NCV1455B Datasheet PDF - ON Semiconductor


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NCV1455B
ON Semiconductor

Part Number NCV1455B
Description Timers
Page 10 Pages

NCV1455B datasheet pdf
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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 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
10 k
0.1 mF
5
0.01 mF
1.0 k
38
46
2 MC1455 7
R
1 1.0 mF
MT2
20 M G
C
−10 V
Load
MT1
1N4003
t = 1.1; R and C = 22 sec
Time delay (t) is variable by
changing R and C (see Figure 16).
1N4740
3.5 k
10
mF
250 V +
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MARKING
DIAGRAMS
8
1
P1 SUFFIX
PLASTIC PACKAGE
CASE 626
XXXXXXXXX
AWL
YYWW
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
8
XXXXXX
ALYW
1
xx = Specific Device Code
A = Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = Work Week
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page ___ of this data sheet.
(Create − Named − OrderingInfoText.)
Figure 1. 22 Second Solid State Time Delay Relay Circuit
VR ICC VCC
VCC
8
5k
6
Threshold
5
Control Voltage
5k
Trigger
2
5k
+
Comp
−A
+
Comp
−B
1
Gnd
Flip
R Flop
Q
S Inhibit/
Reset
4
Reset
7
Discharge
3
Output
+
0.01 mF
VO
Reset
5
Control
Voltage
3
Output
ISink
ISource
48
VCC
MC1455
700
7
Discharge
Threshold
6 Ith
Gnd Trigger
12
2.0 k
VS
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.
Figure 2. Representative Block Diagram
Figure 3. General Test Circuit
© Semiconductor Components Industries, LLC, 2004
March, 2004 − Rev. 8
1
Publication Order Number:
MC1455/D



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MC1455, MC1455B, NCV1455B
MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.)
Rating
Power Supply Voltage
Discharge Current (Pin 7)
Power Dissipation (Package Limitation)
P1 Suffix, Plastic Package
Derate above TA = +25°C
D Suffix, Plastic Package
Derate above TA = +25°C
Operating Temperature Range (Ambient)
MC1455B
MC1455
NCV1455B
Maximum Operating Die Junction Temperature
Storage Temperature Range
Symbol
VCC
I7
PD
PD
TA
TJ
Tstg
ELECTRICAL CHARACTERISTICS (TA = +25°C, VCC = +5.0 V to +15 V, unless otherwise noted.)
Characteristics
Symbol
Min
Typ
Operating Supply Voltage Range
Supply Current
VCC = 5.0 V, RL = R
VCC = 15 V, RL = R, Low State (Note 1)
Timing Error (R = 1.0 kW to 100 kW) (Note 2)
Initial Accuracy C = 0.1 mF
Drift with Temperature
Drift with Supply Voltage
VCC
ICC
4.5
3.0
10
1.0
50
0.1
Threshold Voltage/Supply Voltage
Trigger Voltage
VCC = 15 V
VCC = 5.0 V
Trigger Current
Reset Voltage
Reset Current
Threshold Current (Note 3)
Discharge Leakage Current (Pin 7)
Control Voltage Level
VCC = 15 V
VCC = 5.0 V
Output Voltage Low
ISink = 10 mA (VCC = 15 V)
ISink = 50 mA (VCC = 15 V)
ISink = 100 mA (VCC = 15 V)
ISink = 200 mA (VCC = 15 V)
ISink = 8.0 mA (VCC = 5.0 V)
ISink = 5.0 mA (VCC = 5.0 V)
Output Voltage High
VCC = 15 V (ISource = 200 mA)
VCC = 15 V (ISource = 100 mA)
VCC = 5.0 V (ISource = 100 mA)
Rise Time Differential Output
Fall Time Differential Output
Vth/VCC
VT
IT
VR
IR
Ith
Idischg
VCL
VOL
VOH
tr
tf
0.4
9.0
2.6
12.75
2.75
2/3
5.0
1.67
0.5
0.7
0.1
0.1
10
3.33
0.1
0.4
2.0
2.5
0.25
12.5
13.3
3.3
100
100
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 MW .
4. Tlow = 0°C for MC1455, Tlow = −40°C for MC1455B, NCV1455B
Thigh = +70°C for MC1455, Thigh = +85°C for MC1455B, Thigh = +125°C for NCV1455B
5. NCV prefix is for Automotive and other applications requiring site and change control.
Value
+18
200
625
5.0
625
160
−40 to +85
0 to +70
−40 to +125
+150
−65 to +150
Max
16
6.0
15
1.0
0.25
100
11
4.0
0.25
0.75
2.5
0.35
Unit
Vdc
mA
mW
mW/°C
mW
°C/W
°C
°C
°C
Unit
V
mA
%
PPM/°C
%/V
V
mA
V
mA
mA
nA
V
V
V
ns
ns
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MC1455, MC1455B, NCV1455B
150
125
100
75 0°C
50 25°C
70°C
25
0
0 0.1
0.2 0.3
0.4
VT (min), MINIMUM TRIGGER VOLTAGE (x VCC = Vdc)
Figure 4. Trigger Pulse Width
10
8.0
6.0
4.0
2.0
0
5.0
25°C
10
VCC, SUPPLY VOLTAGE (Vdc)
Figure 5. Supply Current
15
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.0
25°C
5.0 V VCC 15 V
2.0 5.0 10 20
50
ISource (mA)
Figure 6. High Output Voltage
100
10
1.0 25°C
0.1
0.01
1.0
2.0
5.0 10
20
50
ISink (mA)
Figure 7. Low Output Voltage
@ VCC = 5.0 Vdc
100
10 10
1.0
25°C
1.0
0.1 0.1 25°C
0.01
1.0
2.0
5.0 10
20
50
ISink (mA)
Figure 8. Low Output Voltage
@ VCC = 10 Vdc
100
0.01
1.0
2.0
5.0 10
20
50
ISink (mA)
Figure 9. Low Output Voltage
@ VCC = 15 Vdc
100
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MC1455, MC1455B, NCV1455B
1.015
1.010
1.005
1.000
0.995
0.990
0.985
0
5.0 10 15
VCC, SUPPLY VOLTAGE (Vdc)
20
Figure 10. Delay Time versus Supply Voltage
1.015
1.010
1.005
1.000
0.995
0.990
0.985
− 75 − 50 − 25 0 25 50 75
TA, AMBIENT TEMPERATURE (°C)
100 125
Figure 11. Delay Time versus Temperature
300
250
200
150 0°C
100
70°C
50
25°C
0
0
0.1 0.2
0.3
0.4
VT (min), MINIMUM TRIGGER VOLTAGE (x VCC = Vdc)
Figure 12. Propagation Delay
versus Trigger Voltage
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