MAX1898EUB42-T Maxim Integrated Products, MAX1898EUB42-T Datasheet - Page 4

• Manufacturer Part Number: MAX1898EUB42-T
• Description: Battery Management Linear Charger for 1-Cell Li+ Battery
• Manufacturer: Maxim Integrated Products

Linear Charger for Single-Cell Li+ Battery
ELECTRICAL CHARACTERISTICS (continued)
(V
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
4
BATT Input Current
IN, CS Input Current
VOLTAGE LOOP
Voltage-Loop Set Point
DRV Sink Current
Maximum Voltage (V
V
Percentage of Voltage-Loop Set
Point)
CURRENT LOOP
Internal Current-Sense Resistance
RMS Charge Current
Current-Sense Amplifier Gain, I
to I
Current-Sense Amplifier Gain, I
to I
Current-Loop Regulation Set Point
CHG Trip Threshold (As a
Percentage of Full Load Current)
Timer Accuracy
CHG Output Low Current
CHG Output High Leakage
CHG Blink Rate
V
IN
BATT
BATT
_______________________________________________________________________________________
IN
IN
= 8V, V
Fast Charge
Prequal
Restart Threshold (As a
Prequal Voltage Threshold
BATT
PARAMETER
= 4V, EN/OK = open, RSET = 2.8kΩ, RSTRT = GND, T
IN
- V
DRV
)
SET
SET
Done, RSTRT = GND, V
MAX1898EUB42 and 4.0V for MAX1898EUB41
Done, RSTRT = open, V
MAX1898EUB42 and 4.0V for MAX1898EUB41
EN/OK = GND
V
V
V
MAX1898EUB42
MAX1898EUB41
Timers running
V
V
RSTRT = GND
IN to CS pin-to-pin resistance
I
I
V
RSET = 2.8kΩ, V
performance
I
I
C
V
V
Fault state (50% duty cycle), CT = 100nF
CS
CS
LOAD
LOAD
IN
IN
IN
DRV
BATT
BATT
CT
CHG
CHG
= V
= 12V, (I
= 500mA, V
= 50mA, V
= 4V
= 100nF for 2 hours, 54 minutes nominal
= V
= 1V
falling, RSET = 2.8kΩ
rising, RSET = 2.8kΩ
= 12V
= 3.5V
= 2V
BATT
IN
- 1V, V
= 4V (I
IN
+ I
ISET
SET
BATT
CS
BATT
IN
= 0.14V,
), done, RSTRT = open
= 1.4V
CONDITIONS
+ I
= 3.5V, closed-loop
BATT
CS
= 3.5V
BATT
)
MAX1898EUB42
MAX1898EUB41
= 4.1V for
= 4.1V for
A
= -40°C to +85°C, unless otherwise noted.)
4.137
4.038
2.394
2.337
MIN
0.93
440
3.5
0.6
-13
3.5
92
50
15
17
3
1
4.263
4.162
2.646
2.583
MAX
1.07
1.50
200
+13
100
560
1.4
10
10
10
10
98
25
27
5
7
7
1
2
UNITS
mA/A
mA/A
mΩ
mA
mA
mA
mA
µA
µA
µA
Hz
%
%
%
V
V
V
A