MAX17085B Datasheet, PDF (10/37 Pages) Maxim Integrated Products – Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO Regulators

Integrated Charger, Dual Main Step-Down
Controllers, and Dual LDO Regulators
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, no load on LDO5, LDO3, OUT5, OUT3, and REF, VCC = 5V, ON3 = ON5 = VCC, VDCIN = VLXC = VCSSP = VCSSN
= 19V, VBSTC - VLXC = 5V, VBATT = VCSIP = VCSIN = 12.6V, VVCTL = VISET = 1.8V, CELLS = open, TA = -40°C to +85°C, unless
otherwise noted.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
DLC Gate-Driver On-Resistance
RDLC
High state, IDLC = 10mA
Low state, IDLC = -10mA
CHARGER SMPS
DHC Off-Time K Factor
VDCIN = 19V, VBATT = 10V
30
Cycle-by-Cycle Current-Limit
Sense Voltage
VCSIP - VCSIN
120
CHARGE-VOLTAGE REGULATION
CELLS = open, VCTL = REF, 2 cells
-0.5
Battery-Regulation Voltage
Accuracy
VBATT CELLS = GND, VCTL = REF, 3 cells
-0.5
CELLS = LDO3, VCTL = REF, 4 cells
-0.5
VCTL Range
0
CELLS 3-Cell Threshold
CELLS 2-Cell Level
CELLS = open
1.9
CELLS 4-Cell Threshold
2.8
CHARGE-CURRENT REGULATION
ISET Range
Charging current, analog setting
0.0
Full-Charge-Current Accuracy
(CSIP to CSIN)
VCSI
VISET = REF, or
PWM = 100%
97
VBATT = 4V to 16.8V
VISET = 0.6 x REF,
or PWM = 60%
57.6
TYP
MAX
6
6
UNITS
I
40
ns/V
130
mV
+0.5
+0.5
%
+0.5
2.4
V
0.8
V
2.3
V
V
REF
V
103
mV
62.4
Trickle Charge-Current Accuracy
Charge-Current Gain Error
Charge-Current Offset Error
CSIP/CSIN/BATT Input
Voltage Range
ISET Power-Down Mode
Threshold
ISET PWM Threshold
ISET Frequency
VCSI
VISET-SDN
fISET
VBATT = 4V to 16.8V, VISET = REF/36 or
PWM = 2.7%
Based on VISET = REF and
VISET = 0.6 x REF
ISET falling
ISET rising
ISET rising
ISET falling
1.2
-1.5
-1.4
0
20
32
0.8
0.128
4.3
mV
+1.5
%
+1.4 mV
24
V
32
mV
46
2.4
V
500 kHz
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