LTC2959

2

Rev. A

For more information LTC2959

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VDD – GND)........................ –0.3 to 65V

CM Sensing Voltage (SENSEP, SENSEN) ..... –0.3 to 65V

DM Sensing Voltage |SENSEP – SENSEN| ...............0.3V

SCL, SDA, GPIO Voltage ................................ –0.3 to 6V

Operating Ambient Temperature Range

LTC2959I .................................................–40 to 85°C

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

(Note 1)

TOP VIEW

11

DDB PACKAGE

10-LEAD (3mm × 2mm) PLASTIC DFN

TJMAX = 125°C θJA = 43°C/W

VDD

SENSEP

CFP

CFN

SENSEN

GND

VREG

GPIO

SDA

SCL

6

8

7

9

10

5

4

2

3

1

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL (MINI)

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC2959IDDB#TRPBF

LTC2959IDDB#TRMPBF

LHGK

10-Lead (3mm × 2mm) Plastic DFN

–40°C to 85°C

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

Contact the factory for parts specified with wider operating temperature ranges.

Contact the factory for information on lead based finish parts.

Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Power Requirements

VDD

Supply Voltage

l

1.8

60

V

ISUPPLY

Supply Current (Note 3)

Coulomb Counter On, ADC Off, |VSENSE| < 1mV

Coulomb Counter On, ADC Off, |VSENSE| > 1mV

Coulomb Counter On, ADC On

Coulomb Counter Not Counting, ADC Off

l

l

l

0.8

1

400

2

8

800

2

µA

µA

µA

µA

RSENSEN

Resistance between SENSEN and GND When Voltage ADC Measures SENSEN

Otherwise

400

1

kΩ

GΩ

VUVLO

Undervoltage Lockout Threshold

VDD Falling

l

1.35

1.45

1.55

V

tSTARTUP

Startup Time

Fast Ramp Raises VDD Above 1.8V

8

ms

Coulomb Counter

VSENSE

Sense Voltage Differential Input Range VSENSEP – VSENSEN

l

±50

mV

TCE

Total Charge Error (Note 4)

10mV ≤ |VSENSE| ≤ 50mV Continuously

1mV ≤ |VSENSE| ≤ 10mV Continuously

10mV ≤ |VSENSE| ≤ 50mV Pulses with

tPULSE > 1ms

l

l

0.1

0.2

1

±1

±2

%

%

%

VOS

Offset Voltage

l

±1

±10

µV

RIDR

Differential Input Resistance Across

SENSEP and SENSEN

800

kΩ

QLSB

Charge LSB (Note 5)

RSENSE = 50mΩ

533

nAh

EDB

Deadband Inaccuracy

Deadband = 20µV

±10

%

The l denotes the specifications which apply over the full operating

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