 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
TLE6389 Datasheet(PDF) 30 Page - Infineon Technologies AG |
|
|
|||||||||||||||||||||||||||||
TLE6389 Datasheet(HTML) 30 Page - Infineon Technologies AG |
|
|
30 / 38 page  TLE 6389 Datasheet Rev. 2.1 30 2007-08-13 Figure 4 Reset timing 7.7 100% duty-cycle operation and dropout The TLE 6389 operates with a duty cycle up to 100%. This feature allows to operate with the lowest possible drop voltage at low battery voltage as it occurs at cold cranking. The MOSFET is turned on continuously when the supply voltage approaches the output voltage level, conventional switching regulators with less than 100% duty cycle would fail in that case. The drop- or dropout voltage is defined as the difference between the input and output voltage levels when the input is low enough to drop the output out of regulation. Dropout depends on the MOSFET drain-to-source on-resistance, the current-sense resistor and the inductor series resistance. It is proportional to the load current: t t V VOUT, RT V FB,RT t rr < t rr t t rd thermal shutdown under voltage over load t rd t rd t rd V IN V VOUT V FB V RO Vdrop ILOAD RDS ON ()PMOS RSENSE RINDUCTANCE ++ () ⋅ = |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
