参数资料
| 型号： | NCV1455BDR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC OSC MONO TIMING 8SOIC |
| 标准包装： | 1 |
| 类型： | 555 型，计时器/振荡器（单路） |
| 电源电压： | 4.5 V ~ 16 V |
| 电流 - 电源： | 10mA |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-SOICN |
| 安装类型： | 表面贴装 |
| 其它名称： | NCV1455BDR2GOSDKR |
Semiconductor Components Industries, LLC, 2009
December, 2009 Rev. 10
1
Publication Order Number:
MC1455/D
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 freerunning
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 TTL circuits.
Features
Direct Replacement for NE555 Timers
Timing from Microseconds through Hours
Operates in Both Astable and Monostable Modes
Adjustable Duty Cycle
High Current Output Can Source or Sink 200 mA
Output Can Drive TTL
Temperature Stability of 0.005% per °C
Normally ON or Normally OFF Output
PbFree Packages are Available
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
ORDERING INFORMATION
x
= B or V
yyy
= BP1 or P1
A
= Assembly Location
L
= Wafer Lot
Y, YY
= Year
W, WW = Work Week
G or G = PbFree Package
SOIC8
D SUFFIX
CASE 751
1
8
MARKING
DIAGRAMS
PDIP8
P1 SUFFIX
CASE 626
1
8
1
8
MC1455yyy
AWL
YYWWG
1455x
ALYW
G
1
8
Figure 1. 22 Second Solid State Time Delay Relay Circuit
Figure 2. Representative Block Diagram
Figure 3. General Test Circuit
1.0 k
Load
MT2
10 k
0.1
mF
0.01
mF
1
5
2
4
38
6
7
1.0
mF
C
20M
G
MT1
-10 V
1N4003
117
V
ac/60
Hz
1N4740
3.5 k
250 V
-
+
t = 1.1; R and C = 22 sec
Time delay (t) is variable by
changing R and C (see Figure 16).
10
mF
VCC
Threshold
Control Voltage
Trigger
6
5
2
5 k
8
5 k
+
-
Comp
A
+
-
Comp
B
1
GND
Reset
4
R
S
Flip
Flop
Q
Inhibit/
Reset
7
3
Discharge
Output
R
MC1455
VR
Reset
4
8
ICC
VCC
700
Discharge
6
Threshold
7
Ith
2.0 k
VS
Trigger
2
GND
1
3
ISink
ISource
VO
0.01
mF
+
5
Control
Voltage
Output
VCC
MC1455
Test circuit for measuring DC parameters (to set output and measure
parameters):
a) When VS w 2/3 VCC, VO is low.
b) When VS v 1/3 VCC, VO is high.
c) When VO is low, Pin 7 sinks current. To test for Reset, set VO
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 VCC.
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