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NCV1455BDR2 Datasheet

  • NCV1455BDR2

  • Timers

  • 10頁(yè)

  • ONSEMI

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MC1455, MC1455B,
NCV1455B
Timers
The MC1455 monolithic timing circuit is a highly stable controller
capable of producing accurate time delays or oscillation. Additional
terminals are provided for triggering or resetting if desired. In the time
delay mode, time is precisely controlled by one external resistor and
capacitor. For astable operation as an oscillator, the free鈭抮unning
frequency and the duty cycle are both accurately controlled with two
external resistors and one capacitor. The circuit may be triggered and
reset on falling waveforms, and the output structure can source or sink
up to 200 mA or drive MTTL circuits.
鈥?/div>
Direct Replacement for NE555 Timers
鈥?/div>
Timing from Microseconds through Hours
鈥?/div>
Operates in Both Astable and Monostable Modes
鈥?/div>
Adjustable Duty Cycle
鈥?/div>
High Current Output Can Source or Sink 200 mA
鈥?/div>
Output Can Drive MTTL
鈥?/div>
Temperature Stability of 0.005% per
擄C
鈥?/div>
Normally ON or Normally OFF Output
http://onsemi.com
MARKING
DIAGRAMS
8
1
XXXXXXXXX
AWL
YYWW
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
8
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
xx
A
WL, L
YY, Y
WW, W
XXXXXX
ALYW
1
1.0 k
MT2
3
8
6
4
2
MC1455
7
1
Load
MT1
117 Vac/60 Hz
= Specific Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
10 k
0.1
mF
5
0.01
mF
R
20 M
G
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page ___ of this data sheet.
(Create 鈭?Named 鈭?OrderingInfoText.)
1.0
mF
C
鈭?0 V
1N4003
t = 1.1; R and C = 22 sec
Time delay (t) is variable by
changing R and C (see Figure 16).
1N4740
10
mF
250 V
+
3.5 k
鈭?/div>
Figure 1. 22 Second Solid State Time Delay Relay Circuit
V
R
Reset
5
Control
Voltage
3
Discharge
V
O
Q
+
Comp
鈭払
5k
1
Gnd
4
Reset
S Inhibit/
Reset
3
Output
Output
I
Sink
I
Source
Gnd
1
2
4
8
V
CC
MC1455
7
I
CC
700
Discharge
Threshold
6
Trigger
I
th
V
CC
V
CC
8
6
5
Control Voltage
5k
2
5k
+
Comp
A
鈭?/div>
Flip
R Flop
7
+
0.01
mF
Threshold
2.0 k
V
S
Trigger
Test circuit for measuring DC parameters (to set output and
measure parameters):
a) When V
S
w
2/3 V
CC
, V
O
is low.
b) When V
S
v
1/3 V
CC
, V
O
is high.
c) When V
O
is low, Pin 7 sinks current. To test for Reset, set V
O
c)
high, apply Reset voltage, and test for current flowing into Pin 7.
c)
When Reset is not in use, it should be tied to V
CC
.
Figure 2. Representative Block Diagram
漏
Semiconductor Components Industries, LLC, 2004
Figure 3. General Test Circuit
1
March, 2004 鈭?Rev. 8
Publication Order Number:
MC1455/D

NCV1455BDR2 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • 時(shí)鐘/計(jì)時(shí) - 可編程計(jì)時(shí)器和振蕩器

  • -

  • 555 型，計(jì)時(shí)器/振蕩器（單路）

  • -

  • -

  • 4.5 V ~ 16 V

  • 10mA

  • -40°C ~ 125°C

  • 8-SOIC（0.154"，3.90mm 寬）

  • 帶卷 (TR)

  • 8-SOICN

  • 表面貼裝

  • NCV1455BDR2OS

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