MOTOROLA MC1455P1, MC1455BP1, MC1455D, MC1455DR2, MC1455BDR2 Datasheet
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 MTTL circuits.
• 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 MTTL
• Temperature Stability of 0.005% per °C
• Normally ON or Normally OFF Output
Order this document by MC1455/D
TIMING CIRCUIT
SEMICONDUCTOR
TECHNICAL DATA
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
Figure 1. 22 Second Solid State Time Delay Relay Circuit
38
10 k
0.1 µF
0.01
t = 1.1; R and C = 22 sec
Time delay (t) is variable by
changing R and C (see Figure 16).
4
2
MC1455
5
µ
F
1.0 k
6
R
7
µ
F
1.0
1
1N4740
20 M
C
MT2
G
–10 V
3.5 k
MT1
250 V–+
Load
1N4003
10 µF
Figure 2. Representative Block Diagram
V
CC
8
Threshold
Control Voltage
Trigger
5 k
6
5
2
5 k
5 k
+
Comp
A
–
+
Comp
B
–
Gnd Reset
R
S
1
Flip
Flop
Inhibit/
Reset
4
Q
7
3
117 Vac/60 Hz
Discharge
Output
D SUFFIX
8
1
PLASTIC PACKAGE
CASE 751
(SO–8)
ORDERING INFORMATION
Operating
Device
MC1455P1
MC1455D
MC1455BD SO–8
MC1455BP1 Plastic DIP
Temperature Range
TA = 0° to +70°C
TA = – 40° to +85°C
Package
Plastic DIP
SO–8
Figure 3. General T est Circuit
V
I
V
CC
2
CC
7
Discharge
Threshold
6
Trigger
V
R
Reset 4 8
Control
Voltage
Output
I
Sink
I
Source
5
MC1455
3
Gnd
1
+
0.01
µ
F
V
O
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 v1/3 VCC, VO is high.
c) When VO is low, Pin 7 sinks current. To test for Reset, set V
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.
CC
700
V
S
2.0 k
I
th
O
MOTOROLA ANALOG IC DEVICE DATA
Motorola, Inc. 1999 Rev 4, 06/1999
1
MC1455, B
MAXIMUM RATINGS
Power Supply Voltage V
Discharge Current (Pin 7) I
Power Dissipation (Package Limitation)
P1 Suffix, Plastic Package
Derate above TA = +25°C
D Suffix, Plastic Package
Derate above TA = +25°C
Operating T emperature Range (Ambient)
MC1455B
MC1455
Storage Temperature Range T
ELECTRICAL CHARACTERISTICS (T
Operating Supply Voltage Range V
Supply Current
VCC = 5.0 V, RL =
VCC = 15 V, RL = R, Low State (Note 1)
Timing Error (R = 1.0 kΩ to 100 kΩ) (Note 2)
Initial Accuracy C = 0.1 µF
Drift with Temperature
Drift with Supply Voltage
Threshold Voltage/Supply Voltage Vth/V
Trigger V oltage
VCC = 15 V
VCC = 5.0 V
Trigger Current I
Reset Voltage V
Reset Current I
Threshold Current (Note 3) I
Discharge Leakage Current (Pin 7) I
Control Voltage Level
VCC = 15 V
VCC = 5.0 V
Output Voltage Low
I
= 10 mA (VCC = 15 V)
Sink
I
= 50 mA (VCC = 15 V)
Sink
I
= 100 mA (VCC = 15 V)
Sink
I
= 200 mA (VCC = 15 V)
Sink
I
= 8.0 mA (VCC = 5.0 V)
Sink
I
= 5.0 mA (VCC = 5.0 V)
Sink
Output Voltage High
VCC = 15 V (I
VCC = 15 V (I
VCC = 5.0 V (I
Rise Time Differential Output t
Fall Time Differential Output t
NOTES: 1. Supply current when output is high is typically 1.0 mA less.
2.Tested at VCC = 5.0 V and VCC = 15 V Monostable mode.
3.This will determine the maximum value of RA + RB for 15 V operation. The maximum total R = 20 MΩ.
