Moteur de recherche de fiches techniques de composants électroniques |
|
UC2853A Fiches technique(PDF) 3 Page - Texas Instruments |
|
|
UC2853A Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 49 page www.ti.com ELECTRICAL CHARACTERISTICS UCC28019 SLUS755B – APRIL 2007 – REVISED DECEMBER 2007 Unless otherwise noted, VCC = 15 VDC, 0.1 µF from VCC to GND, -40°C ≤ TJ = TA ≤ 125°C. All voltages are with respect to GND. Currents are positive into and negative out of the specified terminal. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VCC Bias Supply IVCC(start) Pre-start current VCC = VCCON – 0.1 V 25 100 200 µA IVCC(stby) Standby current VSENSE = 0.5 V 1.0 2.1 2.9 mA IVCC(on_load) Operating current VSENSE = 4.5 V, CGATE = 4.7 nF 4 7 10 Under Voltage Lockout (UVLO) VCCON Turn on threshold 10.0 10.5 11.0 VCCOFF Turn off threshold 9 9.5 10 V UVLO Hysteresis 0.8 1.0 1.2 Oscillator TA = 25°C 61.7 65.0 68.3 fSW Switching frequency, kHz –40 °C ≤ T A ≤ 125°C 59 65 71 PWM VCOMP = 0 V, VSENSE = 5 V, DMIN Minimum duty cycle 0% ICOMP = 6.4 V DMAX Maximum duty cycle VSENSE = 4.95 V 94% 97% 99.3% tOFF(min) Minimum off time VSENSE = 3 V, ICOMP = 1 V 100 250 600 ns System Protection ISENSE threshold, soft over current VSOC -0.66 -0.73 -0.79 (SOC) , ISENSE threshold, peak current Limit VPCL -1.00 -1.08 -1.15 V (PCL) , VSENSE threshold, open loop ICOMP = 1 V, ISENSE = 0 V, VOLP 0.77 0.82 0.86 protection (OLP), VCOMP = 1 V Open loop protection (OLP) internal VSENSE = 0.5 V 100 250 nA pull-down current VSENSE threshold, output VUVD 4.63 4.75 4.87 under-voltage detection (UVD), VSENSE threshold, output VOVP ISENSE = -0.2 V 5.12 5.25 5.38 over-voltage protection (OVP), V Input brown-out detection (IBOP) VINSBROWNOUT_th 0.76 0.82 0.88 high-to-low threshold Input brown-out Detection (IBOP) VINSENABLE_th 1.4 1.5 1.6 low-to-high threshold IVINS_0 V VINS bias current VINS = 0 V 0 ±0.1 µA ICOMP threshold, external overload 0.6 V protection Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): UCC28019 |
Numéro de pièce similaire - UC2853A |
|
Description similaire - UC2853A |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants 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 |