 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LTC3856 Datasheet(PDF) 4 Page - Linear Technology |
|
|
|||||||||||||||||||||||||||||
LTC3856 Datasheet(HTML) 4 Page - Linear Technology |
|
|
4 / 40 page  LTC3856 3856f elecTrical characTerisTics The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 15V, VRUN = 5V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS TG1,2 tr TG1,2 tf TG Transition Time Rise Time Fall Time (Note 6) CLOAD = 3300pF CLOAD = 3300pF 25 25 ns ns BG1,2 tr BG1,2 tf BG Transition Time Rise Time Fall Time (Note 6) CLOAD = 3300pF CLOAD = 3300pF 25 25 ns ns TG/BG t1D Top Gate Off to Bottom Gate On Delay Synchronous Switch-On Delay Time CLOAD = 3300pF Each Driver 30 ns BG/TG t2D Bottom Gate Off to Top Gate On Delay Top Switch-On Delay Time CLOAD = 3300pF Each Driver 30 ns tON(MIN) Minimum On-Time (Note 7) 90 ns INTVCC Linear Regulator VINTVCC Internal VCC Voltage 6V < VIN ≤ 38V 4.8 5.0 5.2 V VLDO INT INTVCC Load Regulation ICC = 0mA to 20mA 0.5 2.0 % VEXTVCC EXTVCC Switchover Voltage EXTVCC Ramping Positive l 4.5 4.7 V VLDO EXT EXTVCC Voltage Drop ICC = 20mA, VEXTVCC = 5V 50 100 mV VLDOHYS EXTVCC Hysteresis 200 mV Oscillator and Phase-Locked Loop fNOM Nominal Frequency VFREQ = 1.2V 450 500 550 kHz fLOW Lowest Frequency VFREQ = 0V 210 250 290 kHz fHIGH Highest Frequency VFREQ ≥ 2.4V 700 770 850 kHz RMODE MODE Input Resistance 250 kΩ IFREQ Frequency Setting Output Current 9 10 11 µA CLKOUT Phase (Relative to Controller 1) PHASMD = GND; Non Stage Shedding Mode PHASMD = FLOAT; Non Stage Shedding Mode PHASMD = INTVCC; Non Stage Shedding Mode Stage Shedding Mode 60 90 120 180 Deg Deg Deg Deg CLKHIGH Clock High Output Voltage 4 5 V CLKLOW Clock Low Output Voltage 0 0.2 V PGOOD Output VPGL PGOOD Voltage Low IPGOOD = 2mA 0.1 0.2 V IPGOOD PGOOD Leakage Current VPGOOD = 5V ±2 µA VPG PGOOD Trip Level, Either Controller VFB with Respect to Set Output Voltage VFB Ramping Negative VFB Ramping Positive –10 10 % % |
|
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
