DRQ74-821-R | DigiCamel IC Datasheet

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Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
PDF pages: 7

Technical content

Dual Winding, Shielded Inductors/Transformer

1207 BU-SB07326 Page 1 of 7 Data Sheet 4311

Description

125° C maximum total operating temperature
Dual winding inductors that can be used as either a single inductor, or in coupled inductor/transformer applications (1:1 turns ratio)
Four sizes of shielded drum core inductors
Windings can be connected in series or parallel, offering a broad range of inductance and current ratings
Peak current ratings from 0.13 amps to 56 amps
RMS current ratings from 0.128 amps to 17.9 amps
Inductance ratings from 0.33µH to 4.02mH
Surface Mount
200Vac Isolation between windings
Ferrite core material

Applications

As a transformer: SEPIC, flyback
As an inductor: buck, boost, coupled inductor
DC-DC converters
VRM inductor for CPU and DDR power supplies
Input and output filter chokes Environmental Data
Storage temperature: -40°C to +125°C
Operating temperature: -40°C to +125°C (range is application specific).
Solder reflow temperature: 260°C max. for 10 seconds max. Packaging
Supplied in tape and reel packaging, 1350 (DRQ73), 1100 (DRQ74), 600 (DRQ125), and 350 (DRQ127) per reel Parallel Ratings Series Ratings Part Number Rated OCL (1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) OCL(1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) Inductance +/-20% Amps Amps typ. µ-Sec +/-20% Amps Amps typ. µ-Sec (µH) (µH) Peak (µH) Peak 1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc Parallel: (1,2 -4,3) Series: (1-4) tie (2-3) 2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. 3) Peak current for approximately 30% roll-off at 20°C 4) DCR limits @ 20°C 5) Applied Volt-Time product (V-µS) across the inductor. This value represents the applied V-µS at 100KHz necessary to generate a core loss equal to 10% of the total losses for a 40° C temperature rise. 6) Turns Ratio (1:3):(2-4) 1:1 7) Part number definition: DRQxxx-yyy-R DRQxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant

1207 BU-SB07326 Page 2 of 7 Data Sheet 4311

Parallel Ratings Series Ratings Part Number Rated OCL (1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) OCL(1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) Inductance +/-20% Amps Amps typ. µ-Sec +/-20% Amps Amps typ. µ-Sec (µH) (µH) Peak (µH) Peak 1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc Parallel: (1,2 -4,3) Series: (1-4) tie (2-3) 2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. 3) Peak current for approximately 30% roll-off at 20°C 4) DCR limits @ 20°C 5) Applied Volt-Time product (V-µS) across the inductor. This value represents the applied V-µS at 100KHz necessary to generate a core loss equal to 10% of the total losses for a 40°C temperature rise. 6) Turns Ratio (1:3):(2-4) 1:1 7) Part number definition: DRQxxx-yyy-R DRQxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant

1207 BU-SB07326 Page 3 of 7 Data Sheet 4311

Parallel Ratings Series Ratings Part Number Rated OCL (1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) OCL(1) Irms (2) Isat (3) DCR ΩΩ (4) Volt(5) Inductance +/-20% Amps Amps typ. µ-Sec +/-20% Amps Amps typ. µ-Sec (µH) (µH) Peak (µH) Peak 1) Open Circuit Inductance Test Parameters: 100kHz, 0.25 Vrms, 0.0 Adc Parallel: (1,2 -4,3) Series: (1-4) tie (2-3) 2) RMS current for an approximate ΔT of 40°C without core loss. It is recommended that the temperature of the part not exceed 125°C. 3) Peak current for approximately 30% roll-off at 20°C 4) DCR limits @ 20°C 5) Applied Volt-Time product (V-µS) across the inductor. This value represents the applied V-µS at 100KHz necessary to generate a core loss equal to 10% of the total losses for a 40°C temperature rise. 6) Turns Ratio (1:3):(2-4) 1:1 7) Part number definition: DRQxxx-yyy-R DRQxxx = product code and size, -yyy = inductance value in µH, R = decimal point. If no R is present, third character = # of zeros -R suffix = RoHS compliant

1207 BU-SB07326 Page 4 of 7 Data Sheet 4311

0.60 6.1 0.73 7.6 Max Side ViewTop View DRQ74 ### 7.97.9 Series ModeDual Inductor Mode 1.73 Recommended Pad Layout 0.40 1.73 1.00 1.00 0.40 Series ModeDual Inductor Schematic Parallel Mode L1 L2 7.6 Max 4.45 Max Dimensions - mm DRQ73 Series Bottom View 0.60 6.1 0.73 0.8 0 7.6 Max. Side View Top View DRQ73 ### 7.97.9 Series ModeDual Inductor Mode 1.73 Recommended Pad Layout 0.40 1.73 1.00 1.00 0.40 Series ModeDual Inductor Schematic L2L1 Parallel Mode

