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UCC3913 Datasheet(PDF) 3 Page - Texas Instruments |
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UCC3913 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 21 page UCC2913 UCC3913 SLUS274A – JANUARY 1999 – REVISED APRIL 2003 3 www.ti.com ELECTRICAL CHARACTERISTICS TA = –40°C to 85°C for UCC2913, TA = 0°C to 70°C for UCC3913, TJ = TA, IVDD = 2 mA, CT = 4.7 pF, TA = TJ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT SUPPLY Minimum input current, VDD 1 2 mA Regulator voltage 2 mA ≤ ISOURCE ≤ 10 mA 8.5 9.5 10.5 V Undervoltage lockout off-voltage 6 7 8 V FAULT TIMING Overcurrent threshold voltage TJ = 25 °C 47.5 50.0 53.0 mV Overcurrent threshold voltage Over temperature 46.0 50.0 53.5 mV Overcurrent input bias 50 500 nA VCT = 1.0 V, IPL = 0 A –22 –36 –50 µA Timing capacitance charge current Overload condition, VSENSE – VIMAX = 300 mV –0.7 –1.2 –1.7 mA Timing capacitance discharge current VCT = 1.0 V, IPL = 0 A 0.6 1.0 1.5 µA Timing capacitance fault threshold voltage 2.2 2.4 2.6 V Timing capacitance reset threshold voltage 0.32 0.50 0.62 V Output duty cycle Fault condition, IPL = 0 A 1.7% 2.7% 3.7% OUTPUT High le el o tp t oltage IOUT = 0 A 8.5 10 High-level output voltage IOUT = –1 A 6 8 Low level output voltage IOUT = 0 A, VSENSE – VIMAX = 100mV 0.01 V Low-level output voltage IOUT = 2 A, VSENSE – VIMAX = 100mV 0.2 0.6 LINEAR AMPLIFIER Sense control voltage VIMAX = 100 mV 85 100 115 mV Sense control voltage VIMAX = 400 mV 370 400 430 mV Input bias 50 500 nA SHUTDOWN/FAULT Shutdown threshold voltage 1.4 1.7 2.0 V Input current VSD/FLT = 5 V 15 25 45 µA High-level output voltage 6.0 7.5 9.0 V Low-level output voltage 0.01 V Delay-to-output time 150 300 ns POWER LIMITING PL regulator voltage IPL = 64 µA 4.35 4.85 5.35 V Duty cycle control IPL = 64 µA 0.6% 1.2% 1.7% Duty cycle control IPL = 1 mA 0.045% 0.1% 0.17% OVERLOAD Delay-to-output time 300 500 ns Output sink current VSENSE – VIMAX = 300mV 40 100 mA Overload threshold voltage Relataive to IIMAX 140 200 260 mV |
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