MFG:Texas Instruments Category:Integrated Circuits (ICs) Package Cooled:SOP-8 D/C:09+
UC2843AQDR, UC2843AQG3, UC2843B Datasheet download
Category: Integrated Circuits (ICs)
MFG: Texas Instruments
Package Cooled: SOP-8
D/C: 09+
Description: UC2843AQG3
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PDF/DataSheet Download
Datasheet: UC2000-30GM-IU-V1
File Size: 107528 KB
Manufacturer:
Download : Click here to Download
PDF/DataSheet Download
Datasheet: UC2000-30GM-IU-V1
File Size: 107528 KB
Manufacturer:
Download : Click here to Download
PDF/DataSheet Download
Datasheet: UC2843B
File Size: 138831 KB
Manufacturer: STMicro
Download : Click here to Download
| Technical/Catalog Information | UC2843AQDR |
| Vendor | Texas Instruments (VA) |
| Category | Integrated Circuits (ICs) |
| PWM Type | Current Mode |
| Number of Outputs | 1 |
| Package / Case | 14-SOIC (3.9mm Width), 14-SOL |
| Packaging | Cut Tape (CT) |
| Duty Cycle | 100% |
| Voltage - Supply | 12 V ~ 30 V |
| Frequency-Max | 500kHz |
| Buck | No |
| Boost | Yes |
| Flyback | Yes |
| Inverting | No |
| Doubler | No |
| Divider | No |
| Cuk | No |
| Isolated | No |
| Drawing Number | 296; 4040047-3; D; 14 |
| Operating Temperature | -40°C ~ 125°C |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | UC2843AQDR UC2843AQDR 296 15201 1 ND 296152011ND 296-15201-1 |
| Technical/Catalog Information | UC2843AQG3 |
| Vendor | Texas Instruments |
| Category | Integrated Circuits (ICs) |
| PWM Type | Current Mode |
| Number of Outputs | 1 |
| Package / Case | * |
| Packaging | * |
| Duty Cycle | 100% |
| Voltage - Supply | 12 V ~ 30 V |
| Frequency-Max | 500kHz |
| Buck | No |
| Boost | Yes |
| Flyback | No |
| Inverting | No |
| Doubler | No |
| Divider | No |
| Cuk | No |
| Isolated | No |
| Drawing Number | * |
| Operating Temperature | -40°C ~ 125°C |
| Lead Free Status | Lead Free |
| RoHS Status | RoHS Compliant |
| Other Names | UC2843AQG3 UC2843AQG3 |
TheUC384xBfamilyofcontrolICsprovidesthenecessaryfeaturesto implement off-line or DC to DC fixedfrequencycurrent modecontrolschemeswith a minimal external parts count. Internally implementedcircuitsinclude a trimmed oscilla -torforpreciseDUTYCYCLECONTROLundervoltagelockoutfeaturingstart-upcurrentlessthan0.5mA,aprecision reference trimmed for accuracyat the error ampinput,logictoinsurelatchedoperation,aPWM comparator which alsop rovide scurrentlimitcontrol, and a totempoleoutputstage designedto source or sinkhigh peakcurrent. The output stage, suitable for driving N-Channel MOSFETs, is low in the offstate.
Differencesbetweenmembersofthisfamilyarethe under-voltagelockoutthresholdsandmaximumduty cycle ranges. The UC3842B and UC3844B have UVLO thresholds of 16V (on) and 10V (off), ideally suitedoff lineapplications The correspondingth resh- oldsfortheUC3843BandUC3845Bare8.5Vand7.9 V.TheUC3842BandUC3843Bcanoperatetoduty
cyclesapproaching100%.Arangeofthezeroto < 50%isobtainedbytheUC3844BandUC3845Bby thea ddition of anintern altoggleflipflopwhichblanks theoutputoffeveryotherclockcycle.
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