參數(shù)資料
型號(hào)： bq2945
廠商： Benchmark Technology Group
英文描述： Gas Gauge IC with SMBus Interface(Gas Gauge芯片（帶SMBus 接口）)
中文描述： 氣體計(jì)IC，帶有SMBus接口（電量監(jiān)測(cè)計(jì)芯片（帶的SMBus接口））
文件頁數(shù)： 27/32頁
文件大?。?/td> 256K
代理商： BQ2945
27
bq2945
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 R1 (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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
BQ294502 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries
BQ294502DRVR 功能描述:電池管理 Overvltg Prot Device RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
BQ294502DRVT 功能描述:電池管理 Overvltg Prot Device RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel
BQ294502EVM-033 功能描述:電源管理IC開發(fā)工具 bq294502 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
BQ294504 制造商:TI 制造商全稱:Texas Instruments 功能描述:Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries
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