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UCC3801PWTR Datasheet(PDF) 7 Page - Texas Instruments |
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UCC3801PWTR Datasheet(HTML) 7 Page - Texas Instruments |
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7 / 56 page  7 UCC1800, UCC1801, UCC1802, UCC1803, UCC1804, UCC1805 UCC2800, UCC2801, UCC2802, UCC2803, UCC2804, UCC2805 UCC3800, UCC3801, UCC3802, UCC3803, UCC3804, UCC3805 www.ti.com SLUS270E – MARCH 1999 – REVISED JUNE 2016 Product Folder Links: UCC1800 UCC1801 UCC1802 UCC1803 UCC1804 UCC1805 UCC2800 UCC2801 UCC2802 UCC2803 UCC2804 UCC2805 UCC3800 UCC3801 UCC3802 UCC3803 UCC3804 UCC3805 Submit Documentation Feedback Copyright © 1999–2016, Texas Instruments Incorporated (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 8.4 Thermal Information THERMAL METRIC(1) UCC180x, UCC280x, UCC380x UNIT PW (TSSOP) J (CDIP), D (SOIC) N (PDIP) L (LCC) 8 PINS 8 PINS 8 PINS 20 PINS RθJA Junction-to-ambient thermal resistance 153.8 107.5 50.9 — °C/W RθJC(top) Junction-to-case (top) thermal resistance 38.4 49.3 40.3 40.7 °C/W RθJB Junction-to-board thermal resistance 83.8 48.7 28.1 39.6 °C/W ψJT Junction-to-top characterization parameter 2.2 6.6 17.6 — °C/W ψJB Junction-to-board characterization parameter 82 48 28 — °C/W RθJC(bot) Junction-to-case (bottom) thermal resistance — — — 5.2 °C/W (1) Adjust VCC above the start threshold before setting at 10 V. (2) Total variation includes temperature stability and load regulation. (3) Ensured by design. Not 100% tested in production. (4) Oscillator frequency for the UCCx800, UCCx802, and UCCx803 is the output frequency. Oscillator frequency for the UCCx801, UCCx804, and UCCx805 is twice the output frequency. 8.5 Electrical Characteristics –55°C ≤ TA ≤ 125°C for UCC180x, –40°C ≤ TA ≤ 85°C for UCC280x, and 0°C ≤ TA ≤ 70°C for UCC380x. VCC = 10 V (1), RT = 100 k from REF to RC, CT = 330 pF from RC to GND, 0.1-pF capacitor from VCC to GND, 0.1-pF capacitor from VREF to GND, and TA= TJ (unless otherwise noted). PARAMETER TEST CONDITIONS MIN TYP MAX UNIT REFERENCE Output voltage TJ= 25°C, I = 0.2 mA, UCCx800, UCCx801, UCCx802, and UCCx804 4.925 5 5.075 V TJ= 25°C, I = 0.2 mA, UCCx803 and UCCx805 3.94 4 4.06 Load regulation 0.2 mA < I < 5 mA UCC180x and UCC280x 10 30 mV UCC380x 25 Line regulation TJ = 25°C, VCC = 10 V to clamp (IVCC = 25 mA) 1.9 mV/V TJ = –55°C to 125°C, VCC = 10 V to clamp (IVCC = 25 mA) UCC180x and UCC280x 2.5 UCC380x 2.1 Total variation UCCx800, UCCx801, UCCx802, and UCCx804(2) 4.88 5 5.1 V UCCx803 and UCCx805(2) 3.9 4 4.08 Output noise voltage 10 Hz ≤ f ≤ 10 kHz, TJ= 25°C (3) 130 µV Long term stability TA = 125°C, 1000 hours (3) 5 mV Output short circuit –5 –35 mA OSCILLATOR Oscillator frequency UCCx800, UCCx801, UCCx802, UCCx804(4) 40 46 52 kHz UCCx803 and UCCx805(4) 26 31 36 Temperature stability(3) 2.5% Amplitude peak-to-peak 2.25 2.4 2.55 V Oscillator peak voltage 2.45 V ERROR AMPLIFIER Input voltage COMP = 2.5 V, UCCx800, UCCx801, UCCx802, and UCCx804 2.44 2.5 2.56 V COMP = 2 V, UCCx803 and UCCx805 1.95 2 2.05 Input bias current –1 1 µA Open loop voltage gain 60 80 dB COMP sink current FB = 2.7 V, COMP = 1.1 V UCC180x and UCC280x 0.3 3.5 mA UCC380x 0.4 2.5 COMP source current FB = 1.8 V, COMP = REF – 1.2 V –0.2 –0.5 –0.8 mA Gain bandwidth product(3) 2 MHz |
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