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FAN5019 Datasheet(PDF) 9 Page - Fairchild Semiconductor |
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FAN5019 Datasheet(HTML) 9 Page - Fairchild Semiconductor |
9 / 30 page PRODUCT SPECIFICATION FAN5019 REV. 1.0.7 1/5/04 9 Typical Characteristics Test Circuits TPC 1. Master Clock Frequency TPC 2. Supply Current vs. Master Clock Frequency 3.5 4 3 2.5 2 1.5 1 0.5 0 100 0 200 RESISTOR’S RT VALUE (k Ω) 300 400 5.2 5.3 5.1 5.0 4.9 4.8 4.7 4.6 1.0 0 2.0 MASTER CLOCK FREQUENCY (MHz) 3.0 4.0 0.5 1.5 2.5 3.5 TA = 25°C 4-Phase Operation VCC 28 18 19 17 16 CSREF CSSUM CSCOMP GND CSA 100nF 39k Ω 1k Ω 1V +12V 40 CSCOMP–1V VOS = Test Circuit 1. Current Sense Amplifier VOS VCC 28 18 19 17 16 CSREF CSSUM CSCOMP GND CSA 100nF 200k Ω 1V +12V 9 8 10k Ω FB COMP 200k Ω 80mV VID FB V FB V − = ∆ Test Circuit 2. Voltage Positioning VID4 VID0 VID1 VID2 VID3 VID5 FAN5019 VCC 1VID4 8 11 10 9 12 14 13 6 5 4 7 3 2 28 21 18 19 20 17 15 16 23 24 25 22 26 27 RAMPADJ RT DELAY EN PWRGD COMP FB FBRTN VID5 VID0 VID1 VID2 VID3 ILIMIT CSREF CSSUM CSCOMP GND SW4 SW3 SW2 SW1 PWM4 PWM3 PWM2 PWM1 250k Ω 100nF 4.7nF 250k Ω 20k Ω 1 µF 100nF +12V 1k Ω Test Circuit 3. Closed Loop Output Voltage Accuracy |
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Descripción similar - FAN5019 |
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