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参数资料
| 型号： | LTC2942IDCB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/18页 |
| 文件大小： | 0K |
| 描述： | IC FUEL/GAS GAUGE LI-ION 6DFN |
| 标准包装： | 1 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN-EP（2x3） |
| 包装： | 标准包装 |
| 配用： | DC1496B-B-ND - BOARD EVAL LTC2942 |
| 其它名称： | LTC2942IDCB#TRMPBFDKR |
LTC2942
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
t HD,DATO
PARAMETER
Data Hold Time Output
CONDITIONS
l
MIN
0.3
TYP
MAX
0.9
UNITS
μs
t OF
Data Output Fall Time
(Notes 7, 8)
l
20 + 0.1 ? C B
300
ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive, all voltages are referenced to
GND unless otherwise specified
Note 3: I SUPPLY = I SENSE+ + I SENSE–
Note 4: The equivalent charge of an LSB in the accumulated charge
register depends on the value of R SENSE and the setting of the internal
prescaling factor M:
Note 5: Deviation of q LSB from its nominal value.
Note 6: The quantization step of the 14-bit ADC in voltage mode and
10-bit ADC in temperature mode is not to be mistaken with the LSB of the
combined 16-bit voltage registers (I, J) and 16-bit temperature registers
(M, N).
Note 7: C B = Capacitance of one bus line in pF (10pF ≤ C B ≤ 400pF). See
Voltage and Temperature Registers section for more information.
Note 8: Guaranteed by design, not subject to test.
50m ? M
q LSB = 0.085mAh ?
?
R SENSE 128
See Choosing R SENSE and Choosing Coulomb Counter Prescaler M section
for more information. 1mAh = 3.6C (coulombs).
TIMING DIAGRAM
t of
SDA
t SU, DAT
t HD, DATO,
t HD, DATI
t SU, STA
t HD, STA
t SU, STO
t BUF
SCL
t HD, STA
2942 F01
START
CONDITION
REPEATED START
CONDITION
STOP
CONDITION
START
CONDITION
Figure 1. Definition of Timing on I 2 C Bus
2942fa
4
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