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HA16141P Datasheet(PDF) 4 Page - Renesas Technology Corp |
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HA16141P Datasheet(HTML) 4 Page - Renesas Technology Corp |
4 / 18 page HA16141P/FP, HA16142P/FP Rev.5.00 Jun 15, 2005 page 4 of 17 System Diagram CAO VCC CT 3.3n 36k VREF Rec+ 1.8m Q1 B+ B+ OUT GND (385V dc) T1 + Rec − PWM-RES PFC-DT +B HIGH RAMP 22.2V 100 220p IAC IMO IAC IMO = K {IAC × (VEO − 1V)} PFC-CAMP PFC-VAMP PWM-VAMP ×1 Gain Selector Over Current Detector Integrator Latch Block 910k K VEO 2.7k 0.1 (5W) TIM PG PFC -CS PFC -EO 47n 750k PFC -FB PFC -ON GND Note: The constants for the external components are for reference. Please confirm the operation when designing the system. 4.7n From VRB(B+monitor) 55k −0.5V VREF PFC-CLIMIT − + − + + − + − + +B LOW PFC-OFF PWM-OFF Circuit Ground Level 2.5V 2.75V 2.60V 2.5V RB 3.83V 3.63V R Q Supervisor K = 0.25 S R PWM-RES Q S R Q S H UVLO L H VREF GOOD VREF GOOD VREF GOOD Gate Driver ±1.5A(PEAK) Gate Driver ±1A(PEAK) UVL L 5V VREF Generator 5V Internal Bias − + − + − K = 0.05 LOGIC 2.34V 1.70V + − 1.5V 1.2V 0.1 µ 51k 5.1k VREF Enable to secondary 33k 720k 2.2 µ + − 1V 0.3V 5V 4V VCC LOGIC 2.5V + − + − PWM -CS 2R R 5RB VCC 0.1 (1W) 1 (1W) To T1 To Q1 gate From PFC-OUT From Q2 drain To PFC-FB Current Monitor Unit R: Ω C: F + − + − 7.1V 0.1 µ 38.2 µ 3V 26.2 µ 5.2 µ Q S R Q R S + − − + O.C VREF PWM -EO PWM -OUT PFC -OUT 1n 0.1 µ 0.47 µ 470 µ (600V) 1n 51k + 4.7 µ 570k (1/2W) 710k VRB 4.7k 100kHz 3.4V 0.65V 200kHz Oscillator 500ns 10 µs 5 µs 1 µs (HA16141) 2.3 µs (HA16142) 820k 10n HA16141 only External parts of PWM-EO pin are applies to HA16141 only. |
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