MAX846A View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX846A Datasheet PDF : 12 Pages
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Cost-Saving Multichemistry
Battery-Charger System
ABSOLUTE MAXIMUM RATINGS
DCIN, DRV, CS+, CS-, BATT to GND........................-0.3V, +21V
PGND to GND.....................................................................±0.3V
VL to GND......................................................................-0.3V, 7V
IPWROK ................................................................................10mA
PWROK, ISET, CCI, CCV, OFFV, VSET,
CELL2, ON to GND ............................................-0.3V, VL + 0.3V
CS+ to CS-..........................................................................±0.3V
VL Short to GND.........................................................Continuous
IDRV ...................................................................................100mA
Continuous Power Dissipation (TA = +70°C)
QSOP (derate 8.3mW/°C above +70°C) ........................667mW
Operating Temperature Range
MAX846AEEE ....................................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+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
(VDCIN = 10V, ON = VL, IVL = IVSET = 0mA, VCS- = VCS+ = 10V, VBATT = 4.5V, VOFFV = VCELL2 = 0V, TA = 0°C to +85°C, unless
otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VL REGULATOR
DCIN Supply Current
Operating Range
VDCIN = 20V, IDRV = IVL = 0mA
5
mA
3.7
20.0
V
Output Voltage
Short-Circuit Current Limit
0mA < IVL < 20mA, 3.7V < VDCIN < 20V
VL = GND
3.267 3.305 3.333
V
50
mA
PWROK Trip Level
Rising VL edge, 2% hysteresis
2.9
3.0
3.1
V
VL Undervoltage-Lockout Level
2.5
2.9
V
REFERENCE
Output Voltage
Output Resistance
CURRENT-SENSE AMPLIFIER
Measured at VSET, IVSET = 0mA, VON = 0V
-0.5% 1.650 +0.5% V
-2%
20
+2% kΩ
Transconductance
Output Offset Current
Input Common-Mode Range
VISET = 1.7V, VCS+ - VCS- = 165mV
VCS+ = 4V
Measured at VCS-, VCS+ - VCS- = 165mV
0.95
1
1.05 mA/V
3
µA
2.1
20.0
V
Maximum Differential Input Voltage
VCS- = VISET = 2.1V,
CSA transconductance >0.9mA/V
225
mV
CS- Lockout Voltage
CS+, CS- Input Current
CS+, CS- Off Input Current
When VCS- is less than this voltage, DRV is
disabled.
VCS+ = 20V, VCS+ -VCS- = 165mV
DCIN = VL = ON = GND
1.9
2.1
V
250
µA
0.01
10
µA
2 _______________________________________________________________________________________
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