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LX1554 Datasheet(PDF) 6 Page - Microsemi Corporation |
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LX1554 Datasheet(HTML) 6 Page - Microsemi Corporation |
6 / 18 page ULTRA-LOW START-UP CURRENT, CURRENT-MODE PWM LX1552/3/4/5 PRODUCT D A T ABOOK 1996/1997 Copyright © 1994 Rev. 1.0a 1/01 6 P RODUCTIO N D ATA S HEET CHARACTERISTIC CU R VES FIGURE 2. — MAXIMUM DUTY CYCLE vs. TIMING RESISTOR FIGURE 3. — OSCILLATOR DISCHARGE CURRENT vs. TEMPERATURE FIGURE 4. — OSCILLATOR FREQUENCY vs. TEMPERATURE FIGURE 1. — OSCILLATOR FREQUENCY vs. TIMING RESISTOR 0.1 0 40 (R T) Timing Resistor - (k ) 100 20 50 80 1 10 100 10 60 70 90 30 V CC = 15V T A = 25°C 100 0.1 0.1 1 1000 (R T) Timing Resistor - (k ) 100 10 1 10 V CC = 15V T A = 25°C C T = 3.3nF C T = 1nF C T = 6.8nF C T = 22nF C T = 47nF C T = 0.1µF 7.70 8.10 (T A) Ambient Temperature - (°C) 7.90 8.20 7.80 8.30 8.40 8.00 -75 -50 -25 0 25 50 75 100 125 8.50 V CC = 15V V PIN4 = 2V 45 49 (T A) Ambient Temperature - (°C) 47 50 46 51 52 48 -75 -50 -25 0 25 50 75 100 125 53 V CC = 15V R T = 10k C T = 3.3nF 54 55 |
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