UC3843BD1R2 ON Semiconductor, UC3843BD1R2 Datasheet
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UC3843BD1R2
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UC3843BD1R2 Summary of contents
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UC3842B, UC3843B, UC2842B, UC2843B High Performance Current Mode Controllers 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 ...
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MAXIMUM RATINGS Rating Bias and Driver Voltages (Zero Series Impedance, see also Total Device spec) Total Power Supply and Zener Current Output Current, Source or Sink Output Energy (Capacitive Load per Cycle) Current Sense and Voltage Feedback Inputs Error Amp ...
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ELECTRICAL CHARACTERISTICS T is the operating ambient temperature range that applies [Note 4], unless otherwise noted.) A Characteristics REFERENCE SECTION Reference Output Voltage (I = 1.0 mA Line Regulation ( Load ...
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ELECTRICAL CHARACTERISTICS T is the operating ambient temperature range that applies [Note 8], unless otherwise noted.) A Characteristics OUTPUT SECTION Output Voltage Low State ( mA) Sink (I = 200 mA) Sink High State ( mA) ...
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2 25° 100 k 200 OSCILLATOR FREQUENCY (kHz) OSC 1 Freq + Vosc Vosc ...
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Gain 100 1 100 k f, FREQUENCY (Hz) Figure 8. Error Amp Open Loop Gain and Phase versus Frequency 0 - 4.0 - 8.0 -12 Ä Ä Ä ...
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Source Saturation V Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä Ä CC (Load to Ground) -1 25°C A Ä Ä Ä Ä - 2.0 Ä Ä Ä Ä ...
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The UC3842B, UC3843B series are high performance, fixed frequency, current mode controllers. They are specifically designed for Off−Line and DC−to−DC converter applications offering the designer a cost−effective solution with minimal external representative block diagram is shown in Figure 18. Oscillator ...
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V ref 8(14 Voltage Feedback Input 2(3) Error Amplifier Output/ Compensation 1(1) Pin numbers adjacent to terminals are for the 8-pin dual-in-line package. Pin numbers in parenthesis are for the D suffix ...
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Undervoltage Lockout Two undervoltage lockout comparators have been incorporated to guarantee that the IC is fully functional before the output stage is enabled. The positive power supply terminal (V ) and the reference output (V CC each monitored by separate ...
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DI Control Voltage Inductor Current Oscillator Period (B) Control Voltage ...
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R Bias Osc 4(7) + 1.0mA 2( 1.0V EA 1.0M 1(1) C 5(9) ≈ 3600C Soft-Start Figure 24. Soft−Start Circuit V CC (12) 5.0V Ref + - D (11 ...
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Ref + - Comp/Latch Series gate resistor R will damp any high frequency parasitic oscillations g caused by the MOSFET input capacitance and any series wiring inductance in the gate-source circuit. Figure 28. MOSFET Parasitic ...
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From Error Amp compensation circuit for stabilizing any current mode topology except for boost and flyback converters operating with continuous inductor current. From Error Amp compensation ...
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W 4.7 MDA 202 115 Vac 0.01 8(14) R Bias 10k R Osc 4(7) 4700pF + 18k 2(3) EA 100 150k pF 4.7k 1(1) Figure 34 Off−Line Flyback Regulator Test Conditions Line Regulation: 5 ...
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ORDERING INFORMATION Device UC2842BDG UC2842BD1G UC2842BD1R2G UC2842BNG UC3842BNG UC3842BDG UC3842BDR2G UC3842BD1G UC3842BD1R2G UC3842BVDR2G UC3842BVD1G UC3842BVD1R2G UC2843BDG UC2843BDR2G UC2843BD1G UC2843BD1R2G UC2843BNG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel ...
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... ORDERING INFORMATION Device UC3843BDG UC3843BDR2G UC3843BD1G UC3843BD1R2G UC3843BDR2G UC3843BNG UC3843BVDG UC3843BVDR2G UC3843BVD1G UC3843BVD1R2G UC3843BVNG †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Operating Temperature Range T = 0° to +70°C ...
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MARKING DIAGRAMS PDIP−8 N SUFFIX CASE 626 8 8 UC384xBN UC3843BVN AWL YYWWG YYWWG 1 1 SOIC−14 D SUFFIX CASE 751A 14 14 UC384xBDG UC384xBVDG AWLYWW AWLYWW 1 1 SOIC−8 D1 SUFFIX CASE 751 8 8 384xB 384xB ALYW ALYWV ...
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F −A− NOTE 2 C −T− N SEATING PLANE 0.13 (0.005) M PACKAGE DIMENSIONS PDIP−8 N SUFFIX CASE 626−05 ISSUE http://onsemi.com 19 ...
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... G C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−8 D1 SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT* 1 ...
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... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...