(TA = +25°C, unless otherwise noted.)
Rating Symbol Value Unit
+18 Vdc
200 mA
625
5.0
625
160
–40 to +85
0 to +70
–65 to +150 °C
Symbol Min Typ Max Unit
CC
I
CC
V
T
T
R
R
th
dischg
V
CL
V
OL
V
OH
r
f
Source
Source
Source
Characteristics
R
= 200 mA)
= 100 mA)
= 100 mA)
CC
7
P
D
P
D
T
A
stg
= +25°C, VCC = +5.0 V to +15 V, unless otherwise noted.)
A
mW/°C
CC
mW
mW
°C/W
°C
4.5 – 16 V
–
–
–
–
–
– 2/3 –
–
–
– 0.5 – µA
0.4 0.7 1.0 V
– 0.1 – mA
– 0.1 0.25 µA
– – 100 nA
9.0
2.6
–
–
–
–
–
–
–
12.75
2.75
– 100 – ns
– 100 – ns
3.0
10
1.0
50
0.1
5.0
1.67
10
3.33
0.1
0.4
2.0
2.5
–
0.25
12.5
13.3
3.3
6.0
15
–
–
–
–
–
11
4.0
0.25
0.75
2.5
–
–
0.35
–
–
–
mA
%
PPM/°C
%/V
V
V
V
V
2
MOTOROLA ANALOG IC DEVICE DATA
MC1455, B
Figure 4. Trigger Pulse Width
150
125
100
75
50
PW, PULSE WIDTH (ns min)
25
0
V
, MINIMUM TRIGGER VOLTAGE (x VCC = Vdc)
T (min)
Figure 6. High Output Voltage
2.0
1.8
1.6
1.4
1.2
(Vdc)
OH
1.0
–V
0.8
CC
V
0.6
0.4
0.2
0
1.0
2.0 5.0 10 20 50 100
25°C
I
Source
0°C
25°C
5.0 V ≤ VCC ≤ 15 V
(mA)
70°C
0.30.20.10
0.4
Figure 5. Supply Current
10
25°C
8.0
6.0
4.0
, SUPPLY CURRENT (mA)
CC
2.0
I
0
VCC, SUPPLY VOLTAGE (Vdc)
Figure 7. Low Output Voltage
@ VCC = 5.0 Vdc
10
I
Sink
25°C
(mA)
1.0
0.1
, LOW OUTPUT VOL TAGE (Vdc)
OL
V
0.01
1.0 2.0 5.0 10 20 50 100
155.0 10
Figure 8. Low Output Voltage
@ VCC = 10 Vdc
10
1.0
0.1
, LOW OUTPUT VOL TAGE (Vdc)
OL
V
0.01
1.0
2.0 5.0 10 20 50 100
I
(mA)
Sink
MOTOROLA ANALOG IC DEVICE DATA
25°C
, LOW OUTPUT VOL TAGE (Vdc)
OL
V
10
1.0
0.1
0.01
Figure 9. Low Output Voltage
@ VCC = 15 Vdc
25°C
1.0
2.0 5.0 10 20 50 100
I
(mA)
Sink
3
MC1455, B
(
)
Figure 10. Delay Time versus Supply Voltage
1.015
1.010
1.005
1.000
0.995
, DELAY TIME NORMALIZED
d
0.990
t
0.985
0101510 20
5.0
VCC, SUPPLY VOLTAGE (Vdc)
300
250
200
Figure 11. Delay T ime versus Temperature
1.015
1.010
1.005
1.000
0.995
, DELAY TIME NORMALIZED
d
0.990
t
0.985
–75 –50 –25 0 25 50 75 100 125
Figure 12. Propagation Delay
versus Trigger Voltage
TA, AMBIENT TEMPERATURE (°C)
150
100
, PROPAGATION DELAY TIME (ns)t
pd
50
0°C
70°C
0
0
V
T
25°C
0.1 0.2 0.3 0.4
, MINIMUM TRIGGER VOLTAGE (x VCC = Vdc)
min
4
MOTOROLA ANALOG IC DEVICE DATA
Loading...