LTC2942CDCB datasheet(2/16 Pages) LINER

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LTC2942

2942f

Supply Voltage (SENSE+)............................. –0.3V to 6V

SCL, SDA, AL/CC ......................................... –0.3V to 6V

SENSE– .................................. –0.3V to (VSENSE+ + 0.3V)

Operating Ambient Temperature Range

LTC2942C ................................................ 0°C to 70°C

LTC2942I.............................................. –40°C to 85°C

Storage Temperature Range................... –65°C to 150°C

(Notes 1, 2)

TOP VIEW

SENSE–

AL/CC

SDA

SENSE+

GND

SCL

DCB PACKAGE

6-LEAD (2mm × 3mm) PLASTIC DFN

GND

TJMAX = 150°C, θJA = 120°C/W

EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB OR LEFT FLOATING

ORDER INFORMATION

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS The l denotes the speciﬁcations which apply over the full operating

temperature range, otherwise speciﬁcations are at TA = 25°C. (Note 2)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Requirements

VSENSE+

Supply Voltage

2.7

5.5

ISUPPLY

Supply Current (Note 3)

Battery Gas Gauge On, ADC Sleep

100

μA

Battery Gas Gauge On, ADC Converting Voltage

300

350

μA

Battery Gas Gauge On, ADC Converting Temperature

350

420

μA

Shutdown

2.5

μA

Shutdown, VSENSE+ ≤ 4.2V

μA

VUVLO

Undervoltage Lockout Threshold

VSENSE+ Falling

2.5

2.6

2.7

Coulomb Counter

VSENSE

Sense Voltage Differential Input

Range

VSENSE+ – VSENSE–

±50

RIDR

Differential Input Resistance,

Across SENSE+ and SENSE–

(Note 8)

400

kΩ

qLSB

Charge LSB (Note 4)

Prescaler M = 128 (Default), RSENSE = 50mΩ

0.085

mAh

TCE

Total Charge Error (Note 5)

10mV ≤ |VSENSE| ≤ 50mV DC

±1

10mV ≤ |VSENSE| ≤ 50mV DC, VSENSE + ≤ 4.2V

±1.5

1mV ≤ |VSENSE| < 50mV DC (Note 8)

±3.5

Lead Free Finish

TAPE AND REEL (MINI)

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC2942CDCB#TRMPBF

LTC2942CDCB#TRPBF

LDVN

6-Lead (2mm × 3mm) Plastic DFN

0°C to 70°C

LTC2942IDCB#TRMPBF

LTC2942IDCB#TRPBF

LDVN

6-Lead (2mm × 3mm) Plastic DFN

–40°C to 85°C

TRM = 500 pieces. *Temperature grades are identiﬁed by a label on the shipping container.

Consult LTC Marketing for parts speciﬁed with wider operating temperature ranges.

Consult LTC Marketing for information on lead based ﬁnish parts.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁcations, go to: http://www.linear.com/tapeandreel/

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