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參數(shù)資料
| 型號： | bq2052 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Gas Gauge IC for Lithium Primary Cells(Gas Gauge 芯片（用于鋰電池）) |
| 中文描述： | 氣體計(jì)IC（電量監(jiān)測計(jì)芯片（用于鋰電池），鋰原電池） |
| 文件頁數(shù)： | 10/18頁 |
| 文件大小： | 161K |
| 代理商： | BQ2052 |
Primary Status Flags Register (FLGS1)
The FLGS1 register (address = 01h) contains the pri-
mary bq2052 flags.
The
initialized
flag (INIT) is asserted to a 1 or 0 when-
ever the bq2052 is initialized either by the application of
Vcc or by a serial port command. INIT = 1 signifies that
the device has been reset with FNAC set to PFC. INIT = 0
signifies that the battery has been reset with FNAC = 0.
The INIT location is:
FLGS1 Bits
7
6
5
4
3
2
1
0
INIT
-
-
-
-
-
-
-
where INIT is:
0
The bq2052 initialized with FNAC = 0.
1
The bq2052 initialized with FNAC = PFC.
The CPIN but reflects the state of the CP output. If set,
the CP output is high impedance. If cleared, the CP out-
put is asserted low. The CP output is an open drain out-
put and requires an external pull-up register.
The CPIN location is
FLGS1 Bits
4
CPIN
7
-
6
-
5
-
3
-
2
-
1
-
0
-
Where CPIN is:
0
CP is low
1
CP is high impedance
The bq2052 sets the
first end-of-discharge warning
flag (EDV1) when the battery voltage VSB is less than
the EDV1 threshold VTS. The flag warns the user that
the battery is almost empty. The bq2052 modulates the
first segment pin, SEG1, at a 4Hz rate if the 4 or 5 seg-
ment display mode is enabled and EDV1 is asserted.
The EDV1 threshold has a default value of 0.76V but
can be adjusted by writing the VTS register .
The EDV1 location is
FLGS1 Bits
7
6
5
4
3
2
1
0
-
-
-
-
-
-
EDV1
-
Where EDV1 is:
0
V
SB
≥
V
TS
1
V
SB
< V
TS
The bq2052 sets the
final end-of-discharge warning
flag (EDVF) when VSB is less than the EDVF threshold.
The EDVF threshold is set 100mV below the EDV1
threshold. The EDVF flag is used to warn the system or
user that battery power is at a failure condition. The
bq2052 turns all segment drivers off upon EDVF detec-
tion.
The EDVF location is:
FLGS1 Bits
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
EDVF
Where EDVF is:
0
V
SB
≥
(V
TS
-100mV)
1
V
SB
< (V
TS
-100mV)
Temperature Register (TEMP)
The 8-bit TEMP register (address=02h) contains the
battery temperature in degrees C. The bq2052 contains
an internal temperature sensor.
used to set discharge efficiency factors. The temperature
register contents are store in 2’s complement form and
represent the temperature
±
5
°
C.
The temperature is
Nominal Available Capacity Register (NAC)
The NAC register contains the uncompensated remaining
capacity of the battery.The bq2052 determines NAC as
NAC = FNAC - DCR
Battery Identification Register (BATID)
The 8-bit BATID register (address=04h) is a general
purpose memory register that can be used to uniquely
identify a battery pack. The bq2052 maintains the
BATID contents as long as VRBI is greater than 2V. The
contents of this register have no effect on the operation
of the bq2052.
Current Scale Registers (VSRL/VSRH)
The VSRH high-byte register and the VSRL low-byte
register are used to calculate the average signal across
the SR and VSS pins. This register pair is updated ev-
ery 5.625 seconds. VSRH and VSRL form a 16-bit value
representing the average current over this time.
battery pack current can be calculated by:
|I(mA)| =(VSRH
The
256 + VSRL)
(R )
S
10
bq2052
Preliminary
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2052EVM-001 | 功能描述:電源管理IC開發(fā)工具 BQ2052 Eval Kit for Primary Lithium 15V RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| BQ2052SN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Gas Gauge IC for Lithium Primary Cells |
| BQ2052SNA515 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC |
| BQ2052SN-A515 | 功能描述:電池管理 Primary Lithium Gas Gauge 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 |
| BQ2052SN-A515G4 | 功能描述:電池管理 Prim Lith Gas Gauge 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 |
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