December 1997
10-5
MIC1555/1557
Absolute Maximum Ratings
Supply Voltage (V
S
) ....................................................+22V
Threshold Voltage (V
THR
, V
T/T
) ..................................+22V
Trigger Voltage (V
TRG
, V
T/T
) .......................................+22V
Lead Temperature (soldering 10sec.) ....................... 300
°
C
Micrel
10
Electrical Characteristics
T
A
= 25
°
C,
bold
values indicate –40
°
C
≤
T
A
≤
+85
°
C; unless noted.
Parameter
Condition
Min
Typ
Max
Units
Supply current
V
S
= 5V
V
S
= 15V
R
A
= 10k, C =0.1
μ
F, V
S
= 5V
R
A
= 10k, C =0.1
μ
F, V
S
= 5V
V
S
= 5V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
=10V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
= 15V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
= 5V to 15V, Note 1
R
A
= R
B
= 10k, C = 0.1
μ
F, V
S
= 5V
R
A
= R
B
= 10k, C = 0.1
μ
F, V
S
= 5V
R
T
= 1k, C
T
= 47pF, V
s
= 8V
V
S
= 5V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
=10V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
= 15V, –55
≤
T
A
≤
+125
°
C, Note 1
V
S
= 5V to 15V, Note 1
V
S
= 15V
V
S
= 15V
V
S
= 15V
V
S
= 15V
V
S
= 15V
V
S
= 15V, I
SINK
= 20mA
V
S
= 5V, I
SINK
= 3.2mA
V
S
= 15V, I
SOURCE
= 20mA
V
S
= 5V, I
SOURCE
= 3.2mA
functional operation, Note 1
240
300
μ
A
350
400
μ
A
Monostable Timing Accuracy
2
%
858
1161
μ
s
Monostable Drift over Temp
100
ppm/
°
C
150
ppm/
°
C
200
ppm/
°
C
Monostable Drift over Supply
0.5
%/V
Astable Timing Accuracy
2
%
1717
2323
μ
s
Maximum Astable Frequency
5
MHz
Astable Drift over Temp
100
ppm/
°
C
150
ppm/
°
C
200
ppm/
°
C
Astable Drift over Supply
0.5
%/V
Threshold Voltage
61
67
72
%V
S
%V
S
nA
Trigger Voltage
27
32
37
Trigger Current
50
Threshold Current
50
nA
Chip Select
61
67
72
%V
S
V
Output Voltage Drop
0.3
1.25
0.08
0.5
V
Output Voltage Drop
14.1
14.7
V
3.8
4.7
V
Supply Voltage
2.7
18
V
Output Rise Time
R
L
= 10M, C
L
= 10pF, V
S
= 5V, Note 1
R
L
= 10M, C
L
= 10pF, V
S
= 5V, Note 1
15
ns
Output Fall Time
15
ns
General Note:
Devices are ESD protected, however handling precautions are recommended.
Note 1:
Not tested.
Operating Ratings
Supply Voltage (V
S
) ..................................... +2.7V to +18V
Ambient Temperature Range (T
A
) ............. –40
°
C to +85
°
C
Package Thermal Resistance
(θ
JA
)...................................................................220
°
C/W
(
θ
JC
) ..................................................................130
°
C/W