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参数资料
| 型号： | DS2741N+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR/ACCUMULATOR 14-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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： | 2.5 V ~ 4.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Current Monitor and Accumulator with
Integrated Sense Resistor
TEMPERATURE SENSOR CHARACTERISTICS
(V CC = +2.5V to +4.5V, T A = -20°C to +70°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Temperature Error
AC ELECTRICAL CHARACTERISTICS: I 2 C INTERFACE
(2.5V ≤ V CC ≤ 4.5V, T A = -20°C to +70°C, timing referenced to V IL(MAX) and V IH(MIN) . See Figure 4.)
±5
°C
PARAMETER
SCL Clock Frequency
SYMBOL
f SCL
(Note 5)
CONDITIONS
MIN
0
TYP
MAX
400
UNITS
kHz
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition
Low Period of SCL
High Period of SCL
t BUF
t HD:STA
t LOW
t HIGH
1.3
0.6
1.3
0.6
μs
μs
μs
μs
Data Hold Time
Data Setup Time
START Setup Time
t HD:DAT
t SU:DAT
t SU:STA
0
100
0.6
0.9
μs
ns
μs
SDA and SCL Rise Time
SDA and SCL Fall Time
STOP Setup Time
SDA and SCL Capacitive
Loading
t R
t F
t SU:STO
C B
(Note 6)
(Note 6)
(Note 6)
20 +
0.1C B
20 +
0.1C B
0.6
300
300
400
ns
ns
μs
pF
Note 1: All voltages are referenced to GND. Currents entering the IC are specified positive and currents exiting the IC are negative.
Note 2: Compensation of the internal sense resistor value for initial tolerance and temperature coefficient of -20°C to +70°C can
reduce the maximum reportable magnitude to 2.5A.
Note 3: Current sampling ceases for 2.5ms every 144ms to allow the ADC to measure temperature.
Note 4: Typical value for t ERR1 is specified at 3.6V and +25°C, max value is specified for 0°C to +50°C. Max value for t ERR2 is
specified for -20°C to +70°C.
Note 5: Interface timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with standard-mode
I 2 C timing.
Note 6: C B —Total capacitance of one bus line in pF; timing referenced to 0.1 x V CC and 0.9 x V CC .
_______________________________________________________________________________________
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