3.55 Max

7.6 Max. DRQ74 Series Dimensions in millimeters. ### = Inductance value per family chart Dot indicates pin #1

1207 BU-SB07326 Page 5 of 7 Data Sheet 4311

2.50 2.05 10.0 Bottom View 2.00 2 12.5 Max4 DRQ127 ### wwllyy R Dual Inductor Mode Se ries Mode 3.85 13.80 Recommended Pad Layout 13.80 0.50 3.85 2.50 0.50 12.5 Max 8.0 Max Side View Top View Schematic Dual Inductor Series Mode L2 L2 Parallel Mode 2.50 2.05 12.5 Max 10.0 2.00 12.5 Max Bottom View Side View Top View 6.00 Max DRQ125 ### wwllyy R Dual Inductor Mode Series Mode 3.85 13.80 Recommended Pad Layout 13.80 0.50 3.85 2.50 3 2 0.50 Schematic Series Mode L1L1L 2 34 3 Dual Inductor 12 1 L2L1L2 4 3 4 Parallel Mode 2 1 2 Dimensions - mm DRQ125 Series DRQ127 Series Dimensions in millimeters. ### = Inductance value per family chart wwllyy = (date code) R = revision level Dot indicates pin #1

1207 BU-SB07326 Page 6 of 7 Data Sheet 4311

A A DRQ74 ### Ko BoBo 2.00 ±0.1 0.1 4.00 Ø 1.50 +0.1/-0.0 Ao 16.00 ±0.30.3 7.50±0.1 1.75±0.10 Ø 1.50 Min. 12.0012.00 DRQ74 Series Supplied in tape and reel packaging, 1100 parts per reel, 13" diameter reel. A A DRQ125 ### wwllyy SECTION A-A 1.5 dia +0.1/-0.0 1.5 dia min 4.0 2.0 16.00 1.7 11.511.5 24.0 +/-0.3+/-0.3B0B0 DRQ125 Series Supplied in tape and reel packaging, 600 parts per reel, 13" diameter reel. A A DRQ127 ### wwllyy SECTION A-A R0.3 max. R0.5 TYP. 1.5 dia +0.1/-0.0 1.5 dia min 4.0 2.0 20.00 1.7 11.511.5 24.0 +/-0.3+/-0.3B0B0 DRQ127 Series Supplied in tape and reel packaging, 350 parts per reel, 13" diameter reel. Packaging Information DRQ73 Series Supplied in tape and reel packaging, 1350 parts per reel, 13" diameter reel. Dimensions are in millimeters. Direction of Feed ➞ Direction of Feed ➞ Direction of Feed ➞ Direction of Feed ➞ Ao=7.90mm Bo=7.90mm Ko=3.80mm Ao=7.90mm Bo=7.90mm Ko=4.70mm Ao=13.00mm Bo=13.00mm Ko=6.30mm Ao=13.00mm Bo=13.00mm Ko=8.30mm ACTUAL SIZE DRQ73 ACTUAL SIZE DRQ74 ACTUAL SIZE DRQ125 ACTUAL SIZE DRQ127

1207 BU-SB07326 Page 7 of 7 Data Sheet 4311

This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Bussmann reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Cooper Bussmann also r eserves the right to c hange or update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the user in all possible applications. Life Support Policy: Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems ar e devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. North America Cooper Bussmann

1225 Broken Sound Parkway NW

Boca Raton, FL 33487-3533 Tel: 1-561-998-4100 Fax: 1-561-241-6640 Toll Free: 1-888-414-2645 Cooper Bussmann P .O. Box 14460 St. Louis, MO 63178-4460 Tel: 1-636-394-2877 Fax: 1-636-527-1607 Europe Cooper Bussmann Cooper (UK) Limited Burton-on-the-Wolds Leicestershire • LE12 5TH UK Tel: +44 (0) 1509 882 737 Fax: +44 (0) 1509 882 786 Cooper Bussmann Avda. Santa Eulalia, 290 08223 Terrassa, (Barcelona), Spain Tel: +34 937 362 812 +34 937 362 813 Fax: +34 937 362 719 Asia Pacific Cooper Bussmann

1 Jalan Kilang Timor

#06-01 Pacific Tech Centre Singapore 159303 Tel: +65 278 6151 Fax: +65 270 4160 100 0 20 40 60 80 100 120 140 160 % of Isat OCL (%) OCL vs Isat DRQ73 100 0 20 40 60 80 100 120 140 160 180 % of Isat OCL (%) OCL vs Isat DRQ74 100 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 % of Isat OCL (%) OCL vs Isat DRQ125 100 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 % of Isat OCL (%) OCL vs Isat DRQ127 Irms DERATING WITH CORE LOSS % of Applied Volt-µSecond % of Losses from Irms (maximum)

300 KHz

200 KHz

100 KHz

50 KHz

25 KHz

Inductance Characteristics Core Loss

Product Information

DRQ74-821-R specifications and overview.

Summary

Dual Winding, Shielded Inductors/Transformer

Description

Dual Winding, Shielded Inductors/Transformer

Source title DRQ74-821-R Datasheet(PDF) - Cooper Bussmann, Inc.

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