전자부품 데이터시트 검색엔진 |
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UC2842BN 데이터시트(PDF) 11 Page - Motorola, Inc |
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UC2842BN 데이터시트(HTML) 11 Page - Motorola, Inc |
11 / 16 page UC3842B, 43B UC2842B, 43B 11 MOTOROLA ANALOG IC DEVICE DATA Figure 20. External Clock Synchronization Figure 21. External Duty Cycle Clamp and Multi–Unit Synchronization Figure 22. Adjustable Reduction of Clamp Level Figure 23. Soft–Start Circuit 2(3) EA Bias + Osc R R R 2R 5(9) 1(1) 4(7) 8(14) RT CT Vref 0.01 The diode clamp is required if the Sync amplitude is large enough to cause the bottom side of CT to go more than 300 mV below ground. External Sync Input 47 + R R R 2R Bias Osc EA 5(9) 1(1) 2(3) 4(7) 8(14) To Additional UCX84XBs R S Q 8 4 6 5 2 1 C 3 7 RA RB 5.0k 5.0k 5.0k MC1455 f + 1.44 (RA ) 2RB)C D(max) + RB RA ) 2RB + – 5.0V Ref + – S R Q Bias + Osc R R R 2R EA 1.0V 5(9) 7(11) 6(10) 5(8) 3(5) RS Q1 VCC Vin 1(1) 2(3) 4(7) 8(14) R1 VClamp R2 5.0V Ref + – S R Q Bias + 1.0mA Osc R R R 2R EA 1.0V 5(9) 1(1) 2(3) 4(7) 8(14) C 1.0M tSoft–Start ≈ 3600C in µF 7(12) Comp/Latch 1.0 mA Ipk(max) [ VClamp RS Where: 0 ≤ VClamp ≤ 1.0 V VClamp ≈ 1.67 R2 R1 ) 1 + 0.33x10–3 R1R2 R1 ) R2 |
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유사한 설명 - UC2842BN |
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