Zakładka z wyszukiwarką danych komponentów
  Polish  ▼
ALLDATASHEET.PL

X  

MC1455BDR2 Arkusz danych(PDF) 6 Page - ON Semiconductor

Numer części MC1455BDR2
Szczegółowy opis  Timers
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Producent  ONSEMI [ON Semiconductor]
Strona internetowa  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MC1455BDR2 Arkusz danych(HTML) 6 Page - ON Semiconductor

Back Button MC1455BDR2 Datasheet HTML 2Page - ON Semiconductor MC1455BDR2 Datasheet HTML 3Page - ON Semiconductor MC1455BDR2 Datasheet HTML 4Page - ON Semiconductor MC1455BDR2 Datasheet HTML 5Page - ON Semiconductor MC1455BDR2 Datasheet HTML 6Page - ON Semiconductor MC1455BDR2 Datasheet HTML 7Page - ON Semiconductor MC1455BDR2 Datasheet HTML 8Page - ON Semiconductor MC1455BDR2 Datasheet HTML 9Page - ON Semiconductor MC1455BDR2 Datasheet HTML 10Page - ON Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 11 page
background image
MC1455, MC1455B, NCV1455B
http://onsemi.com
6
Figure 15. Monostable Waveforms
Figure 16. Time Delay
Figure 17. Astable Circuit
Figure 18. Astable Waveforms
(RA = 10 kW, C = 0.01 mF, RL = 1.0 kW, VCC = 15 V)
(RA = 5.1 kW, C = 0.01 mF, RL = 1.0 kW; RB = 3.9 kW, VCC = 15 V)
t = 20
ms/cm
t = 50
ms/cm
100
10
1.0
0.1
0.01
0.001
10
ms 100 ms 1.0 ms 10 ms
100 ms
1.0
10
100
td, TIME DELAY (s)
RL
+VCC (5.0 V to 15 V)
Reset
VCC
8
7Discharge
6Threshold
5
Control
Voltage
1
2
Trigger
Output
3
4
RA
RL
MC1455
C
RB
Astable Mode
In the astable mode the timer is connected so that it will
retrigger itself and cause the capacitor voltage to oscillate
between 1/3 VCC and 2/3 VCC. See Figure 17.
The external capacitor changes to 2/3 VCC through RA and
RB and discharges to 1/3 VCC through RB. By varying the
ratio of these resistors the duty cycle can be varied. The
charge and discharge times are independent of the supply
voltage.
The charge time (output high) is given by:
t1 + 0.695(RA ) RB)C
The discharge time (output low) is given by:
t2 + 0.695(RB)C
Thus the total period is given by:
T
+ t1 ) t2 + 0.695(RA ) 2RB)C
The frequency of oscillation is then:
f
+
1
1
+
1.44
(RA ) 2RB)C
and may be easily found as shown in Figure 19.
The duty cycle is given by:
DC
+
RB
RA ) 2RB
To obtain the maximum duty cycle RA must be as small as
possible; but it must also be large enough to limit the
discharge current (Pin 7 current) within the maximum rating
of the discharge transistor (200 mA).
The minimum value of RA is given by:
RA w
VCC(Vdc)
I7 (A)
w
VCC(Vdc)
0.2
Figure 19. Free Running Frequency
100
10
1.0
0.1
0.01
0.001
(RA + 2 RB)
0.1
1.0
10
100
1.0 k
10 k
100
f, FREE RUNNING FREQUENCY (Hz)


Podobny numer części - MC1455BDR2

ProducentNumer częściArkusz danychSzczegółowy opis
logo
ON Semiconductor
MC1455BDR2 ONSEMI-MC1455BDR2 Datasheet
223Kb / 11P
   Timers Direct Replacement for NE555 Timers Adjustable Duty Cycle
December, 2009 ??Rev. 10
MC1455BDR2G ONSEMI-MC1455BDR2G Datasheet
223Kb / 11P
   Timers Direct Replacement for NE555 Timers Adjustable Duty Cycle
December, 2009 ??Rev. 10
More results

Podobny opis - MC1455BDR2

ProducentNumer częściArkusz danychSzczegółowy opis
logo
ON Semiconductor
MC1455 ONSEMI-MC1455 Datasheet
147Kb / 10P
   Timers
March, 2004 ??Rev. 8
MC1455 ONSEMI-MC1455 Datasheet
204Kb / 10P
   Timers
March, 2004 ??Rev. 8
logo
Diodes Incorporated
NE555 DIODES-NE555 Datasheet
729Kb / 14P
   PRECISION TIMERS
logo
Texas Instruments
TLC551 TI-TLC551 Datasheet
277Kb / 16P
[Old version datasheet]   LinCMOSE TIMERS
logo
Carlo Gavazzi Holding A...
DMB01 CARLOGAVAZZI-DMB01 Datasheet
138Kb / 4P
   Timers Multifunction
logo
National Semiconductor ...
LM122 NSC-LM122 Datasheet
281Kb / 14P
   Precision Timers
logo
Diodes Incorporated
NE555S-13 DIODES-NE555S-13 Datasheet
729Kb / 14P
   PRECISION TIMERS
logo
Texas Instruments
TLC551 TI1-TLC551_06 Datasheet
297Kb / 17P
[Old version datasheet]   LinCMOSE TIMERS
logo
List of Unclassifed Man...
EBSSM2310M ETC2-EBSSM2310M Datasheet
63Kb / 2P
   Timers Interval
DMB01CM24 ETC2-DMB01CM24 Datasheet
132Kb / 4P
   Timers Multifunction
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


Arkusz danych Pobierz

Go To PDF Page


Link URL




Polityka prywatności
ALLDATASHEET.PL
Czy Alldatasheet okazała się pomocna?  [ DONATE ] 

O Alldatasheet   |   Reklama   |   Kontakt   |   Polityka prywatności   |   Linki   |   Lista producentów
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