Electronic Components Datasheet Search |
|
UCC2895-EP Datasheet(PDF) 6 Page - Texas Instruments |
|
|
UCC2895-EP Datasheet(HTML) 6 Page - Texas Instruments |
6 / 20 page F + 200 t f(OUTA) * tf(OUTC) t PERIOD F + 200 t f(OUTB) * tf(OUTD) t PERIOD or UCC2895-EP SCBS809F – DECEMBER 2005 – REVISED OCTOBER 2009 www.ti.com Electrical Characteristics (continued) VDD = 12 V, RT = 82 kΩ, CT = 220 pF, RDELAB = 10 kΩ, RDELCD = 10 kΩ, CREF = 0.1 μF, CVDD = 1 μF, No load at outputs, TA = TJ, TA = –55°C to 125°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Oscillator Frequency TJ = 25°C 473 500 527 kHz Total variation Line, Temperature(1) 2.5 5 % SYNC VIH 2.05 2.1 2.32 V SYNC VIL 1.85 1.9 1.95 V SYNC VOH ISYNC = –400 μA, CT = 2.6 V 4.1 4.5 5 V SYNC VOL ISYNC = 100 μA, CT = 0 V 0 0.5 1 V SYNC output pulse width SYNC load = 3.9 k Ω and 30 pF in parallel 85 135 ns RT voltage 2.9 3 3.1 V CT peak voltage 2.25 2.35 2.55 V CT valley voltage 0 0.2 0.65 V PWM Comparator EAOUT to RAMP/input offset voltage RAMP = 0 V, DELAB = DELCD = REF 0.72 0.85 1.05 V Minimum phase shift RAMP = 0 V, EAOUT = 650 mV(2) 0 0.85 1.50 % (OUTA to OUTC, OUTB to OUTD) RAMP from 0 V to 2.5 V, EAOUT = 1.2 V, RAMP to OUTC/OUTD delay 70 120 ns DELAB = DELCD = REF(3) RAMP bias current RAMP < 5 V, CT < 2.2 V –5 5 μA RAMP sink current RAMP = 5 V, CT < 2.6 V 12 19 mA Current Sense CS bias current 0 < CS< 2.5 V, 0 < ADS < 2.5 V –4.5 20 μA Peak current threshold 1.9 2 2.1 V Overcurrent threshold 2.4 2.5 2.6 V CS to output delay CS from 0 to 2.3 V, DELAB = DELCD = REF 75 110 ns Soft Start/Shutdown Soft-start source current SS/DISB = 3 V, CS = 1.9 V –40 –35 –30 μA Soft-start sink current SS/DISB = 3 V, CS = 2.6 V 325 350 375 μA Soft-start/disable comparator threshold 0.44 0.5 0.56 V Delay Set ADS = CS = 0 V 0.45 0.5 0.55 V DELAB/DELCD output voltage ADS = 0 V, CS = 2 V 1.9 2 2.1 V Output delay ADS = CS = 0 V(3) (4) 450 525 600 ns ADS bias current 0 V < ADS < 2.5 V, 0 V < CS < 2.5 V –20 20 μA (2) Minimum phase shift is defined as: where: tf(OUTA) = falling edge of OUTA signal tf(OUTB) = falling edge of OUTB signal tf(OUTC) = falling edge of OUTC signal tf(OUTD) = falling edge of OUTD signal t(PERIOD) = period of OUTA or OUTB signal (3) Output delay is measured between OUTA/OUTB or OUTC/OUTD. Output delay is shown in Figure 1 and Figure 2 , where: tf(OUTA) = falling edge of OUTA signal tr(OUTB) = rising edge of OUTB signal (4) Specified by design. Not production tested. 6 Submit Documentation Feedback Copyright © 2005–2009, Texas Instruments Incorporated Product Folder Link(s): UCC2895-EP |
Similar Part No. - UCC2895-EP |
|
Similar Description - UCC2895-EP |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |