參數(shù)資料
型號(hào)： DS2786BG+T&R
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝： 3 X 3 MM, ROHS COMPLIANT, TDFN-10
文件頁(yè)數(shù)： 21/21頁(yè)
文件大?。?/td> 363K
代理商： DS2786BG+T&R
DS2786B
Stand-Alone OCV-Based Fuel Gauge
_______________________________________________________________________________________
9
Voltage Measurement
Battery voltage is measured at the VIN input with respect
to VSS over a 0 to 4.999V range and with a resolution of
1.22mV. The result is updated every 880ms and placed
in the Voltage Register in two’s-complement form.
Voltages above the maximum register value are reported
as 7FFFh. Figure 5 is the Voltage Register format.
The input impedance of VIN is sufficiently large
(> 15M
Ω) to be connected to a high-impedance volt-
age-divider in order to support multiple-cell applica-
tions. The pack voltage should be divided by the
number of series cells to present a single-cell average
voltage to the VIN input.
Every 1024th conversion, the ADC measures its input
offset to facilitate offset correction to improve voltage
accuracy. Offset correction occurs approximately every
15min. The resulting correction factor is applied to the
subsequent 1023 measurements. During the offset-cor-
rection conversion, the ADC does not measure the VIN
signal. The voltage measurement just prior to the offset
conversion is displayed in the Voltage Register. The
OCV algorithm automatically adjusts for the effects of
the offset-correction cycle.
Auxilary Input Measurements
The DS2786B has two auxiliary voltage-measurement
inputs, AIN0 and AIN1. Both are measured with respect
to VSS. These inputs are designed for measuring resis-
tor ratios, particularly useful for measuring thermistor or
pack identification resistors. Prior to the beginning of a
measurement cycle on AIN0 or AIN1, the VOUT pin out-
puts a reference voltage in order to drive a resistive
divider formed by a known resistor value, and the
unknown resistance to be measured. This technique
delivers good accuracy at a reasonable cost, as it
removes reference tolerance from the error calcula-
tions. Measurements alternate between each input.
Each auxiliary measurement is therefore updated every
1760ms and placed in the corresponding AIN0 or AIN1
Register in two’s-complement form. Figure 6 shows the
Auxiliary Input Registers format.
MSB—ADDRESS 0Ch
LSB—ADDRESS 0Dh
S
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
1
2
0
X
MSB
LSB
MSB
LSB
“S”: SIGN BIT, “X”: RESERVED
UNITS: 1.22mV
Figure 5. Voltage Register Format
AIN0
MSB—ADDRESS 08h
LSB—ADDRESS 09h
S
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
1
2
0
X
MSB
LSB
MSB
LSB
“S”: SIGN BIT, “X”: RESERVED
UNITS: VOUT × 1/2047
AIN1
MSB—ADDRESS 0Ah
LSB—ADDRESS 0Bh
S
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
1
2
0
X
MSB
LSB
MSB
LSB
“S”: SIGN BIT, “X”: RESERVED
UNITS: VOUT × 1/2047
Figure 6. Auxiliary Input Registers Format
相關(guān)PDF資料
PDF描述
DS3316P-682MSD 1 ELEMENT, 6.8 uH, GENERAL PURPOSE INDUCTOR, SMD
DS3920T-001+T SPECIALTY ANALOG CIRCUIT, PDSO6
DS52-0002-TR Low Cost Two-Way SMT Power Divider 1920- 2170 MHz
DS52-0004 Low Cost Two-Way SMT Power Diveder 1510-1660MHz
DS52-0004-RTR Low Cost Two-Way SMT Power Diveder 1510-1660MHz
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2786BK 功能描述:電源管理IC開(kāi)發(fā)工具 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
DS2786G+ 功能描述:電池管理 Stand-Alone OCV Based Fuel 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
DS2786G+T&R 制造商:Maxim Integrated Products 功能描述:STAND ALONE OCV BASED FUEL GAUGE LF - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC FUEL GAUGE OCV 10-TDFN 制造商:Maxim Integrated Products 功能描述:FUEL GAUGE STANDALONE OCV TDFN-10 制造商:Maxim Integrated Products 功能描述:FUEL GAUGE STANDALONE OCV, TDFN-10
DS2786G+T&R 功能描述:電池管理 Stand-Alone OCV Based Fuel 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
DS2786G+TR 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Stand-Alone OCV-Based Fuel Gauge
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*