LTC2941 Linear Technology, LTC2941 Datasheet - Page 2

• Manufacturer Part Number: LTC2941
• Description: Battery Gas Gauge
• Manufacturer: Linear Technology

ABSOLUTE MAXIMUM RATINGS
LTC2941
(Notes 1, 2)
Supply Voltage (SENSE
SCL, SDA, AL/CC ......................................... –0.3V to 6V
SENSE
Operating Ambient Temperature Range
Storage Temperature Range ..................... –65°C to 150°
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI)
LTC2941CDCB#TRMPBF
LTC2941IDCB#TRMPBF
TRM = 500 pieces. *Temperature grades are identifi ed by a label on the shipping container.
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
SYMBOL
Power Requirements
V
I
V
Coulomb Counter
V
q
TCE
V
2
temperature range, otherwise specifi cations are at T
SUPPLY
LSB
SENSE +
UVLO
SENSE
bat
LTC2941C ................................................ 0°C to 70°C
LTC2941I.............................................. –40°C to 85°C
Alert
–
.................................. –0.3V to (V
PARAMETER
Supply Voltage
Supply Current (Note 3)
Undervoltage Lockout Threshold
Sense Voltage Differential Input Range
Differential Input Resistance, Across
SENSE
Charge LSB (Note 4)
Total Charge Error (Note 5)
V
bat
Alert Threshold
+
and SENSE
TAPE AND REEL
LTC2941CDCB#TRPBF
LTC2941IDCB#TRPBF
+
) ............................. –0.3V to 6V
–
(Note 7)
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SENSE +
CONDITIONS
Device On
Shutdown
Shutdown, V
V
V
Prescaler M = 128 (Default),
R
10mV ≤ |V
10mV ≤ |V
1mV ≤ |V
V
V
V
PART MARKING*
LFKQ
LFKQ
SENSE +
SENSE +
SENSE
SENSE +
SENSE +
SENSE +
http://www.linear.com/tapeandreel/
A
= 25°C. (Note 2)
= 50mΩ
– V
Falling
Falling, B[7:6] = 01
Falling, B[7:6] = 10
Falling, B[7:6] = 11
SENSE
+ 0.3V)
SENSE
SENSE
SENSE –
The
SENSE +
| ≤ 50mV DC (Note 7)
| ≤ 50mV DC
| ≤ 50mV, DC V
l
denotes the specifi cations which apply over the full operating
≤ 4.2V
PIN CONFIGURATION
PACKAGE DESCRIPTION
6-Lead (2mm × 3mm) Plastic DFN
6-Lead (2mm × 3mm) Plastic DFN
EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB OR LEFT FLOATING
SENSE +
≤ 4.2V
SENSE
GND
SCL
6-LEAD (2mm × 3mm) PLASTIC DFN
+
l
l
l
l
l
l
l
l
l
T
1
2
3
JMAX
= 150°C, θ
DCB PACKAGE
2.75
2.85
2.95
TOP VIEW
MIN
2.7
2.5
GND
7
JA
= 120°C/W
0.085
TYP
400
2.6
2.8
2.9
70
3
6
5
4
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
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SENSE
AL/CC
SDA
–
MAX
±1.5
±3.5
2.85
2.95
3.05
100
±50
5.5
2.5
2.7
±1
1
UNITS
mAh
2941f
mV
kΩ
μA
μA
μA
%
%
%
V
V
V
V
V