Moteur de recherche de fiches techniques de composants électroniques |
|
UC2853N Fiches technique(PDF) 3 Page - Texas Instruments |
|
|
UC2853N Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 10 page 3 UC1853 UC2853 UC3853 ELECTRICAL CHARACTERISTICS Unless otherwise stated, these parameters apply for TA = –55°C to +125°C for the UC1853; –25°C to +85°C for the 2853; and 0°C to +70°C for the UC3853; VCC = 16V, VFB = 3V, IAC = 100 mA, VVCOMP = 3.75V, VICOMP = 3V, TA =TJ. PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Multiplier Section Output Current – IAC Limited VCC = 11V, VVCOMP = 6V –230 –200 –170 µA Output Current – Zero IAC = 0 µA –2 –0.2 2 µA Output Current – Power Limited VCC = 12V, VVCOMP = 5.5V –236 –178 –168 µA Output Current VCC= 12V, VVCOMP = 2V –22 µA VCC= 12V, VVCOMP = 5V –156 µA VCC= 40V, VVCOMP =2V –2 µA VCC= 40V, VVCOMP = 5V –14 µA Multiplier Gain Constant VCC= 12V, VVCOMP = 5.5V (Note 2) –1.05 –0.9 –0.75 V –1 Oscillator Section Oscillator Initial Frequency TA = 25°C 67.5 75 82.5 kHz Oscillator Frequency Line, Load, Temperature 56 75 94 kHz Synchronization Frequency Range 100 kHz Synchronization Pulse Amplitude Pulse slew rate = 100V/ msec (Note 3) 2 V Output Driver Section Maximum Output Voltage 0mA load, VCC = 20V 12 15 17.5 V Output High 0mA load, VCC = 12V, ref. to VCC –2.7 –1.7 V –50mA load, VCC = 12V, ref. to VCC –3 –2.2 V Output Low (Device Inactive) Vcc = 0V, 20mA load (Sinking) 0.9 2.0 V Output Low (Device Active) 50mA load (Sinking) 0.5 1 V OUT Rise Time 1nF from OUT to GND 55 100 ns OUT Fall Time 1nF from OUT to GND 35 100 ns OUT Maximum Duty Cycle VICOMP =0V 88 93 % OVP Comparator Section Threshold Voltage Volts Above EA Input V 90 150 mV Hysteresis 80 mV Note 1: PWM modulator gain DutyCycle VICOMP = ∆ ∆ Note 2: Gain constant K IAC VCOMP V IMO VCC VCC () ( . ) = • •• 15 64 , VCC = 12V. Note 3. Synchronization is accomplished with a falling edge of 2V mag- nitude and 100V/ µsec slew rate. (continued) |
Numéro de pièce similaire - UC2853N |
|
Description similaire - UC2853N |
|
|
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 |