- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385186 > bq2052 (Benchmark Technology Group) Gas Gauge IC for Lithium Primary Cells(Gas Gauge 芯片（用于鋰電池）) PDF資料下載
參數(shù)資料
| 型號(hào)： | 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(cè)計(jì)芯片（用于鋰電池），鋰原電池） |
| 文件頁(yè)數(shù)： | 11/18頁(yè) |
| 文件大?。?/td> | 161K |
| 代理商： | BQ2052 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)當(dāng)前第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)
where
R
S
= sense resistor value in
.
VSRH = high-byte value of current scale
VSRL = low-byte value of current scale
ProgramPinPull-DownRegister(PPD)
The PPD register (address = 07h) contains the pull-down
programming pin information for the bq2052. The pro-
gram pins, PROG
1–6
, have a corresponding PPD register
location, PPD
1–6
. A given location is set if the bq2052
detects a pull-down resistor on its corresponding seg-
ment driver. For example, if PROG
1
and PROG
4
have
pull-down resistors,the contents of PPD are xx001001.
Program Pin Pull-Up Register (PPU)
The PPU register (address = 08h) contains the pull-up
programming pin information for the bq2052. The seg-
ment drivers, PROG
1–6
, have a corresponding PPU reg-
ister location, PPU
1–6
.
A given location is set if a
pull-up resistor has been detected on its corresponding
segment driver.
For example, if PROG
3
and PROG
5
have pull-up resistors, the contents of PPU are
xx010100.
Battery Voltage (VSB)
The battery voltage register (address = 0bh) stored the
voltage detected on the SB pin. The bq2052 updates the
VSB register approximately once per second with the
present value of the battery voltage.
V
SB
= 1.2V
VSB
256
Voltage Threshold Register (VTS)
The end-of-discharge threshold voltages (EDV1 and
EDVF) can be set using the VTS register. The VTS reg-
ister sets the EDV1 trip point. EDVF is set 100mV below
EDV1.
The default value in the VTS register is A2h,
representing EDV1 = 0.76V and EDVF = 0.66V.
EDV1 = 1.2V*
VTS
256
.
Relative CAC Register (RCAC)
The RCAC register (address = 0dh) provides the relative
battery state-of-charge by dividing CAC by FNAC.
RCAC varies from 0 to 7dh representing relative
state-of-charge from 0 to 125%.
Compensated Available Capacity (CAC)
The CAC registers (address = 0eh–0fh) contain the
available capacity compensated for discharge rate and
temperature. The CAC value is also used in calculating
the LED display pattern relative to PFC.
Program Full Count (PFC)
The PFC register (address = 10h) contains the user se-
lected programmed full count (PFC) setting.
Full Nominal Available Capacity (FNAC)
The FNAC (address = 11h) contains the full capacity
reference of the battery.
Maximum Discharge Rate (MAXRATE)
The MAXRATE register (address = 12h) stores the high-
est discharge rate detected by the bq2052. The bq2052
uses the MAXRATE value to calculate the efficiency
compensation factors.
Discharge Rate (RATE)
The RATE register (address = 13h) provides the current
discharge rate of the battery.
Discharge Count Registers (DCRH/DCRL)
The DCRH high-byte register and the DCRL low-byte
register are the main gas gauging registers for the
bq2052. The DCR registers are incremented during dis-
charge.
Writing to the DCR registers affects the available charge
counts and, therefore, affects the bq2052 gas gauge oper-
ation.
Display
The bq2052 can directly display remaining capacity in-
formation using low-power LEDs. The bq2052 uses the
CAC value in relation to FNAC as the basis for the dis-
play activity. The bq2052 displays the battery’s remain-
ing capacity in either of three modes selected with pro-
gram pin PROG
5
.
The display is activated using the
DISP input. When DISP is connected to V
CC
, the SEG
outputs are OFF. When pulled low, the segment outputs
turn ON for a period of 4
±
0.5s, depending on the se-
lected mode.
The segment outputs are modulated as two banks, with
segments 1, 3, and 5 alternating with segments 2 and 4.
The segment outputs are modulated at approximately
100Hz with each segment bank active for 30% of the pe-
riod. In incremental and bar graph modes, SEG1 blinks
at a 4Hz rate whenever VSB is below VEDV1 (EDV1
flag bit set in FLGS1), indicating a low-battery condi-
tion. When VSB is below VEDVF (EDVF flag bit set in
FLGS1) the display outputs are disabled in all modes.
11
Preliminary
bq2052
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| bq2060 | SBS v1.1-Compliant Gas Gauge IC(Gas Gauge芯片) |
| bq2092 | Gas Gauge IC with SMBus-Like Interface(Gas Gauge芯片（帶SMBus 接口）) |
| bq2201 | SRAM Nonvolatile Controller Unit(靜態(tài)RAM非易失性控制器單元) |
| bq2202 | SRAM Nonvolatile Controller With Reset(靜態(tài)RAM非易失性控制器單元(帶復(fù)位）) |
| bq2502 | Integrated Backup Unit(完整的后備單元) |
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(kāi)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(píng)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 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。