M
Low-Power, Single-/Dual-Level Battery Monitors
with Hysteresis and Integrated μP Reset
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(V
BATT
= 1.2V to 5.5V, V
CC
= 1.2V to 5.5V, T
A
= -40
°
C to +85
°
C, unless otherwise specified. Typical values are at T
A
= +25
°
C.) (Note1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
CC
≥
1.53V, I
SOURCE
= 100μA,
RESET
deasserted
0.8 x V
CC
RESET
Output High
(Push-Pull)
V
OH
V
CC
≥
2.55V, I
SOURCE
= 500μA,
RESET
deasserted
0.8 x V
CC
V
V
CC
≥
1.0V, I
SINK
= 50μA,
RESET
asserted
V
CC
≥
1.2V, I
SINK
= 100μA,
RESET
asserted
V
CC
≥
2.12V, I
SINK
= 1.2mA,
RESET
asserted
0.3
0.3
RESET
Output Low
V
OL
0.3
V
RESET
Output Leakage Current
(Open Drain)
RESET
deasserted
500
nA
Typical Operating Characteristics
(V
BATT
= 1.2V to 5.5V, V
CC
= 1.2V to 5.5V, unless otherwise specified. Typical values are at T
A
= +25
°
C.)
SUPPLY CURRENT vs. TEMPERATURE
V
CC
= 3.3V, V
BATT
= 3.6V
M
TEMPERATURE (
°
C)
TOTAL
I
BATT
S
μ
A
60
40
20
0
-20
1
2
3
4
0
-40
80
I
CC
NORMALIZED LBO TIMEOUT PERIOD
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
N
60
40
20
0
-20
0.95
1.00
1.05
1.10
0.90
-40
80
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE
M
TEMPERATURE (
°
C)
N
60
40
20
0
-20
0.990
0.985
1.000
0.995
1.005
1.010
1.015
0.980
-40
80
Note 1:
Production testing done at T
A
= +25
°
C; limits over temperature guaranteed by design only.
Note 2:
The device is powered up by the highest voltage between V
BATT
and V
CC
.
Note 3:
MR
input ignores falling input pulses, which occur within the
MR
debounce period (t
DEB
) after a valid
MR
reset assertion.
This prevents invalid reset assertion due to switch bounce.