CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and
result in failures not covered by warranty.
NOTES:
4. Jedec Class II pulse conditions and failure criterion used. Level B exceptions are: Using a max positive pulse of 8.35V on all pins except X1 and
X2, Using a max positive pulse of 2.75V on X1 and X2, and using a max negative pulse of -1V for all pins.
5.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
6. For
θ
JC
, the “case temp” location is taken at the package top center.
DC Operating Characteristics
Unless otherwise noted, V
DD
= +2.7V to +5.5V, T
A
= -40°C to +85°C, Typical values are at T
A
= +25°C
and V
DD
= 3.3V.
Boldface limits apply over the operating temperature range, -40°C to +85°C.
CONDITIONS
MIN
(Note 16)
2.7
1.8
TYP
MAX
(Note 16)
5.5
5.5
UNIT
V
V
NOTES
SYMBOL
V
DD
V
BAT
PARAMETER
Main Power Supply
Backup Power Supply
Electrical Specifications
SYMBOL
I
DD1
I
DD2
I
DD3
I
BAT
Boldface limits apply over the operating temperature range, -40°C to +85°C.
CONDITIONS
V
DD
= 2.7V
V
DD
= 5.5V
V
DD
= 2.7V
V
DD
= 5.5V
V
DD
= V
SDA
= V
SCL
= 2.7V
V
DD
= V
SDA
= V
SCL
= 5.5V
V
BAT
= 1.8V,
V
DD
= V
SDA
= V
SCL
= V
RESET
= 0V
V
BAT
= 3.0V,
V
DD
= V
SDA
= V
SCL
= V
RESET
= 0V
800
850
MIN
(Note 16)
TYP
MAX
(Note 16)
500
800
2.5
3.5
10
20
1000
1200
100
1.8
2.2
30
50
10
2.6
UNIT
µA
µA
mA
mA
µA
µA
nA
nA
nA
V
mV
mV
V/ms
11
11, 13
11, 13
12
7, 10, 11
9
7, 8, 9
NOTES
7, 8, 9
PARAMETER
Supply Current with I
2
C Active
Supply Current for Non-Volatile
Programming
Supply Current for Main
Timekeeping (Low Power Mode)
Battery Supply Current
I
BATLKG
V
TRIP
V
TRIPHYS
V
BATHYS
V
DD SR-
V
OL
Battery Input Leakage
V
BAT
Mode Threshold
V
TRIP
Hysteresis
V
BAT
Hysteresis
V
DD
Negative Slew Rate
Output Low Voltage
V
DD
= 5.5V, V
BAT
= 1.8V
IRQ/F
OUT
OUTPUT
V
DD
= 5.5V
I
OL
= 3mA
V
DD
= 2.7V
I
OL
= 1mA
V
OH
Output High Voltage
V
DD
= 5.5V
I
OL
= -1.0mA
V
DD
= 2.7V
I
OL
= -0.4mA
V
DD
x 0.7
V
DD
x 0.7
0.3*V
DD
0.3*V
DD
V
V
V
V
4
FN8233.9
November 30, 2010
ISL12028, ISL12028A
Electrical Specifications
SYMBOL
RESET OUTPUT
I
LO
V
OL
Output Leakage Current
Output Low Voltage
V
DD
= 5.5V
V
OUT
= 5.5V
V
DD
= 5.5V
I
OL
= 3mA
V
DD
= 2.7V
I
OL
= 1mA
100
400
0.4
0.4
nA
V
V
Boldface limits apply over the operating temperature range, -40°C to +85°C. (Continued)
CONDITIONS
MIN
(Note 16)
TYP
MAX
(Note 16)
UNIT
NOTES
PARAMETER
Watchdog Timer/Low Voltage Reset Parameters
Boldface limits apply over the operating temperature range, -40°C to +85°C.
SYMBOL
t
RPD
t
PURST
V
RVALID
V
RESET
PARAMETER
V
DD
Detect to RESET LOW
Power-Up Reset Time-Out Delay
Minimum V
DD
for Valid RESET
Output
ISL12028-4.5A Reset Voltage
Level
ISL12028 Reset Voltage Level
ISL12028-3 Reset Voltage Level
ISL12028-2.7A Reset Voltage
Level
ISL12028-2.7 Reset Voltage Level
t
WDO
Watchdog Timer Period
32.768kHz crystal between X1 and
X2
100
1.0
4.59
4.33
3.04
2.87
2.58
1.70
725
225
t
RST
t
RSP
Watchdog Timer Reset Time-Out
Delay
I
2
C Interface Minimum Restart
Time
32.768kHz crystal between X1 and
X2
225
1.2
4.64
4.38
3.09
2.92
2.63
1.75
750
250
250
4.69
4.43
3.14
2.97
2.68
1.801
775
275
275
CONDITIONS
MIN
(Note 16)
TYP
(Note 5)
500
250
400
MAX
(Note 16)
UNITS
ns
ms
V
V
V
V
V
V
s
ms
ms
ms
µs
NOTES
13
EEPROM SPECIFICATIONS
EEPROM Endurance
EEPROM Retention
Temperature
≤ +75°C
>2,000,000
50
Cycles
Years
Serial Interface (I
2
C) Specifications
Boldface limits apply over the operating temperature range, -40°C to +85°C.
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