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UC1525B-SP Scheda tecnica(PDF) 4 Page - Texas Instruments |
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UC1525B-SP Scheda tecnica(HTML) 4 Page - Texas Instruments |
4 / 13 page CONNECTION DIAGRAM LCC-20, PLCC-20 (Top View) FK Package ELECTRICAL CHARACTERISTICS UC1525B-SP SLUS874 – JANUARY 2009............................................................................................................................................................................................... www.ti.com VIN = 20 V, TA = TJ = –55°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Reference Section Output voltage TJ = 25°C 5.062 5.10 5.138 V Line regulation VIN = 8 V to 35 V 5 10 mV Load regulation IL = 0 mA to 20 mA 7 15 mV Temperature stability(1) Over operating range 10 50 mV Total output variation Over line, load, and temperature 5.036 5.164 V Short-circuit current VREF = 0 V, TJ = 25°C 80 100 mA Output noise voltage(1) 10 Hz ≤ f ≤ 10 kHz, TJ = 25°C 40 200 µVrms Oscillator Section Initial accuracy(2) TJ = 25°C ±2 ±6 % Voltage stability(2) VIN = 8 V to 35 V ±0.3 ±1 % Temperature stability(1)(2) Over operating range ±3 ±6 % Minimum frequency RT = 200 kΩ, CT = 0.1 µF 120 Hz Maximum frequency RT = 2 kΩ, CT = 470 pF 400 kHz Current mirror IRT = 2 mA 1.7 2. 2.2 mA Clock amplitude(2) 3 3.5 V Clock width(2) TJ = 25°C 0.3 0.5 1 µs Sync threshold 1.2 2 2.8 V Sync input current Sync = 3.5 V 1 2.5 mA (1) Parameters ensured by design and/or characterization, if not production tested. (2) Tested at fosc = 40 kHz (RT = 3.6 kΩ, CT = 0.01 µF, RD = 0 Ω). Approximate oscillator frequency is defined by: f = 1/(CT (0.7 x RT + 3RD)). 4 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): UC1525B-SP |
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