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UC1572 Scheda tecnica(PDF) 3 Page - Texas Instruments |
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UC1572 Scheda tecnica(HTML) 3 Page - Texas Instruments |
3 / 9 page 3 UC1572 UC2572 UC3572 ELECTRICAL CHARACTERISTICS: Unless otherwise specified, VCC = 5V, CT = 680pF, TA =TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Gate Drive Output Section OUT High Saturation IOUT = 0 0 0.3 V IOUT = –10mA 0.7 1.5 V IOUT = –100mA 1.5 2.5 V OUT Low Saturation IOUT = 10mA 0.1 0.4 V IOUT = 100mA 1.5 2.2 V Rise Time TJ = 25°C, CLOAD = 1nF + 3.3 Ohms 30 80 nS Fall Time TJ = 25°C, CLOAD = 1nF + 3.3 Ohms 30 80 nS Pulse Width Modulator Section Maximum Duty Cycle EAINV = +100mV, VCC = 5V to 30V 92 96 % Minimum Duty Cycle EAINV = –100mV, VCC = 5V to 30V 0 % Modulator Gain EAOUT = 1.5V to 2.5V 45 55 65 %/V Undervoltage Lockout Section Start Threshold 3.5 4.2 4.5 V Hysteresis 100 200 300 mV Sleep Mode Section Threshold 1.8 2.2 2.6 V Supply Current Section IVCC VCC = 5V, 30V 9 15 mA VCC = 30, CS = 3V 50 150 A Figure 1. Typical waveforms. UDG-94095 |
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