Electronic Components Datasheet Search |
|
LTC3857IGN-1TRPBF Datasheet(PDF) 3 Page - Linear Technology |
|
LTC3857IGN-1TRPBF Datasheet(HTML) 3 Page - Linear Technology |
3 / 38 page LTC3857-1 38571fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN InputSupplyOperatingVoltageRange 4 38 V VFB1,2 RegulatedFeedbackVoltage (Note4)ITH1,2Voltage=1.2V –40°Cto125°C –40°Cto85°C l 0.788 0.792 0.800 0.800 0.812 0.808 V V IFB1,2 FeedbackCurrent (Note4) ±5 ±50 nA VREFLNREG ReferenceVoltageLineRegulation (Note4)VIN=4.5Vto38V 0.002 0.02 %/V VLOADREG OutputVoltageLoadRegulation (Note4) MeasuredinServoLoop, ∆ITHVoltage=1.2Vto0.7V l 0.01 0.1 % (Note4) MeasuredinServoLoop, ∆ITHVoltage=1.2Vto2V l –0.01 –0.1 % gm1,2 TransconductanceAmplifiergm (Note4)ITH1,2=1.2V,Sink/Source=5µA 2 mmho IQ InputDCSupplyCurrent (Note5) Pulse-SkippingorForcedContinuous Mode(OneChannelOn) RUN1=5VandRUN2=0Vor RUN1=0VandRUN2=5V, VFB1=0.83V(NoLoad) 2 mA Pulse-SkippingorForcedContinuous Mode(BothChannelsOn) RUN1,2=5V,VFB1,2=0.83V(NoLoad) 2 mA SleepMode(OneChannelOn) RUN1=5VandRUN2=0Vor RUN1=0VandRUN2=5V, VFB1=0.83V(NoLoad) 50 75 µA SleepMode(BothChannelsOn) RUN1,2=5V,VFB1,2=0.83V(NoLoad) 65 120 µA Shutdown RUN1,2=0V 8 20 µA UVLO UndervoltageLockout INTVCCRampingUp INTVCCRampingDown l l 3.6 4.0 3.8 4.2 4 V V VOVL FeedbackOvervoltageProtection MeasuredatVFB1,2,RelativetoRegulatedVFB1,2 7 10 13 % ISENSE+ SENSE+PinCurrent EachChannel ±1 µA ISENSE– SENSE–PinsCurrent EachChannel VSENSE–<INTVCC–0.5V VSENSE–>INTVCC+0.5V 550 ±1 700 µA µA DFMAX MaximumDutyFactor InDropout,FREQ=0V 98 99.4 % ITRACK/SS1,2 Soft-StartChargeCurrent VTRACK1,2=0V 0.7 1.0 1.4 µA VRUN1,2On RUNPinOnThreshold VRUN1,VRUN2Rising l 1.21 1.26 1.31 V VRUN1,2Hyst RUNPinHysteresis 50 mV VSENSE(MAX) MaximumCurrentSenseThreshold VFB1,2=0.7V,VSENSE1–,2–=3.3V l 43 50 57 mV Gate Driver TG1,2 Pull-UpOn-Resistance Pull-DownOn-Resistance 2.5 1.5 Ω Ω BG1,2 Pull-UpOn-Resistance Pull-DownOn-Resistance 2.4 1.1 Ω Ω TG1,2tr TG1,2tf TGTransistionTime: RiseTime FallTime (Note6) CLOAD=3300pF CLOAD=3300pF 25 16 ns ns BG1,2tr BG1,2tf BGTransistionTime: RiseTime FallTime (Note6) CLOAD=3300pF CLOAD=3300pF 28 13 ns ns elecTrical characTerisTics The l denotes the specifications which apply over the full operating junction temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, VRUN1,2 = 5V, EXTVCC = 0V unless otherwise noted. |
Similar Part No. - LTC3857IGN-1TRPBF |
|
Similar Description - LTC3857IGN-1TRPBF |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | 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 |