Moteur de recherche de fiches techniques de composants électroniques |
|
TPS61087QDRCRQ1 Fiches technique(PDF) 11 Page - Texas Instruments |
|
|
TPS61087QDRCRQ1 Fiches technique(HTML) 11 Page - Texas Instruments |
11 / 30 page D avg forward P I V = × avg out I I = 2 - 0.35 IN S IN S out S V V V L V I f h æ ö æ ö æ ö = × × ç ÷ ç ÷ ç ÷ × è ø è ø è ø 11 TPS61087-Q1 www.ti.com SLVSB50B – DECEMBER 2011 – REVISED JUNE 2016 Product Folder Links: TPS61087-Q1 Submit Documentation Feedback Copyright © 2011–2016, Texas Instruments Incorporated TI recommends that the inductor current ripple is below 35% of the average inductor current. Equation 5 can be used to calculate the inductor value (L). where • Iout is the maximum output current in the application. (5) Table 3. Inductor Selection INDUCTOR VALUE TYPICAL DCR Isat SUPPLIER SIZE (L × W × H mm) COMPONENT CODE 1.2 MHz 4.2 µH 23 m Ω 2.2 A Sumida 5.7 × 5.7 × 3 CDRH5D28 4.7 µH 60 m Ω 2.5 A Wurth Elektronik 5.9 × 6.2 × 3.3 7447785004 5 µH 24 m Ω 2.9 A Coilcraft 7.3 × 7.3 × 4.1 MSS7341 5 µH 23 m Ω 2.4 A Sumida 7 × 7 × 3 CDRH6D28 4.6 µH 38 m Ω 3.15 A Sumida 7.6 × 7.6 × 3 CDR7D28 4.7 µH 33 m Ω 3.9 A Wurth Elektronik 7.3 × 7.3 × 3.2 7447789004 3.3 µH 30 m Ω 4.2 A Wurth Elektronik 7.3 × 7.3 × 3.2 7447789003 650 kHz 10 µH 51 m Ω 2.2 A Wurth Elektronik 7.3 × 7.3 × 3.2 744778910 10 µH 36 m Ω 2.7 A Sumida 8.3 × 8.3 × 3 CDRH8D28 6.8 µH 52 m Ω 2.9 A Sumida 7 × 7 × 2.8 CDRH6D26HPNP 6.2 µH 25 m Ω 3.3 A Sumida 8.3 × 8.3 × 6 CDRH8D58 10 µH 80 m Ω 3.5 A Coilcraft 12.95 × 9.4 × 5.08 DS3316P 10 µH 29 m Ω 4 A Sumida 8.3 × 8.3 × 4.5 CDRH8D43 6.8 µH 55 m Ω 4.1 A Wurth Elektronik 12.7 × 10 × 4.9 74454068 8.2.1.2.2 Rectifier Diode Selection To achieve high efficiency a Schottky type must be used for the rectifier diode. The reverse voltage rating must be higher than the maximum output voltage of the converter. The averaged rectified forward current (Iavg), the Schottky diode must be rated for, is equal to the output current (Iout). (6) Usually a Schottky diode with 2-A maximum average rectified forward current rating is sufficient for most applications. The Schottky rectifier can be selected with lower forward current capability depending on the output current but must be able to dissipate the power. The dissipated power (PD) is the average rectified forward current times the diode forward voltage (Vforward). (7) Typically the diode must be able to dissipate around 500 mW depending on the load current and forward voltage. See Table 4 for diode selection. Customers must verify and validate selected components for suitability with their application. Table 4. Rectifier Diode Selection Iavg VR Vforward SUPPLIER COMPONENT CODE 2 A 20 V 0.44 V Vishay Semiconductor SL22 2 A 20 V 0.5 V Fairchild Semiconductor SS22 |
Numéro de pièce similaire - TPS61087QDRCRQ1 |
|
Description similaire - TPS61087QDRCRQ1 |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |