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UCC28063ADR Datasheet(PDF) 8 Page - Texas Instruments |
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UCC28063ADR Datasheet(HTML) 8 Page - Texas Instruments |
8 / 46 page UCC28063A SNVSA88B – DECEMBER 2014 – REVISED MARCH 2015 www.ti.com Electrical Characteristics (continued) At VCC = 16 V, AGND = PGND = 0 V, VINAC = 3 V, VSENSE = 6 V, HVSEN = 3 V, PHB = 5 V, RTSET = 133 kΩ, all voltages are with respect to GND, all outputs unloaded, −40 °C < TJ = TA < 125 °C, and currents are positive into and negative out of the specified terminal, unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT CS current-limit response From CS exceeding threshold −0.05 V to 60 100 time(2) GDx dropping 10% ns CS blanking time From GDx rising and falling edges 100 VINAC INPUT IVINAC VINAC input bias current, VINAC = 2 V ±0.03 ±0.5 µA above brownout VBODET VINAC brownout detection VINAC falling 1.33 1.39 1.44 V threshold tBODLY VINAC brownout filter time VINAC below the brownout detection 340 440 540 ms threshold for the brownout filter time VBOHYS VINAC brownout threshold VINAC rising 30 62 75 mV hysteresis IBOHYS VINAC brownout hysteresis VINAC = 1 V for > tBODLY 1.6 2 2.5 µA current VDODET VINAC dropout detection VINAC falling 0.315 0.35 0.38 V threshold tDODLY VINAC dropout filter time VINAC below the dropout detection 3.5 5 7 ms threshold for the dropout filter time VDOCLR VINAC dropout clear threshold VINAC rising 0.67 0.71 0.75 V PULSE-WIDTH MODULATOR KT On-time factor, phases A and B VSENSE = 5.8 V(4) 3.6 4.0 4.4 µs/V KTS On-time factor, single-phase, A VSENSE = 5.8 V, PHB = 0 V (4) 7.2 8.0 8.9 Phase B to phase A on-time VSENSE = 5.8 V ±2% ±6% matching error Zero-crossing distortion COMP = 0.25 V, VINAC = 1 V 1.2 2 2.8 µs correction additional on time COMP = 0.25 V, VINAC = 0.1 V 12.6 20 29 VPHBF PHB threshold falling, to single- To GDB output shutdown, VINAC = 1.5 V 0.7 0.8 0.9 phase operation V VPHBR PHB threshold rising, to two- To GDB output running, VINAC = 1.5 V 0.9 1 1.1 phase operation TMIN Minimum switching period RTSET = 133 kΩ (4) 1.7 2.2 3 µs TSTART PWM restart time ZCDA = ZCDB = 2 V(5) 165 210 265 THERMAL SHUTDOWN TJ Thermal shutdown temperature Temperature rising(6) 160 °C TJ Thermal restart temperature Temperature falling(6) 140 (4) Gate drive on-time is proportional to (VCOMP – 0.125 V). The on-time proportionality factor, KT, scales linearly with the value of RTSET and is different in two-phase and single-phase modes. The minimum switching period is proportional to RTSET. (5) An output on-time is generated at both GDA and GDB if both ZCDA and ZCDB negative-going edges are not detected for the restart time. In single-phase mode, the restart time applies for the ZCDA input and the GDA output. (6) Thermal shutdown occurs at temperatures higher than the normal operating range. Device performance above the normal operating temperature is not specified or assured. 8 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: UCC28063A |
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