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UCC280X Datasheet(PDF) 8 Page - Texas Instruments |
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UCC280X Datasheet(HTML) 8 Page - Texas Instruments |
8 / 55 page 8 UCC1800, UCC1801, UCC1802, UCC1803, UCC1804, UCC1805 UCC2800, UCC2801, UCC2802, UCC2803, UCC2804, UCC2805 UCC3800, UCC3801, UCC3802, UCC3803, UCC3804, UCC3805 SLUS270E – MARCH 1999 – REVISED JUNE 2016 www.ti.com 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 Electrical Characteristics (continued) –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 (5) Gain is defined by: A = ΔVCOMP / Δ VCS. 0 ≤ VCS ≤ 0.8 V (6) Parameter measured at trip point of latch with Pin 2 at 0 V. (7) Start threshold, stop threshold, and Zener shunt thresholds track one another. (8) The device is fully operating in clamp mode, as the forcing current is higher than the normal operating supply current. PWM Maximum duty cycle UCCx800, UCCx802, and UCCx803 97% 99% 100% UCCx801, UCCx804, and UCCx805 48% 49% 50% CURRENT SENSE Gain(5) 1.1 1.65 1.8 V/V Maximum input signal COMP = 5 V(6) 0.9 1 1.1 V Input bias current –200 200 nA CS blank time 50 100 150 ns Overcurrent threshold 1.42 1.55 1.68 V COMP to CS offset CS = 0 V 0.45 0.9 1.35 V OUTPUT OUT low level I = 20 mA, all parts 0.1 0.4 V I = 200 mA, all parts 0.35 0.9 I = 50 mA, VCC = 5 V, UCCx803 and UCCx805 0.15 0.4 I = 20 mA, VCC = 0 V, all parts 0.7 1.2 OUT high VSAT (VCC-OUT) I = 20 mA, all parts 0.15 0.4 V I = 200 mA, all parts 1 1.9 I = 50 mA, VCC = 5 V, UCCx803 and UCCx805 0.4 0.9 Rise time CL = 1 nF 41 70 ns Fall time CL = 1 nF 44 75 ns UNDERVOLTAGE LOCKOUT Start threshold(7) UCCx800 6.6 7.2 7.8 V UCCx801 8.6 9.4 10.2 UCCx802 and UCCx804 11.5 12.5 13.5 UCCx803 and UCCx805 3.7 4.1 4.5 Stop threshold(7) UCCx1800 6.3 6.9 7.5 V UCCx1801 6.8 7.4 8 UCCx802 and UCCx804 7.6 8.3 9 UCCx803 and UCCx805 3.2 3.6 4 Start to stop hysteresis UCCx800 0.12 0.3 0.48 V UCCx801 1.6 2 2.4 UCCx802 and UCCx804 3.5 4.2 5.1 UCCx803 and UCCx805 0.2 0.5 0.8 SOFT START COMP rise time FB = 1.8 V, rise from 0.5 V to REF – 1 V 4 10 ms OVERALL Start-up current VCC < start threshold 0.1 0.2 mA Operating supply current FB = 0 V, CS = 0 V 0.5 1 mA VCC internal Zener voltage ICC = 10 mA (7) (8) 12 13.5 15 V VCC internal Zener voltage minus start threshold voltage UCCx802 and UCCx804(7) 0.5 1 V |
Similar Part No. - UCC280X |
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Similar Description - UCC280X |
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