MAX846AC Ver la hoja de datos (PDF) - Maxim Integrated
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MAX846AC Datasheet PDF : 12 Pages
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Cost-Saving Multichemistry
Battery-Charger System
ELECTRICAL CHARACTERISTICS (Note 1)
(VDCIN = 10V, ON = VL, IVL = IVSET = 0mA, VCS- = VCS+ = 10V, VBATT = 4.5V, VOFFV = VCELL2 = 0V, TA = -40°C to +85°C, unless
otherwise noted.)
PARAMETER
VL REGULATOR
DCIN Supply Current
Output Voltage
PWROK Trip Level
VL Undervoltage-Lockout Level
REFERENCE
Output Voltage
Output Resistance
CURRENT-SENSE AMPLIFIER
Transconductance
Output Offset Current
CS+, CS- Off Input Current
VOLTAGE LOOP
CONDITIONS
VDCIN = 20V, IDRV = IVL = 0mA
0mA < IVL < 20mA, 3.7V < VDCIN < 20V
Rising VL edge, 2% hysteresis
Measured at VSET, IVSET = 0mA, VON = 0V
VISET = 1.7V, VCS+ - VCS- = 165mV
VCS+ = 4V
VON = 0V, VCS+ = VCS- = 10V
MIN TYP MAX UNITS
3.259
2.9
2.5
5
mA
3.341
V
3.1
V
3.0
V
-0.7% 1.650 +0.7% V
-2%
20
+2% kΩ
0.93
1.07 mA/V
5
µA
10
µA
Voltage-Loop Set Point
BATT Off Input Current
CURRENT LOOP
Current-Loop Set Point
Overcurrent Trip Level
VVSET = 1.650V,
VDRV = 10V
VCELL2
=
0V,
IDMRVA=X814m6AA,
VVSET = 1.650V, VCELL2 = VL, IDRV = 1mA,
VDRV = 10V
-0.35% 4.2 +0.35%
V
-0.35% 8.4 +0.35%
VBATT = 10V, ON = GND, CELL2 = GND or VL
1
µA
IDRV = 5mA, VDRV = 10V
When VISET exceeds this voltage, DRV current
is disabled.
1.625
1.86
1.675
V
2.14
V
DRIVER
DRV Sink Current
DRV Off Current
VDRV = 3V
VDRV = 20V, ON = GND
20
mA
100
µA
Note 1: Specifications to -40°C are guaranteed by design and not production tested.
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