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UCC28503DWTR Datasheet(PDF) 3 Page - Texas Instruments |
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UCC28503DWTR Datasheet(HTML) 3 Page - Texas Instruments |
3 / 31 page UCC28500, UCC28501, UCC28502, UCC28503 UCC38500, UCC38501, UCC38502, UCC38503 SLUS419C − AUGUST 1999 − REVISED NOVEMBER 2001 3 www.ti.com electrical characteristics TA = 0°C to 70°C for the UCC3850X, –40°C to 85°C for the UCC2850X, TA = TJ, VCC = 12 V, RT = 22 kΩ, CT = 330 pF (unless otherwise noted) supply current PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Supply current, off VCC turn-on threshold –300 mV 150 300 µA Supply current, on VCC = 12 V (no load on GT1 or GT2) 4 6 mA undervoltage lockout PARAMETER TEST CONDITIONS MIN TYP MAX UNITS VCC turn-on threshold (UCCx8500/502) 15.4 16 16.6 V UVLO hysteresis (UCCx8500/502) 5.8 6.3 V Shunt voltage (UCCx8500/502) IVCC = 10 mA 15.4 16.2 17.0 V VCC turn-on threshold (UCCx8501/503) 9.7 10.2 10.8 V VCC turn-off threshold 9.4 9.7 V UVLO hysteresis (UCCx8501/503) 0.3 0.5 V voltage amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input voltage 0 °C ≤ TA ≤ 70°C 7.387 7.500 7.613 V Input voltage –40 °C ≤ TA ≤ 85°C 7.35 7.50 7.65 V VSENSE bias current 50 200 nA Open loop gain VAOUT = 2 V to 5 V 50 90 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 PFC overvoltage protection and enable PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Over voltage reference VREF + 0.480 VREF + 0.500 VREF + 0.520 V Hysteresis 300 500 600 mV Enable threshold 1.7 1.9 2.1 V Enable hysteresis 0.1 0.2 0.3 V current amplifier PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Input offset voltage VCM = 0 V, VCAOUT = 3 V –6 0 6 mV Input bias current VCM = 0 V, VCAOUT = 3 V −50 −100 nA Input offset current VCM = 0 V, VCAOUT = 3 V 25 100 nA Open loop gain VCM = 0 V, VCAOUT = 2 V to 5 V 90 dB Common−mode rejection ratio VCM = 0 V to 1.5 V, VCAOUT = 3 V 90 dB High-level output voltage ILOAD = –120 µA 5.6 7.0 7.5 V Low-level output voltage ILOAD = 1 mA 0.1 0.2 0.5 V Gain bandwidth product See Note 1 2.5 MHz NOTES: 1. Ensured by design. Not production tested. 2. See Figure 6 for reference variation. 3. See Figure 5 for reference variation for VCC < 10.8 V. |
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