MAX1898 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1898 Datasheet PDF : 12 Pages
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Linear Charger for Single-Cell Li+ Battery
ABSOLUTE MAXIMUM RATINGS
IN, DRV, CS, CHG to GND .....................................-0.3V to +14V
BATT, EN, ISET, RSTRT, CT to GND ........................-0.3V to +6V
DRV to IN................................................................-14V to +0.3V
IN to CS Current ....................................................................±2A
DRV Continuous Current ..................................................±10mA
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 5.6mW/°C above +70°C) ..........444mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) ....................………..+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VIN = 8V, VBATT = 4V, EN/OK = open, RSET = 2.8kΩ, RSTRT = GND, TA = 0°C to +85°C, unless otherwise noted. Typical values are
at TA = +25°C.)
PARAMETER
Supply Voltage Range
Input OK Trip Point, IN Rising
(VIN - VBATT)
Input OK Trip Point, IN Falling
(VIN - VBATT)
VIN Input OK Trip Point, IN Rising
VIN Input OK Trip Point, IN Falling
EN/OK Sink Current (When Input
Power Not OK)
EN/OK Source Current (When
Input Power OK)
EN/OK Logic Input High
EN/OK Logic Input Low
BATT Input Current
IN, CS Input Current
VOLTAGE LOOP
Voltage-Loop Set Point
Voltage-Loop Gain
VBATT Prequal Voltage Threshold
DRV Sink Current
DRV Output Resistance
CONDITIONS
VIN = 3.9V, VBATT = 4V,
VEN/OK = 0.8V
VEN/OK = 2V
4.5V ≤ VIN ≤ 12V
4.5V ≤ VIN ≤ 12V
Done, RSTRT = GND, VBATT = 4.1V for
MAX1898EUB42 and 4.0V for MAX1898EUB41
Done, RSTRT = open, VBATT = 4.1V for
MAX1898EUB42 and 4.0V for MAX1898EUB41
EN/OK = GND
VIN = 4V
VIN = VBATT = 4V (IIN + ICS)
VIN = 12V, (IIN + ICS), done, RSTRT = open
MAX1898EUB42
MAX1898EUB41
∆VDRV/∆VBATT
Timers running
MAX1898EUB42
MAX1898EUB41
VDRV = VIN - 1V, VBATT = 3.5V
MIN TYP MAX UNITS
4.5
12
V
45
70
100
mV
30
55
85
mV
4.0
4.25
4.5
V
3.9
4.15
4.4
V
100
µA
5
10
20
µA
2
V
0.6
V
40
100
4
10
µA
4
10
3
10
2
10
µA
2
5
mA
4.168 4.2 4.232
V
4.069 4.1 4.131
51
dB
2.394 2.520 2.646
V
2.337 2.460 2.583
4
mA
470
Ω
2 _______________________________________________________________________________________
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