LTC4088EDE-PBF Просмотр технического описания (PDF) - Linear Technology

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LTC4088EDE-PBF

High Efficiency Battery Charger/USB Power Manager

Linear Technology 

LTC4088

Electrical Characteristics The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, RCLPROG = 2.94k, unless otherwise noted.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX UNITS

RON_CHG

TLIM

Battery Charger Power FET

On-Resistance (Between VOUT and BAT)

Junction Temperature in Constant

Temperature Mode

IBAT = 200mA

0.18

Ω

110

°C

NTC

VCOLD

VHOT

VDIS

Cold Temperature Fault Threshold

Voltage

Hot Temperature Fault Threshold

Voltage

NTC Disable Threshold Voltage

Rising Threshold

Hysteresis

Falling Threshold

Hysteresis

Falling Threshold

Hysteresis

75.0

76.5

78.0 %VBUS

1.5

%VBUS

33.4

34.9

36.4 %VBUS

1.5

%VBUS

0.7

1.7

2.7 %VBUS

50

mV

INTC

Ideal Diode

NTC Leakage Current

VNTC = VBUS = 5V

–50

50

nA

VFWD

RDROPOUT

IMAX

Forward Voltage Detection

Internal Diode On Resistance, Dropout

Diode Current Limit

IOUT = 10mA

VBUS = 0V, IOUT = 10mA

IOUT = 200mA

15

mV

2

mV

0.18

Ω

2

A

Always On 3.3V Supply

VLDO3V3

ROL3V3

RCL3V3

Regulated Output Voltage

Open-Loop Output Resistance

Closed-Loop Output Resistance

0mA < ILDO3V3 < 25mA

3.1

3.3

3.4

V

25

Ω

3.6

Ω

Logic (D0, D1, D2)

VIL

Input Low Voltage

0.4

V

VIH

Input High Voltage

IPD

Static Pull-Down Current

VPIN = 1V

1.2

V

2

µA

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LTC4088E is guaranteed to meet performance specifications

from 0°C to 85°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

Note 3: The LTC4088E includes overtemperature protection that is

intended to protect the device during momentary overload conditions.

Junction temperature will exceed 125°C when overtemperature protection

is active. Continuous operation above the specified maximum operating

junction temperature may impair device reliability.

Note 4: Total input current is the sum of quiescent current, IBUSQ, and

measured current given by VCLPROG/RCLPROG • (hCLPROG + 1)

4088fb

4

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