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FAN53168MTC Fiches technique(PDF) 8 Page - Fairchild Semiconductor |
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FAN53168MTC Fiches technique(HTML) 8 Page - Fairchild Semiconductor |
8 / 28 page FAN53168 PRODUCT SPECIFICATION 8 REV. 1.0.0 6/9/03 Typical Characteristics TPC 1. Master Clock Frequency TPC 2. Supply Current vs. Master Clock Frequency 4 0 50 100 150 RT VALUE – k Ω SEE EQUATION 1 FOR FREQUENCIES NOT ON THIS GRAPH 200 250 300 3 2 1 0 5.3 0 0.5 1.0 1.5 MASTER CLOCK FREQUENCY – MHz 2.0 2.5 3.0 3.5 4.0 5.0 5.1 5.2 4.8 4.9 4.7 4.6 TA = 25 °C 4-PHASE OPERATION Test Circuits Test Circuit 1 – Current Sense Amplifier VOS Test Circuit 2 – Output Voltage Positioning Test Circuit 3 – Closed Loop Output Voltage Accuracy VCC 28 18 19 17 16 CSREF CSSUM CSCOMP GND CSA 100nF 39k Ω 1k Ω 1V +12V 40 1V CSCOMP – V OS = VCC 28 18 19 17 16 CSREF CSSUM CSCOMP GND CSA 100nF 200k Ω 1V +12V 9 8 10k Ω FB COMP 200k Ω ∆V mV V mV V FB – FB FB V 0 80 = ∆ = ∆ = ∆ VID4 VID0 VID1 VID2 VID3 VID5 FAN53168 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 1.25V |
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