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UC3823 Datasheet(PDF) 2 Page - Texas Instruments |
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UC3823 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 7 page UC1823 UC2823 UC3823 CONNECTION DIAGRAMS ELECTRICAL CHARACTERISTICS: PARAMETER TEST CONDITIONS UC1823 UC2823 UC3823 UNITS MIN TYP MAX MIN TYP MAX Reference Section Output Voltage TJ = 25°C, lO = 1mA 5.05 5.10 5.15 5.00 5.10 5.20 V Line Regulation 10 < VCC < 30V 2 20 2 20 mV Load Regulation 1 < IO < 10mA 5 20 5 20 mV Temperature Stability* TMIN < TA < TMAX 0.2 0.4 0.2 0.4 mV/°C Total Output Variation* Line, Load, Temp. 5.00 5.20 4.95 5.25 Output Noise Voltage* 10Hz < f < 10kHz 50 50 µV Long Term Stability* TJ = 125°C, 1000 hrs. 5 25 5 25 mV Short Circuit Current VREF=0V -15 -50 -100 -15 -50 -100 mA Oscillator Section Initial Accuracy* TJ=25°C 360 400 440 360 400 440 kHz Voltage Stability* 10 < VCC < 30V 0.2 2 0.2 2 % Temperature Stability* TMIN <TA < TMAX 55 % Total Variation* Line, Temp. 340 460 340 460 kHz Clock Out High 3.9 4.5 3.9 4.5 V Clock Out Low 2.3 2.9 2.3 2.9 V Ramp Peak* 2.6 2.8 3.0 2.6 2.8 3.0 V Ramp Valley* 0.7 1.0 1.25 0.7 1.0 1.25 V Ramp Valley to Peak* 1.6 1.8 2.0 1.6 1.8 2.0 V * These parameters are guaranteed by design but not 100% tested in production. DIL-16, SOIC-16 (TOP VIEW) J or N, DW Package PLCC-20, LCC-20 (TOP VIEW) Q, L Package PACKAGE PIN FUNCTION FUNCTION PIN N/C 1 Inv. 2 N.I. 3 E/A Out 4 Clock 5 N/C 6 RT 7 CT 8 Ramp 9 Soft start 10 N/C 11 ILIM/S.D. 12 Ground 13 ILIM REF 14 PWR Gnd 15 N/C 16 VC 17 OUT 18 VCC 19 VREF 5.1V 20 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. 2 |
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