MAX17085GTL datasheet(10/38 Pages) MAXIM

Part #	MAX17085GTL

Description	Integrated Charger, Dual Main Step-Down Controllers, and Dual LDO Regulators

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Manufacturer	MAXIM [Maxim Integrated Products]

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10 / 38 page

Integrated Charger, Dual Main Step-Down

Controllers, and Dual LDO Regulators

10 _____________________________________________________________________________________

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

TYP

MAX

UNITS

DLC Gate-Driver On-Resistance

RDLC

High state, IDLC = 10mA

6

I

Low state, IDLC = -10mA

6

CHARGER SMPS

DHC Off-Time K Factor

VDCIN = 19V, VBATT = 10V

30

40

ns/V

Cycle-by-Cycle Current-Limit

Sense Voltage

VCSIP - VCSIN

120

130

mV

CHARGE-VOLTAGE REGULATION

Battery-Regulation Voltage

Accuracy

VBATT

CELLS = open, VCTL = REF, 2 cells

-0.5

+0.5

%

CELLS = GND, VCTL = REF, 3 cells

-0.5

+0.5

CELLS = LDO3, VCTL = REF, 4 cells

-0.5

+0.5

VCTL Range

0

2.4

V

CELLS 3-Cell Threshold

0.8

V

CELLS 2-Cell Level

CELLS = open

1.9

2.3

V

CELLS 4-Cell Threshold

2.8

V

CHARGE-CURRENT REGULATION

ISET Range

Charging current, analog setting

0.0

REF

V

Full-Charge-Current Accuracy

(CSIP to CSIN)

VCSI

VBATT = 4V to 16.8V

VISET = VREF, or

PWM = 100%

97

103

mV

VISET = 0.6 x VREF,

or PWM = 60%

57.6

62.4

Trickle Charge-Current Accuracy

VCSI

VBATT = 4V to 16.8V, VISET = VREF/36 or

PWM = 2.7%

1.2

4.3

mV

Charge-Current Gain Error

-1.5

+1.5

%

Charge-Current Offset Error

Based on VISET = VREF and

VISET = 0.6 x VREF

-1.4

+1.4

mV

CSIP/CSIN/BATT Input

Voltage Range

0

24

V

ISET Power-Down Mode

Threshold

VISET-SDN

ISET falling

20

32

mV

ISET rising

32

46

ISET PWM Threshold

ISET rising

2.4

V

ISET falling

0.8

ISET Frequency

fISET

0.128

500

kHz

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