IC OSC MONO TIMING 8-SOIC

MC1455BDR2G

Manufacturer Part NumberMC1455BDR2G
DescriptionIC OSC MONO TIMING 8-SOIC
ManufacturerON Semiconductor
Type555 Type, Timer/Oscillator (Single)
MC1455BDR2G datasheet
 

Specifications of MC1455BDR2G

Current - Supply10mAMounting TypeSurface Mount
Voltage - Supply4.5 V ~ 16 VOperating Temperature-40°C ~ 85°C
Package / Case8-SOIC (0.154", 3.90mm Width)Rohs CompliantYES
# Internal Timers1Power Dissipation625mW
Operating Supply Voltage (min)4.5VOperating Supply Voltage (typ)5/9/12/15V
Operating Supply Voltage (max)16VPackage TypeSOIC N
High Level Output Current-200mALow Level Output Current200mA
Pin Count8Operating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingSurface Mount
Lead Free Status / RoHS StatusLead free / RoHS CompliantCount-
Frequency-Other namesMC1455BDR2G
MC1455BDR2GOSTR
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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−running
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
Pb−Free Packages are Available
1.0 k
3
8
6
4
10 k
R
2
MC1455
7
5
0.1 mF
0.01 mF
1.0 mF
1
t = 1.1; R and C = 22 sec
1N4740
Time delay (t) is variable by
changing R and C (see Figure 16).
Figure 1. 22 Second Solid State Time Delay Relay Circuit
V
CC
8
5 k
6
Threshold
+
Comp
Flip
5
A
R
Flop
Control Voltage
-
5 k
+
Inhibit/
S
Comp
Reset
2
B
Trigger
-
5 k
1
GND
Reset
Figure 2. Representative Block Diagram
© Semiconductor Components Industries, LLC, 2009
December, 2009 − Rev. 10
Load
MT2
MT1
G
20 M
C
1N4003
-10 V
3.5 k
-
10 mF
250 V
+
0.01 mF
7
Discharge
V
Q
3
Output
Test circuit for measuring DC parameters (to set output and measure
parameters):
a) When V
b) When V
c) When V
c)
high, apply Reset voltage, and test for current flowing into Pin 7.
4
c)
When Reset is not in use, it should be tied to V
1
http://onsemi.com
MARKING
DIAGRAMS
8
SOIC−8
1455x
ALYW
D SUFFIX
8
CASE 751
1
1
8
PDIP−8
MC1455yyy
P1 SUFFIX
CASE 626
YYWWG
8
1
1
x
= B or V
yyy
= BP1 or P1
A
= Assembly Location
L
= Wafer Lot
Y, YY
= Year
W, WW = Work Week
G or G
= Pb−Free Package
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 9 of this data sheet.
V
CC
I
CC
V
R
Reset
4
8
700
5
7
V
+
CC
Control
Discharge
Voltage
MC1455
3
Threshold
6
Output
2.0 k
I
th
GND
Trigger
I
Sink
O
1
2
I
Source
w 2/3 V
, V
is low.
S
CC
O
v 1/3 V
, V
is high.
S
CC
O
is low, Pin 7 sinks current. To test for Reset, set V
O
.
CC
Figure 3. General Test Circuit
Publication Order Number:
G
AWL
V
S
O
MC1455/D

MC1455BDR2G Summary of contents

  • Page 1

    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 ...

  • Page 2

    MAXIMUM RATINGS (T = +25°C, unless otherwise noted.) A Rating Power Supply Voltage Discharge Current (Pin 7) Power Dissipation (Package Limitation) P1 Suffix, Plastic Package Derate above T = +25° Suffix, Plastic Package Derate above T = +25°C ...

  • Page 3

    V , MINIMUM TRIGGER VOLTAGE ( (min) Figure 4. Trigger Pulse Width 2.0 1.8 1.6 25°C 1.4 1.2 1.0 0.8 0.6 0.4 5.0 V ≤ V ...

  • Page 4

    V , SUPPLY VOLTAGE (Vdc) CC Figure 10. Delay Time versus Supply Voltage 300 250 200 150 100 1.015 1.010 1.005 1.000 0.995 0.990 0.985 15 ...

  • Page 5

    Threshold Comparator V CC 4.7 k Threshold 10 k Trigger Reset Reset Discharge Discharge GND The MC1455 is a monolithic timing circuit which uses an external resistor − capacitor network as its timing element. It can be used in both ...

  • Page 6

    C = 0.01 mF 1.0 kW Figure 15. Monostable Waveforms +V (5 Reset Output 3 MC1455 ...

  • Page 7

    Linear Voltage Ramp In the monostable mode, the resistor can be replaced by a constant current source to provide a linear ramp voltage. The capacitor still charges from 2 ramp time is given by: 2 ...

  • Page 8

    Pulse Width Modulation If the timer is triggered with a continuous pulse train in the monostable mode of operation, the charge time of the capacitor can be varied by changing the control voltage at Pin 5. In this manner, the ...

  • Page 9

    ... MC1455D MC1455DG MC1455DR2 MC1455DR2G MC1455BD MC1455BDG MC1455BDR2 MC1455BDR2G MC1455BP1 MC1455BP1G NCV1455BDR2* NCV1455BDR2G* †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NCV prefix is for automotive and other applications requiring site and control changes. ...

  • Page 10

    ... G C SEATING PLANE −Z− 0.25 (0.010 *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE DIMENSIONS SOIC−8 D SUFFIX CASE 751−07 ISSUE 0.10 (0.004 SOLDERING FOOTPRINT* 1 ...

  • Page 11

    ... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...