LTC2942-1I View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC2942-1I
Linear Technology
'LTC2942-1I' PDF : 16 Pages View PDF
LTC2942-1
Absolute Maximum Ratings
(Notes 1, 2)
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
Pin Configuration
SENSE+ 1
GND 2
SCL 3
TOP VIEW
7
6 SENSE–
5 AL/CC
4 SDA
DCB PACKAGE
6-LEAD (2mm s 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 160°C/W (Note 9)
EXPOSED PAD (PIN 7): DO NOT CONNECT
Order Information
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
LTC2942CDCB-1#TRMPBF LTC2942CDCB-1#TRPBF LDYR
6-Lead (2mm × 3mm) Plastic DFN
LTC2942IDCB-1#TRMPBF LTC2942IDCB-1#TRPBF LDYR
6-Lead (2mm × 3mm) Plastic DFN
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/
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
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+
ISUPPLY
Supply Voltage
Supply Current (Note 3)
Battery Gas Gauge On, ADC Sleep
2.7
5.5
V
70
100
µA
l
120
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
VUVLO
Undervoltage Lockout Threshold
Coulomb Counter
Shutdown, VSENSE+ ≤ 4.2V
VSENSE+ Falling
1
µA
l
2.5
2.6
2.7
V
ISENSE–
RSENSE
RPP
Sense Current
Internal Sense Resistance
Pin-to-Pin Resistance from
SENSE+ to SENSE–
(Note 8)
l
±1
A
50
mΩ
50
74
100
mΩ
qLSB
Charge LSB (Note 4)
Prescaler M = 128 (Default)
TCE
Total Charge Error (Note 5)
0.2A ≤ |ISENSE–| ≤ 1A DC
0.2A ≤ |ISENSE–| ≤ 1A DC, 0°C to 70°C
0.02A ≤ |ISENSE–| ≤ 1A DC (Note 8)
l
0.085
±1
±1.8
±2.8
mAh
%
%
%
29421f
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