參數(shù)資料
型號: bq2040
廠商: Benchmark Technology Group
英文描述: Gas Gauge IC With SMBus Interface(氣體Gauge芯片(帶SMBus 接口))
中文描述: 氣體計IC,帶有SMBus接口(氣體計芯片(帶的SMBus接口))
文件頁數(shù): 27/32頁
文件大?。?/td> 189K
代理商: BQ2040
27
bq2040
Absolute Maximum Ratings
Symbol
Parameter
Minimum
Maximum
Unit
Notes
V
CC
All other pins
REF
Relative to V
SS
Relative to V
SS
Relative to V
SS
-0.3
-0.3
-0.3
+7.0
+7.0
+8.5
V
V
V
Current limited by R11 (see Figure 1)
Minimum 100
series resistor should
be used to protect SR in case of a
shorted battery.
V
SR
Relative to V
SS
-0.3
+7.0
V
T
OPR
Operating tempera-
ture
0
+70
°C
Commercial
Note:
Permanent device damage may occur if
Absolute Maximum Ratings
are exceeded. Functional opera-
tion should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Expo-
sure to conditions beyond the operational limits for extended periods of time may affect device reliability.
DC Voltage Thresholds
(TA= TOPR; V = 3.0 to 5.5V)
Symbol
Parameter
Minimum
Typical
Maximum
Unit
Notes
E
VSB
Battery voltage error relative to SB
-50mV
-
50mV
V
See note
Note:
The accuracy of the voltage measurement may be improved by adjusting the battery voltage offset and
gain, stored in external EEPROM. For best operation, V
CC
should be 1.5V greater than V
SB
.
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