambient ±0.02 %/°C PROTECTIONS parameter conditions/description min typ max units short circuit protection hiccup, continuous, automatic recovery thermal shutdown internal IC junction 150 °C current limit 1.8 A SAFETY AND COMPLIANCE parameter conditions/description min typ max units thermal resistance 90 °C/W conducted emissions CISPR22/EN55022 class A (without external circuit) CISPR22/EN55022 class B (external circuit required, see Figure 1-b) rediated emissions CISPR22/EN55022 class A (external circuit required, see Figure 1-b) ESD IEC/EN 61000-4-2, class B, contact ±6KV/ Air ±8KV radiated immunity IEC/EN 61000-4-3, class A, 10V/m EFT/burst IEC/EN 61000-4-4, class B, ±2KV (external circuit required, see Figure 1-a) surge IEC/EN 61000-4-5, class B, ±2KV (external circuit required, see Figure 1-a) conducted immunity IEC/EN 61000-4-6, class A, 3 Vr.ms voltage dips & interruptions IEC/EN 61000-4-29, class B, 0%-70% MTBF as per MIL-HDBK-217F, 25 °C 1,000,000 hours RoHS 2011/65/EU Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 09/16/2020 │ page 3 of 6CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR PIN CONNECTIONS 1 +Vin 7,9 GND 5 +Vout

6 Vadj

10 On/Off

units: mm [in] pin tolerance: ±0.10 mm [±0.004 in] general tolerance: ±0.25 mm [±0.010 in] ENVIRONMENTAL parameter conditions/description min typ max units case operating temperature 100 °C opertaing temperature see derating curve -40 85 °C storage temperature -55 125 °C storage humidity 95 % hand soldering for 10 seconds 260 °C reflow soldering refer to IPC/JEDEC J-STD-020D.1 240 °C MECHANICAL parameter conditions/description min typ max units dimensions 15.24 x 8.30 x 7.25 (0.600 x 0.327 x 0.285) mm inches case material Plastic (UL94-V0) weight 2.3 g MECHANICAL DRAWING Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 09/16/2020 │ page 4 of 6CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR TYPICAL APPLICATION CIRCUIT APPLICATION EXAMPLE DERATING CURVE 100 120 -40 04 08 51 2071 Safe OperatingArea Operating Temperature (°C) Output Power (%) V7805-1000-SMT 7,9 Vin GN D Vo ut 610 ON/O FF GN D47 0p F 7, 9 5Vin GND +V out 22 F C4 470p F Load L DC/DC Converter 1. C1 and C2 are required for best performance and should be fitted close to the converter pins. 2. See the capacitor values for C1 and C2 in the external capacitor table below. These can be increased if required and tantalum or low ESR electrolytic capacitors will also suffice. 3. No parallel connection or plug and play. To reduce output ripple, it is recommended to add a LC filter to the output port. L: Recommended parameter 10 ~ 47μH. EXTERNAL CAPACITOR TABLE MODEL C1 (Ceramic) C2 (Ceramic) V7801-1000-SMT 10 µF / 25 V 22 µF / 16 V V7801A-1000-SMT 10 µF / 25 V 22 µF / 16 V V7802-1000-SMT 10 µF / 25 V 22 µF / 16 V V7803-1000-SMT 10 µF / 25 V 22 µF / 16 V V7805-1000-SMT 10 µF / 25 V 22 µF / 16 V V7806-1000-SMT 10 µF / 25 V 22 µF / 16 V Additional Resources: Product Page | 3D Model | PCB Footprint

cui.com date 09/16/2020 │ page 5 of 6CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED SWITCHING REGULATOR EMC RECOMMENDED CIRCUIT a b V in GND FUSE MOV TVS LDM1 LDM2 C0 C1 EUT +Vin +Vout GND Load ADJUSTMENT RESISTOR VALUES MODEL V7801A-1000 V7802-1000 V7803-1000 V7805-1000 Vadj (V) R1 (kΩ) R2 (kΩ) R1 (kΩ) R2 (kΩ) R1 (kΩ) R2 (kΩ) R1 (kΩ) R2 (kΩ) The R1, R2 in the above table are used to set the output voltage. If no need to adjust the output voltage, connect a ceramic capacitor to GND with 470pF typical value for increase immunity. Insure the output voltage is in the adjust range or else may cause permanent damage to the device. Fine-tune output voltage must appease Vin-Vo>2V. Recommended External Circuit Components FUSE choose according to practical input current MOV 10D560 LDM1 82μH TVS SMCJ36A C0 120μF/50V C1 4.7μF/50V LDM2 33μH Figure 1 Table 1 Additional Resources: Product Page | 3D Model | PCB Footprint

date 09/16/2020 │ page 6 of 6CUI Inc │ SERIES: V78-1000-SMT │ DESCRIPTION: NON-ISOLATED 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 11/23/2011

1.01 V-Infinity branding removed 09/04/2012

1.02 added TR package option 10/31/2012 1.03 housing width changed, EMC recommendations updated 01/26/2016 1.04 discontinued V7802-1000-SMT model 10/23/2018 1.05 discontinued V7801-1000-SMT, V7801A-1000-SMT models 06/24/2019 1.06 discontinued V7806-1000-SMT model 09/16/2020 The revision history provided is for informational purposes only and is believed to be accurate.

REVISION HISTORY

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