- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385186 > bq2050 (Benchmark Technology Group) Lithium Ion Power Gauge IC(鋰離子電源Gause 芯片) PDF資料下載
參數(shù)資料
| 型號(hào)： | bq2050 |
| 廠商： | Benchmark Technology Group |
| 英文描述： | Lithium Ion Power Gauge IC(鋰離子電源Gause 芯片) |
| 中文描述： | 鋰離子動(dòng)力計(jì)IC（鋰離子電源高斯芯片） |
| 文件頁(yè)數(shù)： | 6/21頁(yè) |
| 文件大?。?/td> | 235K |
| 代理商： | BQ2050 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)當(dāng)前第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)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)第19頁(yè)第20頁(yè)第21頁(yè)
2.
Programmed Full Count (PFC) or initial bat-
tery capacity:
The initial LMD and gas gauge rate values are pro-
grammed by using PROG
1
–PROG
4
. The bq2050 is
configured for a given application by selecting a
PFC value from Table 2. The correct PFC may be
determined by multiplying the rated battery capac-
ity in mAh by the sense resistor value:
Battery capacity (mAh)*sense resistor (
) =
PFC (mVh)
Selecting a PFC slightly less than the rated capac-
ity provides a conservative capacity reference until
the bq2050 “l(fā)earns”a new capacity reference.
Example: Selecting a PFC Value
Given:
Sense resistor = 0.05
Number of cells = 2
Capacity = 1000mAh,Li-Ion battery,coke-anode
Current range = 50mA to 1A
Relative display mode
Serial port only
Self-discharge =
NAC512
per day @ 25°C
Voltage drop over sense resistor = 2.5mV to 50mV
Nominal discharge voltage = 3.6V
Therefore:
1000mAh*0.05
= 50mVh
6
bq2050
PROG
x
Pro-
grammed
Full
Count
(PFC)
PROG
4
= L
PROG
4
= Z
Units
1
2
PROG3 = H
SCALE =
1/80
614
563
512
461
422
384
346
320
282
PROG3 = Z PROG3 = L PROG3 = H PROG3 = Z PROG3 = L
SCALE =
1/160
1/320
1/640
307
154
76.8
282
141
70.4
256
128
64.0
230
115
57.6
211
106
53.0
192
96.0
48.0
173
86.4
43.2
160
80.0
40.0
141
70.4
35.2
-
-
-
SCALE =
SCALE =
SCALE =
1/1280
38.4
35.2
32.0
28.8
26.4
24.0
21.6
20.0
17.6
SCALE =
1/2560
19.2
17.6
16.0
14.4
13.2
12.0
10.8
10.0
8.8
mVh/
count
mVh
mVh
mVh
mVh
mVh
mVh
mVh
mVh
mVh
H
H
H
Z
Z
Z
L
L
L
VSR equivalent to 2
counts/sec. (nom.)
H
Z
L
H
Z
L
H
Z
L
49152
45056
40960
36864
33792
30720
27648
25600
22528
90
45
22.5
11.25
5.6
2.8
mV
Table 2. bq2050 Programmed Full Count mVh Selections
Pin
Connection
PROG
5
Compensation/
Self-Discharge
PROG
6
NAC on Reset
DISP
Display State
H
Table 4/Disabled
PFC
LEDs disabled
Z
Table 4/
NAC512
0
LEDs on when charging
L
Table 3/
NAC512
0
LEDs on for 4 sec.
Note:
PROG
5
and PROG
6
states are independent.
Table 1. bq2050 Programming
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| bq2052 | Gas Gauge IC for Lithium Primary Cells(Gas Gauge 芯片（用于鋰電池）) |
| 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）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| BQ2050H | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Cost Lithium Ion Power Gauge IC |
| bq2050hevm | 制造商:Texas Instruments 功能描述: |
| BQ2050HEVM-002 | 功能描述:電源管理IC開(kāi)發(fā)工具 BQ2050H Eval Kit for Li-Ion 10.8V 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 |
| BQ2050HSN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Cost Lithium Ion Power Gauge IC |
| BQ2050HSN-A308 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Cost Lithium Ion Power Gauge IC |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。