Data Sheet

ICM7555, ICM7556
FN2867 Rev 1.00 Page 4 of 13
June 28, 2016
Reset Voltage V
RST
V
DD
= 2V to 15V 0.4 1.0 0.2 1.2 V
Reset Current I
RST
V
DD
= 15V 10 50 nA
Discharge Leakage I
DIS
V
DD
= 15V 10 50 nA
Output Voltage V
OL
V
DD
= 15V, I
SINK
= 20mA 0.4 1.0 1.25 V
V
DD
= 5V, I
SINK
= 3.2mA 0.2 0.4 0.5 V
V
OH
V
DD
= 15V, I
SOURCE
= 0.8mA 14.3 14.6 14.2 V
V
DD
= 5V, I
SOURCE
= 0.8mA 4.0 4.3 3.8 V
Discharge Output Voltage V
DIS
V
DD
= 5V, I
SINK
= 15mA 0.2 0.4 0.6 V
V
DD
= 15V, I
SINK
= 15mA 0.4 V
Supply Voltage (Note 7
)V
DD
Functional Operation 2.0 18.0 3.0 16.0 V
Output Rise Time (Note 7
)t
R
R
L
= 10M, C
L
= 10pF, V
DD
= 5V 75 ns
Output Fall Time (Note 7)t
F
R
L
= 10M, C
L
= 10pF, V
DD
= 5V 75 ns
Oscillator Frequency
(Note 7
)
f
MAX
V
DD
= 5V, R
A
= 470Ω, R
B
= 270Ω,
C = 200pF
1MHz
NOTES:
7. These parameters are based upon characterization data and are not tested.
8. Applies only to military temperature range product (M suffix).
Electrical Specifications Applies to ICM7555 and ICM7556, unless otherwise specified. (Continued)
PARAMETER SYMBOL TEST CONDITIONS
T
A
= +25°C
(Note 8
)
-55°C TO+125°C
UNITMIN TYP MAX MIN TYP MAX
Functional Diagram
FIGURE 1. FUNCTIONAL DIAGRAM
+
-
THRESHOLD
CONTROL
VOLTAGE
6
5
3
1
+
-
TRIGGER
2
COMPARATOR
R
GND
B
COMPARATOR
A
R
V
DD
8
OUTPUT
7
1
n
DISCHARGE
OUTPUT
DRIVERS
FLIP-FLOP
RESET
4
R
NOTE: This functional diagram reduces the circuitry down to its simplest equivalent components. Tie down unused inputs.
TRUTH TABLE
THRESHOLD VOLTAGE TRIGGER
VOLTAGE RESET OUTPUT DISCHARGE SWITCH
Don’t Care Don’t Care Low Low On
>
2
/
3
(V+) >
1
/
3
(V+) High Low On
<
2
/
3
(V+) >
1
/
3
(V+) High Stable Stable
Don’t Care <
1
/
3
(V+) High High Off
NOTE: RESET
will dominate all other inputs: TRIGGER will dominate over THRESHOLD.