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UCC28521 Datasheet(PDF) 4 Page - Texas Instruments |
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UCC28521 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 34 page UCC28521, UCC28528 SLUS608D − JANUARY 2005 REVISED NOVEMBER 2005 4 www.ti.com ELECTRICAL CHARACTERISTICS TA = –40°C to 105°C for the UCC2851x, TA = TJ, VCC = 12 V, RT = 156 kΩ, RCT_BUFF = 10 kΩ (unless otherwise noted) supply current PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Supply current, off VCC turn-on threshold −300 mV 100 150 µA Supply current, on no load on GT1 or GT2 4 6 mA undervoltage lockout (UVLO) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS VCC turn-on threshold UCC28521 9.7 10.2 10.8 VCC turn-off threshold UCC28521 9.1 9.7 10.6 V UVLO hysteresis UCC28521 0.3 0.5 0.8 V voltage amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input voltage 25 °C 7.39 7.50 7.61 V Input voltage Over temperature 7.35 7.50 7.65 V VSENSE bias current VSENSE = VREF 100 300 nA Open loop gain 2 V ≤ VAOUT ≤ 4 V 50 60 dB High-level output voltage ILOAD = –150 µA 5.3 5.5 5.6 V Low-level output voltage ILOAD = 150 µA 0.00 0.05 0.15 V gM conductance IVAOUT = −20 µA to 20 µA 70 100 130 µS Maximum source current −1 −3.5 mA Maximum sink current 1 3.5 mA PFC stage overvoltage protection and enable PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Overvoltage reference window VREF + 0.440 VREF + 0.490 VREF + 0.540 V Hysteresis 300 500 600 mV Enable threshold 1.7 1.9 2.1 V Enable hysteresis 0.08 0.2 0.3 V |
Similar Part No. - UCC28521_16 |
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Similar Description - UCC28521_16 |
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