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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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UCC1895 데이터시트(PDF) 3 Page - Texas Instruments |
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UCC1895 데이터시트(HTML) 3 Page - Texas Instruments |
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3 / 14 page  3 UCC1895 UCC2895 UCC3895 ELECTRICAL CHARACTERISTICS: Unless otherwise specified, VDD=12V, RT=82k W, CT=220pF, RDELAB=10kW, RDELCD=10k W,CREF=0.1mF, CVDD=1.0 mF, no load at outputs. TA =TJ. TA = 0°C to 70°C for UCC3895x, –40°C to +85°C for UCC2895x, and –55 °C to +125°C for UCC1895x. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Voltage Reference Section Output Voltage TJ = 25°C 4.94 5.00 5.06 V 10V < VDD < 17.5V, 0mA < IREF < 5mA, Temperature 4.85 5 5.15 V Short Circuit Current REF = 0V, TJ = 25°C 10 20 mA Error Amplifier Section Common Mode Input Voltage Range –0.1 3.6 V Offset Voltage –7 7 mV Input Bias Current (EAP, EAN) –1 1 mA EAOUT VOH EAP–EAN = 500mV, IEAOUT= –0.5mA 4.0 4.5 5.0 V EAOUT VOL EAP–EAN = –500mV, IEAOUT= 0.5mA 0 0.2 0.4 V EAOUT Source Current EAP–EAN = 500mV, EAOUT= 2.5V 1.0 1.5 mA EAOUT Sink Current EAP–EAN = –500mV, EAOUT= 2.5V, (Note 4) 2.5 4.5 mA Open Loop DC Gain 75 85 dB Unity Gain Bandwidth (Note 3) 5.0 7.0 MHz Slew Rate EAN from 1V to 0V, EAP = 500mV, EAOUT from 0.5V to 3.0V, (Note 3) 1.5 2.2 V/ ms No Load Comparator Turn-Off Threshold 0.45 0.50 0.55 V No Load Comparator Turn-On Threshold 0.55 0.60 0.69 V No Load Comparator Hysteresis 0.035 0.100 0.165 V Oscillator Section Frequency TJ = 25°C 473 500 527 kHz Total Variation Line, Temperature (Note 3) 2.5 5 % SYNC VIH 2.05 2.10 2.25 V SYNC VIL 1.85 1.90 1.95 V SYNC VOH ISYNC = –400 mA, CT = 2.6V 4.1 4.5 5.0 V SYNC VOL ISYNC = 100 mA, CT = 0V 0.0 0.5 1.0 V SYNC Output Pulse Width SYNC Load = 3.9k W and 30pF in parallel 85 135 ns RT Voltage 2.9 3 3.1 V CT Peak Voltage 2.25 2.35 2.50 V CT Valley Voltage UCC2895, UCC3895 0.0 0.2 0.4 V CT Valley Voltage UCC1895 0.0 0.2 0.6 V PWM Comparator Section EAOUT to RAMP Input Offset Voltage RAMP = 0V, DELAB = DELCD = REF 0.72 0.85 1.05 V Minimum Phase Shift (OUTA to OUTC, OUTB to OUTD) RAMP = 0V, EAOUT = 650mV (Note 1) 0.00 0.85 1.40 % RAMP to OUTC/OUTD Delay RAMP from 0V to 2.5V, EAOUT = 1.2V, DELAB = DELCD = REF (Note 2) 70 120 ns RAMP Bias Current RAMP < 5V, CT < 2.2V –5 5 mA RAMP Sink Current RAMP = 5V, CT < 2.6V 12 19 mA Current Sense Section CS Bias Current 0 < CS , 2.5V, 0 < ADS < 2.5V –4.5 20 mA Peak Current Threshold 1.90 2.00 2.10 V Overcurrent Threshold 2.4 2.5 2.6 V CS to Output Delay CS from 0 to 2.3V, DELAB = DELCD = REF 75 110 ns |
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유사한 설명 - UCC1895 |
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