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:
1.
JA
is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
2. For theta
JC
the "case temp." location is the center of the exposed metal pad on the package underside.
Electrical Specifications
PARAMETER
POWER-ON RESET
Rising USB/CRDL Threshold
Falling USB/CRDL Threshold
VIN-BAT OFFSET VOLTAGE
Rising Edge
Falling Edge
STANDBY CURRENT
BAT Pin Sink Current
CRDL Pin Supply Current
USB Pin Supply Current
CRDL/USB Pin Supply Current
VOLTAGE REGULATION
Output Voltage
Output Voltage
CRDL PMOS On-Resistance
USB PMOS On-Resistance
CHARGE CURRENT
(Note 4)
ICDL Pin Output Voltage
Typical Values Are Tested at USB = CRDL = 5V and ambient temperature is at +25°C, Unless Otherwise Noted.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
3.4
2.7
3.9
3.2
4.2
3.5
V
V
V
OS
V
OS
V
BAT
= 4.0V, use CHG pin with output current
to indicate the comparator output (Note 3)
-
20
150
80
250
-
mV
mV
I
STANDBY
EN = HIGH or both inputs are floating
I
CRDL
I
USB
EN = LOW or floating
EN = HIGH
-
-
-
-
0.05
150
150
0.55
0.5
220
220
0.8
A
A
A
mA
V
CH
V
CH
Load = 10mA
Load = 10mA (T
J
= +25°C)
V
BAT
= 3.8V, I
CHARGER
= 0.3A, (T
J
= +25°C)
V
BAT
= 3.8V, I
CHARGER
= 0.3A, (T
J
= +25°C)
4.158
4.174
200
200
4.2
4.2
600
600
4.242
4.226
850
850
V
V
m
m
V
ICDL
V
BAT
= 3.8V
1.19
520
16
46.5
332
66
1.22
550
18
55
380
80
1.25
580
20
63.5
410
91
V
mA
%
mA
mA
mA
CRDL Input Constant Charge Current
CRDL Input Trickle Charge Current
CRDL and USB End-of-Charge Threshold
USB Input Constant Charge Current
USB Input Trickle Charge Current
I
CHARGE
R
ICDL
= 12.4kV
BAT
: 2.7V to 3.8V
I
TRICKLE
I
MIN
R
ICDL
= 12.4k, V
BAT
= 2.2V
Given as a % of the CRDL I
CHARGE
R
IMIN
= 10.0k
I
CHARGE
V
BAT
: 2.7V to 3.8V
I
TRICKLE
V
BAT
= 2.2V
FN6687 Rev 0.00
February 13, 2009
Page 4 of 11
ISL9228
Electrical Specifications
PARAMETER
Typical Values Are Tested at USB = CRDL = 5V and ambient temperature is at +25°C, Unless Otherwise Noted.
All Maximum and Minimum Values Are Guaranteed Under the Recommended Operating Conditions
(Continued)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
PRECONDITIONING CHARGE THRESHOLD
Preconditioning Charge Threshold Voltage
RECHARGE THRESHOLD
Recharge Threshold Voltage
BATTERY REMOVAL DETECTION
Maximum External Resistor
VF Pin Internal Pull Up Resistance
INTERNAL TEMPERATURE MONITORING
Current Foldback Threshold
LOGIC INPUT AND OUTPUT
EN and VF Pins Logic Input High
EN and VF Pins Logic Input Low
EN Pin Internal Pull Down Resistance
CHG/PPR Sink Current
NOTES:
3. The 4.0V V
BAT
is selected so that the CHG output can be used as the indication for the offset comparator output indication. If the V
BAT
is lower
than the POR threshold, no output pin can be used for indication.
4. The charge current can be affected by the thermal foldback function if the IC under the test setup cannot dissipate the heat.
Pin Voltage = 0.8V
V
IH
V
IL
1.3
-
350
10
-
-
600
-
-
0.4
850
-
V
V
k
mA
T
FOLD
-
125
-
°C
R
ID
V
IL
= 0.4V
100
700
-
1000
-
1300
k
k
V
RCH
3.8
3.9
4.0
V
V
MIN
2.5
2.6
2.7
V
Typical Operating Performance
The test conditions for the Typical Operating Performance are: V
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