LTC2943
ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
(Notes 1, 2)
+
Supply Voltage (SENSE )........................... –0.3V to 24V
TOP VIEW
SCL, SDA, ALCC Voltage .............................. –0.3V to 6V
SENSE ...............(–0.3V + V
Operating Ambient Temperature Range
LTC2943C ............................................... 0°C to 70°C
LTC2943I ............................................–40°C to 8±°C
Storage Temperature Range .................. –6±°C to 1±0°C
–
+
+
) to (V
+ 0.3V)
+
–
SENSE
SENSE
SENSE
GND
GND
SCL
1
2
3
4
8
7
6
5
SENSE
GND
9
ALCC
SDA
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T
= 1±0°C, θ = 100°C/W
JA
JMAX
EXPOSED PAD (PIN 9) PCB GND CONNECTION OPTIONAL
ORDER INFORMATION
LEAD FREE FINISH
LTC2943CDD#PBF
LTC2943IDD#PBF
TAPE AND REEL
PART MARKING*
LGCS
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2943CDD#TRPBF
LTC2943IDD#TRPBF
8-Lead (3mm × 3mm) Plastic DFN
8-Lead (3mm × 3mm) Plastic DFN
0°C to 70°C
LGCS
–40°C to 8±°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/
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
+
V
Supply Voltage
3.6
20
V
SENSE
l
l
l
I
Supply Current (Note 3)
Battery Gas Gauge On, ADC Sleep
Battery Gas Gauge On, ADC On
Shutdown
80
6±0
1±
120
7±0
2±
µA
µA
µA
SUPPLY
+
I
Pin Current (Note 3)
Battery Gas Gauge On, ADC Sleep
Battery Gas Gauge On, ADC On
Shutdown
80
±00
1±
µA
µA
µA
SENSE
SENSE
–
I
Pin Current (Note 3)
Battery Gas Gauge On, ADC Sleep
Battery Gas Gauge On, ADC On
Shutdown
1
1±0
1
µA
µA
µA
+
l
l
V
Undervoltage Lockout Threshold
V
Falling
3.0
3.3
3.6
V
UVLO
SENSE
Coulomb Counter
+
–
V
Sense Voltage Differential Input
Range
V
– V
±±0
mV
kΩ
SENSE
SENSE
SENSE
R
Differential Input Resistance Across
400
IDR
+
–
SENSE and SENSE (Note 8)
q
Charge LSB (Note 4)
Prescaler M = 4096(Default), R
= ±0mΩ
0.340
mAh
LSB
SENSE
2943fa
2
For more information www.linear.com/LTC2943
Linear [ Linear ]
