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UCC28C45DRG4 Datasheet(PDF) 4 Page - Texas Instruments |
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UCC28C45DRG4 Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 32 page  UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, UCC28C45 UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, UCC38C45 SLUS458E -- AUGUST 2001 -- REVISED OCTOBER 2010 4 www.ti.com electrical characteristics VDD = 15 V (See Note 1), RT =10kΩ,CT =3.3 nF,CVDD =0.1μF and no load on the outputs, TA =--40°C to 105°C for the UCC28C4x and TA =0°Cto70°C for the UCC38C4x, TA =TJ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Output Section VOUT low (RDS(on) pull-down) ISINK = 200 mA 5.5 15 Ω VOUThigh (RDS(on) pull-up) ISOURCE = 200 mA 10 25 Ω Rise tIme TA =25°C, CLOAD =1nF 25 50 ns Fall time TA =25°C, CLOAD =1nF 20 40 ns Undervoltage Lockout Section UCC38C42, UCC38C44 13.5 14.5 15.5 Start threshold UCC38C43, UCC38C45 7.8 8.4 9.0 Start threshold UCC38C40, UCC38C41 6.5 7.0 7.5 V UCC38C42, UCC38C44 8 9 10 V Minimum operating voltage UCC38C43, UCC38C45 7.0 7.6 8.2 Minimum operating voltage UCC38C40, UCC38C41 6.1 6.6 7.1 PWM Section Maximum duty cycle UCC38C42, UCC38C43, UCC38C40, VFB <2.4 V 94% 96% Maximum duty cycle UCC38C44, UCC38C45, UCC38C41, VFB <2.4 V 47% 48% Minimum duty cycle VFB >2.6 V 0% Current Supply Section Start-up current (ISTART-UP) VDD = Undervoltage lockout start threshold (--0.5 V) 50 100 μA Operating supply current (IDD) VFB =VCS =0V 2.3 3.0 mA NOTE 1: Adjust VDD above the start threshold before setting at 15 V. 1 2 3 4 8 7 6 5 COMP FB CS RT/CT VREF VDD OUT GND PDIP (P) or SOIC (D) PACKAGE (TOP VIEW) MSOP (DGK) PACKAGE (TOP VIEW) VREF VDD OUT GND 8 7 6 5 1 2 3 4 COMP FB CS RT/CT |
Similar Part No. - UCC28C45DRG4 |
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Similar Description - UCC28C45DRG4 |
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