LTC2942-1
2
29421f
Supply Voltage (SENSE
+
) ............................. –0.3V to 6V
SCL, SDA, AL/CC ......................................... –0.3V to 6V
Sense Current (into SENSE
–
) ....................................±2A
Operating Ambient Temperature Range
LTC2942-1C
............................................. 0°C to 70°C
LTC2942-1I
.......................................... –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 s 3mm) PLASTIC DFN
4
5
7
6
3
2
1
T
JMAX
= 150°C, θ
JA
= 160°C/W (Note 9)
EXPOSED PAD (PIN 7): DO NOT CONNECT
orDer inFormaTion
pin conFiguraTionabsoluTe maximum raTings
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Requirements
V
SENSE
+
Supply Voltage 2.7 5.5 V
I
SUPPLY
Supply Current (Note 3) Battery Gas Gauge On, ADC Sleep
l
70 100
120
µA
µA
Battery Gas Gauge On, ADC Converting Voltage
l
300 400 µA
Battery Gas Gauge On, ADC Converting Temperature
l
350 450 µA
Shutdown
l
2.5 µA
Shutdown, V
SENSE
+
≤ 4.2V 1 µA
V
UVLO
Undervoltage Lockout Threshold V
SENSE
+
Falling
l
2.5 2.6 2.7 V
Coulomb Counter
I
SENSE
–
Sense Current
l
±1 A
R
SENSE
Internal Sense Resistance 50 mΩ
R
PP
Pin-to-Pin Resistance from
SENSE
+
to SENSE
–
(Note 8) 50 74 100 mΩ
q
LSB
Charge LSB (Note 4) Prescaler M = 128 (Default) 0.085 mAh
TCE Total Charge Error (Note 5) 0.2A ≤ |I
SENSE
–
| ≤ 1A DC ±1 %
0.2A ≤ |I
SENSE
–
| ≤ 1A DC, 0°C to 70°C ±1.8 %
0.02A ≤ |I
SENSE
–
| ≤ 1A DC (Note 8)
l
±2.8 %
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC2942CDCB-1#TRMPBF LTC2942CDCB-1#TRPBF LDYR
6-Lead (2mm × 3mm) Plastic DFN
0°C to 70°C
LTC2942IDCB-1#TRMPBF LTC2942IDCB-1#TRPBF LDYR
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/