LTC3586 datasheet(4/36 Pages) LINER

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LTC3586/LTC3586-1

3586fb

elecTrical characTerisTics The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, VIN1 = VIN2 = VIN3 = VIN4 = VOUT3 = 3.8V,

VOUT4 = 5V, RPROG = 1k, RCLPROG = 3.01k, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

RON_CHG

Battery Charger Power FET

On-Resistance (Between VOUT and BAT)

0.18

TLIM

Junction Temperature in Constant

Temperature Mode

110

°C

NTC

VCOLD

Cold Temperature Fault Threshold

Voltage

Rising Threshold

Hysteresis

75.0

76.5

1.5

78.0

%VBUS

VHOT

Hot Temperature Fault Threshold

Voltage

Falling Threshold

Hysteresis

33.4

34.9

1.73

36.4

%VBUS

VDIS

NTC Disable Threshold Voltage

Falling Threshold

Hysteresis

0.7

1.7

2.7

%VBUS

INTC

NTC Leakage Current

VNTC = VBUS = 5V

–50

Ideal Diode

VFWD

Forward Voltage

VBUS = 0V, IVOUT = 10mA

IVOUT = 10mA

RDROPOUT

Internal Diode On-Resistance, Dropout VBUS = 0V

0.18

IMAX_DIODE

Internal Diode Current Limit

1.6

Always On 3.3V Supply

VLDO3V3

Regulated Output Voltage

0mA < ILDO3V3 < 20mA

3.1

3.3

3.5

RCL_LDO3V3

Closed-Loop Output Resistance

ROL_LDO3V3

Dropout Output Resistance

Logic Input (EN1, EN2, EN3, EN4, MODE, ILIM0, ILIM1, FAULT)

VIL

Logic Low Input Voltage

0.4

VIH

Logic High Input Voltage

1.2

IPD

Pull-Down Current

µA

FAULT Output

VFAULT

FAULT Pin Output Low Voltage

IFAULT = 5mA

100

FAULT Delay

FBx Voltage Threshold

for FAULT (x = 1, 2, 3, 4)

0.736

Switching Regulators 1, 2, 3 and 4

VIN1,2,3,4

Input Supply Voltage

2.7

5.5

VOUTUVLO

VOUT UVLO—VOUT Falling

VOUT UVLO—VOUT Rising

VIN1,2,3,4 Connected to VOUT Through

Low Impedance. Switching Regulators

are Disabled in UVLO

2.5

2.6

2.8

2.9

fOSC

Oscillator Frequency

1.8

2.25

2.7

MHz

IFB1,2,3,4

FBx Input Current

VFB1,2,3,4 = 0.85V

–50

VFB1,2,3,4

VFBx Servo Voltage

0.78

0.80

0.82

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