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UC3823 датащи(PDF) 3 Page - Texas Instruments |
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UC3823 датащи(HTML) 3 Page - Texas Instruments |
3 / 7 page PARAMETER TEST CONDITIONS UC1823 UC2823 UC3823 UNITS MIN TYP MAX MIN TYP MAX Error Amplifier Section Input Offset Voltage 10 15 mV Input Bias Current 0.6 3 0.6 3 µA Input Offset Current 0.1 1 0.1 1 µA Open Loop Gain 1 < VO < 4V 60 95 60 95 dB CMRR 1.5 < VCM < 5.5V 75 95 75 95 dB PSRR 10 < VCC < 30V 85 110 85 110 dB Output Sink Current VPIN 3 =1V 1 2.5 1 2.5 mA Output Source Current VPIN 3 = 4V -0.5 -1.3 -0.5 -1.3 mA Output High Voltage IPIN 3 = −0.5mA 4.0 4.7 5.0 4.0 4.7 5.0 V Output Low Voltage IPIN 3 = 1mA 0 0.5 1.0 0 0.5 1.0 V Unity Gain Bandwidth* 3 5.5 3 5.5 MHz Slew Rate* 6 12 6 12 V/ µS PWM Comparator Section Pin 7 Bias Current VPIN 7 = 0V -1 -5 -1 -5 µA Duty Cycle Range 0 80 0 85 % Pin 3 Zero D.C. Threshold VPIN 7 = 0V 1.1 1.25 1.1 1.25 V Delay to Output* 50 80 50 80 ns Soft-Start Section Charge Current VPIN 8 = 0.5V 3 9 20 3 9 20 µA Discharge Current VPIN 8 = 1V 1 1 mA Current Limit/Shutdown Section Pin 9 Bias Current 0 < VPIN 9 < 4V ±10 ±10 µA Current Limit Offset VPIN 11 = 1.1V 15 15 mV Current Limit Common Mode Range (VPIN 11) 1.0 1.25 1.0 1.25 V Shutdown Threshold 1.25 1.40 1.55 1.25 1.40 1.55 V Delay to Output* 50 80 50 80 ns Output Section Output Low Level IOUT = 20mA 0.25 0.40 0.25 0.40 V IOUT = 200mA 1.2 2.2 1.2 2.2 V Output High Level IOUT = −20mA 13.0 13.5 13.0 13.5 V IOUT = −200mA 12.0 13.0 12.0 13.0 V Collector Leakage VC = 30V 100 500 100 500 µA Rise/Fall Time* CL = 1nF 3060 3060 ns Under-Voltage Lockout Section Start Threshold 8.8 9.2 9.6 8.8 9.2 9.6 V UVLO Hysteresis 0.4 0.8 1.2 0.4 0.8 1.2 V Supply Current Start Up Current VCC = 8V 1.1 2.5 1.1 2.5 mA ICC VPIN 1, VPIN 7, VPIN 9 =0V, VPIN 2 = 1V 22 33 22 33 mA * These parameters are guaranteed by design but not 100% tested in production. UC1823 UC2823 UC3823 ELECTRICAL CHARACTERISTICS: Unless otherwise noted, these specifications apply for RT = 3.65k, CT = 1nF, VCC = 15V, 0°C < TA < +70°C for the UC3823, -25°C < TA < +85°C for the UC2823, and -55°C < TA < +125°C for the UC1823, TA = TJ. 3 |
Аналогичный номер детали - UC3823 |
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Аналогичное описание - UC3823 |
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