Moteur de recherche de fiches techniques de composants électroniques |
|
TPS40061PWPR Fiches technique(PDF) 9 Page - Texas Instruments |
|
|
TPS40061PWPR Fiches technique(HTML) 9 Page - Texas Instruments |
9 / 37 page 10 15 0.5 0 1.0 1.5 2.0 2.5 3.0 20 25 30 35 40 45 50 45 VUVLO - Undervoltage Lockout Threshold - V UNDERVOLTAGE LOCKOUT vs HYSTERESIS UDG-02132 Clock PWM RAMP PowerGood VIN UVLO Threshold 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 TPS40060 TPS40061 www.ti.com SLUS543F – DECEMBER 2002 – REVISED JUNE 2013 where: • VIN is the desired start-up (UVLO) input voltage • RT is the timing resistor in kΩ (3) The variable UVLO function utilizes a 3-bit full adder to prevent spurious shut-downs or turn-ons due to spikes or fast line transients. When the adder reaches a total of seven counts in which the ramp duration is shorter the clock cycle a powergood signal is asserted, a soft-start initiated, and the upper and lower MOSFETs are turned off. Once the soft-start is initiated, the UVLO circuit must see a total count of seven cycles in which the ramp duration is longer than the clock cycle before an undervoltage condition is declared (See Figure 4). Figure 4. Undervoltage Lockout Operation Figure 5. Copyright © 2002–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: TPS40060 TPS40061 |
Numéro de pièce similaire - TPS40061PWPR |
|
Description similaire - TPS40061PWPR |
|
|
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 |