UC3843BVD1R2G
SearchUC3843B Series 30 V 275 kHz High Performance Current Mode Controller - SOIC-8
Lifecycle: Active Supply Risk Score and Supply Risk Trend are available on Pro and Enterprise. Watchlist (Pro)
Datasheets:Datasheet (Future Electronics)
Country of origin: —RoHS Compliantother power controllers
Future Electronics
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12,500
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1of 1 suppliers
Shortest factory lead: 34 weeks
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Stock & Availability
| Supplier | Supplier Part Number | Stock | Delivery | Factory Lead | MOQ | Packaging | Status |
|---|---|---|---|---|---|---|---|
 | 12,500 | — | 34 weeks | Minimum order quantity 2,500Order multiple 2,500 | REEL | In Stock |
Supplier Part Details
Technical Attributes
ATS_ASIA0
ATS_EU12500
ATS_NA0
availableRegionNA:EU:Asia:China
cooCN
dateCode2609
eccnEAR99
hts_code8542.31.00.30
leadFreeY
ncnrFlagN
overview (en)<div id="ctl00_PlaceHolderMain_DisplayProductOverview_DisplayProductOverview_ConditionPnl_ctl00_ctl00__ControlWrapper_RichHtmlField"><strong>The UC3843B is a High Performance Current Mode Controllers.</strong><p>The UC3842B, UC3843B series are high performance fixed frequency current mode controllers. They are specifically designed for Off−Line and DC−DC converter applications offering the designer a cost−effective solution with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle−by−cycle current limiting, programmable output deadtime, and a latch for single pulse metering. These devices are available in an 8−pin dual−in−line and surface mount (SOIC−8) plastic package as well as the 14−pin plastic surface mount (SOIC−14). The SOIC−14 package has separate power and ground pins for the totem pole output stage. The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally suited for off−line converters. The UCX843B is tailored for lower voltage applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).</p><p><strong>Key Features:</strong></p><ul> <li>Trimmed Oscillator for Precise Frequency Control </li> <li>Oscillator Frequency Guaranteed at 250 kHz </li> <li>Current Mode Operation to 500 kHz </li> <li>Automatic Feed Forward Compensation </li> <li>Latching PWM for Cycle−By−Cycle Current Limiting </li> <li>Internally Trimmed Reference with Undervoltage Lockout </li> <li>High Current Totem Pole Output </li> <li>Undervoltage Lockout with Hysteresis </li> <li>Low Startup and Operating Current </li> <li>This is a Pb−Free and Halide−Free Device</li></ul></div>
PBO_ASIA0
PBO_EU30000
PBO_NA0
ship_to_rotaN/A
ship_to_usaN/A
tariffClassMM149
USATariff1