MAX17085B datasheet(2/38 Pages) MAXIM

2 / 38 page

Integrated Charger, Dual Main Step-Down

Controllers, and Dual LDO Regulators

2 ______________________________________________________________________________________

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.

TON, DCIN, CSSP, BATT, CSIP to GND,

LX_ to GND ........................................................-0.3V to +28V

CSIP to CSIN, CSSP to CSSN..............................-0.3V to +0.3V

LDO3, LDO5, VCC to GND (Note 2).......................-0.3V to +6V

ISET, VCTL, ACIN, ACOK to GND ..........................-0.3V to +6V

OUT3, OUT5 to GND (Note 2) ................................-0.3V to +6V

ON3, ON5, PGOOD to GND ...................................-0.3V to +6V

ILIM3, ILIM5, SKIP, REF to GND.............. -0.3V to (VCC + 0.3V)

GND to EP............................................................-0.3V to +0.3V

DL_ to EP...............................................-0.3V to (VLDO5 + 0.3V)

BST_ to GND.........................................................-0.3V to +34V

BST_ to LDO5........................................................-0.3V to +28V

DH3 to LX3............................................ -0.3V to (VBST3 + 0.3V)

BST3 to LX3.............................................................-0.3V to +6V

DH5 to LX5............................................ -0.3V to (VBST5 + 0.3V)

BST5 to LX5.............................................................-0.3V to +6V

DHC to LXC...........................................-0.3V to (VBSTC + 0.3V)

PDSL to GND .......................................................-0.3V to + 36V

BSTC to LXC ...........................................................-0.3V to +6V

CELLS, CC, IINP to GND ......................-0.3V to (VLDO5 + 0.3V)

LDO_ Short Circuit to GND ....................................... Momentary

LDO5 Current (Internal Regulator) Continuous............. +100mA

LDO3 Current (Internal Regulator) Continuous............... +50mA

LDO_ Current (Switched Over) Continuous.................. +200mA

Continuous Power Dissipation (TA = +70NC)

40-Pin Thin QFN (derate 34.5mW/NC above +70NC) 2857mW

Operating Temperature Range.......................... -40NC to +85NC

Junction Temperature .....................................................+150NC

Storage Temperature Range............................ -65NC to +150NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

ELECTRICAL CHARACTERISTICS

(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 = 0°C to +85°C, unless oth-

erwise noted. Typical values are at TA = +25°C.)

ABSOLUTE MAXIMUM RATINGS (Note 1)

Note 1: Absolute Maximum Ratings valid using 20MHz bandwidth limit.

Note 2: LDO5 has a weak leakage to VCC when LDO5 is more than 0.5V above VCC. OUT5 has a weak leakage to VCC when

OUT5 is more than 0.5V above VCC.

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT SUPPLIES

Adapter Present Quiescent

Current

IDCIN + ICSSP + ICSSN,

ON3 = ON5 = SKIP = VCC,

VOUT3 = 3.5V, VOUT5 = 5.3V

Charging

enabled

Charging

disabled

1.5

2.5

Adapter Absent Quiescent

Current

IDCIN + ICSSP + ICSSN,

ON3 = ON5 = SKIP = VCC,

VOUT3 = 3.5V, VOUT5 = 5.3V

VISET = 2.4V,

IINP ON

1.5

2.5

ISET = GND

1.2

2.2

CSSN Input Current

VCSSP = VCSSN = 24V, TA = +25°C

0.1

BATT + CSIP + CSIN + LXC

Input Current

VBATT = 16.8V, adapter absent, TA = +25°C

VBATT = 2V to 19V, adapter present

200

650

DCIN Input Current

IDCIN

ON3 = ON5 = SKIP = VCC, charger

disabled; VOUT3 = 3.5V, VOUT5 = 5.3V

0.1

0.2

DCIN Standby Supply Current

VDCIN = 5V to 24V, ON3 = ON5 = GND

130

270

VCC Supply Current

ICC

ON3 = ON5 = SKIP = VCC, charger

disabled; VOUT3 = 3.5V, VOUT5 = 5.3V

1.0

1.5

DCIN Input Voltage Range

Note: LDO5 is NOT guaranteed to be in

regulation until DCIN is above 6V.

4.5

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