Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

UC2843B Fiches technique(PDF) 4 Page - ON Semiconductor

No de pièce UC2843B
Description  HIGH PERFORMANCE CURRENT MODE CONTROLLERS
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  ONSEMI [ON Semiconductor]
Site Internet  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

UC2843B Fiches technique(HTML) 4 Page - ON Semiconductor

  UC2843B Datasheet HTML 1Page - ON Semiconductor UC2843B Datasheet HTML 2Page - ON Semiconductor UC2843B Datasheet HTML 3Page - ON Semiconductor UC2843B Datasheet HTML 4Page - ON Semiconductor UC2843B Datasheet HTML 5Page - ON Semiconductor UC2843B Datasheet HTML 6Page - ON Semiconductor UC2843B Datasheet HTML 7Page - ON Semiconductor UC2843B Datasheet HTML 8Page - ON Semiconductor UC2843B Datasheet HTML 9Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 20 page
background image
UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (VCC = 15 V [Note 8], RT = 10 k, CT = 3.3 nF, for typical values TA = 25°C, for min/max values
TA is the operating ambient temperature range that applies [Note 9], unless otherwise noted.)
UC284XB
UC384XB, BV
Characteristics
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
PWM SECTION
Duty Cycle
Maximum (UC284XB, UC384XB)
Maximum (UC384XBV)
Minimum
DC(max)
DC(min)
94
96
0
94
93
96
96
0
%
TOTAL DEVICE
Power Supply Current
Startup (VCC = 6.5 V for UCX843B,
Startup (VCC 14 V for UCX842B, BV)
Operating (Note 8)
ICC + IC
0.3
12
0.5
17
0.3
12
0.5
17
mA
Power Supply Zener Voltage (ICC = 25 mA)
VZ
30
36
30
36
V
8. Adjust VCC above the Startup threshold before setting to 15 V.
9. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.
Tlow = 0°C for UC3842B, UC3843B; –25°C for UC2842B, UC2843B; –40°C for UC3842BV, UC3843BV
Thigh = +70°C for UC3842B, UC3843B; +85°C for UC2842B, UC2843B; +105°C for UC3842BV, UC3843BV
NCV3843BV: Tlow = –40°C, Thigh = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and
change control.
0.8
2.0
5.0
8.0
20
50
80
1.0 M
500 k
200 k
100 k
50 k
20 k
10 k
fOSC, OSCILLATOR FREQUENCY (kHz)
VCC = 15 V
TA = 25°C
Figure 2. Timing Resistor
versus Oscillator Frequency
Figure 3. Output Deadtime
versus Oscillator Frequency
1.0 M
500 k
200 k
100 k
50 k
20 k
10 k
fOSC, OSCILLATOR FREQUENCY (kHz)
1.0
2.0
5.0
10
20
50
100
1
2
Figure 4. Oscillator Discharge Current
versus Temperature
Figure 5. Maximum Output Duty Cycle
versus Timing Resistor
7.0
-55
TA, AMBIENT TEMPERATURE (°C)
-25
0
25
50
75
100
125
7.5
8.0
8.5
9.0
VCC = 15 V
VOSC = 2.0 V
40
0.8
RT, TIMING RESISTOR (kΩ)
1.0
2.0
3.0
4.0
5.0 6.0 7.0 8.0
50
60
70
80
90
100
Idischg = 7.5 mA
VCC = 15 V
CT = 3.3 nF
TA = 25°C
1. CT = 10 nF
2. CT = 5.0 nF
3. CT = 2.0 nF
4. CT = 1.0 nF
5. CT = 500 pF
6. CT = 200 pF
7. CT = 100 pF
5
Idischg = 8.8 mA
7
3
6
4
VCC = 15 V
TA = 25°C


Numéro de pièce similaire - UC2843B

FabricantNo de pièceFiches techniqueDescription
logo
STMicroelectronics
UC2843B STMICROELECTRONICS-UC2843B Datasheet
135Kb / 15P
   HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
logo
Guangdong Youtai Semico...
UC2843B UMW-UC2843B Datasheet
832Kb / 9P
   Low Start-Up and Operating Current
logo
STMicroelectronics
UC2843B STMICROELECTRONICS-UC2843B Datasheet
135Kb / 15P
   HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER
logo
Guangdong Youtai Semico...
UC2843B UMW-UC2843B Datasheet
779Kb / 7P
   Low Start-Up and Operating Current
logo
Unisonic Technologies
UC2843B UTC-UC2843B Datasheet
210Kb / 9P
   HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
More results

Description similaire - UC2843B

FabricantNo de pièceFiches techniqueDescription
logo
Motorola, Inc
UC3842B MOTOROLA-UC3842B Datasheet
401Kb / 16P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Freescale Semiconductor...
MC34129EF FREESCALE-MC34129EF Datasheet
444Kb / 16P
   high performance current mode controllers
logo
ON Semiconductor
UC3844BNG ONSEMI-UC3844BNG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BDR2G ONSEMI-UC3845BDR2G Datasheet
387Kb / 19P
   High Performance Current Mode Controllers
December, 2012 ??Rev. 11
UC3845BVDG ONSEMI-UC3845BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3845BVDR2G ONSEMI-UC3845BVDR2G Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
UC3844BVDG ONSEMI-UC3844BVDG Datasheet
399Kb / 19P
   High Performance Current Mode Controllers
August, 2013 ??Rev. 11
logo
Unisonic Technologies
UC3842B UTC-UC3842B_08 Datasheet
518Kb / 11P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
Motorola, Inc
UC3844 MOTOROLA-UC3844 Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
logo
ON Semiconductor
UC3842A ONSEMI-UC3842A Datasheet
399Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
1996 REV 1
UC3844 ONSEMI-UC3844 Datasheet
376Kb / 14P
   HIGH PERFORMANCE CURRENT MODE CONTROLLERS
1996 REV 1
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


Fiches technique Télécharger

Go To PDF Page


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


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
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