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UCC2804 Datasheet(PDF) 5 Page - Texas Instruments |
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UCC2804 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 15 page  UCC2800/2801/2802/2803/2804/2805EP LOW POWER BICMOS CURRENT MODE PWM SGLS135E − SEPTEMBER 2002 − REVISED DECEMBER 2007 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics, TA = −40_C to 125_C for Q temp and TA= −55_C to 125_C for M temp, VCC = 10 V (see Note 1), RT = 100 kΩ from REF to RC, CT = 330 pF from RC to GND, 0.1 F capacitor from VCC to GND, 0.1 F capacitor from VREF to GND and TA = TJ (unless otherwise stated) PARAMETER TEST CONDITIONS UCC280XQ, UCC280XM UNIT PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Oscillator Section Oscillator frequency See Note 2 UCC2800/01/02/04 40 46 52 kHz Oscillator frequency See Note 2 UCC2803/05 26 31 36 kHz Temperature stability See Note 7 2.5% Amplitude peak-to-peak 2.25 2.4 2.55 V Oscillator peak voltage 2.45 V Error Amplifier Section Input voltage COMP = 2.5 V UCC2800/01/02/04 2.44 2.5 2.56 V Input voltage COMP = 2 V UCC2803/05 1.95 2 2.05 V Input bias current −1 1 µA Open loop voltage gain 60 80 db COMP sink current FB = 2.7 V, COMP = 1.1 V 0.3 3.5 mA COMP source current FB = 1.8 V, COMP = REF − 1.2 V −0.2 −0.5 −0.8 mA Gain bandwidth product See Note 7 2 MHz PWM Section Maximum duty cycle UCC2800/02/03 97% 99% 100% Maximum duty cycle UCC2801/04/05 48% 49% 50% Minimum duty cycle COMP = 0 V 0 Current Sense Section Gain See Note 3 1.1 1.65 1.8 V/V Maximum input signal COMP = 5 V, See Note 4 0.9 1 1.1 V Input bias current −200 200 nA CS blank time 50 100 150 ns Overcurrent threshold voltage 1.42 1.55 1.68 V COMP to CS offset voltage CS = 0 V 0.45 0.9 1.35 V Output Section (OUT) IOUT = 20 mA All parts 0.1 0.4 Low-level output voltage IOUT = 200 mA All parts 0.35 0.9 V Low-level output voltage IOUT = 50 mA, VCC = 5 V UCC2803/05 0.15 0.4 V IOUT = 20 mA, VCC = 0 V All parts 0.7 1.2 IOUT = −20 mA All parts 0.15 0.4 High-level output voltage VSAT (VCC − OUT) IOUT = −200 mA All parts 1 1.9 V High-level output voltage VSAT (VCC − OUT) IOUT = −50 mA, VCC = 5 V UCC2803/05 0.4 0.9 V Rise time CL = 1 nF 41 70 ns Fall time CL = 1 nF 44 75 ns |
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Similar Description - UCC2804 |
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