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參數(shù)資料
| 型號(hào)： | DS2745 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Cost I2C Battery Monitor |
| 中文描述： | 低成本I²C電池監(jiān)視器 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大?。?/td> | 223K |
| 代理商： | DS2745 |
1 of 14
091405
FEATURES
16-Bit Bidirectional Current Measurement
1.56 V LSB, ±51.2mV Dynamic Range
104 A LSB, ±3.4A Dynamic Range (RSNS =
15m )
Current Accumulation Register Resolution
6.25 Vhr LSB, ±204.8mVh Range
0.417mAhr LSB, ±13.65Ah Range
(R
SNS
= 15m )
11-Bit Voltage Measurement
4.88mV LSB, 0V to 5V Input Range
11-Bit Temperature Measurement
0.125oC Resolution, -20oC to +70oC
Industry Standard I
2
C* Interface
Low Power Consumption:
Active Current:
70 A typical, 100 A max
Sleep Current:
1 A typical, 3 A max
BLOCK DIAGRAM
VDD
VIN
SCL
SNS
VSS
SDA
Sense
DS2745
Li+
Protector
Fuel Gauge
Algorithm
μ
P
PACK-
COMM
PACK+
PIN CONFIGURATION
DESCRIPTION
The DS2745 provides current-flow, voltage, and
temperature measurement data to support battery-
capacity monitoring in cost-sensitive applications. The
DS2745 can be mounted on either the host side or
pack side of the application. Current measurement
and coulomb counting is accomplished by monitoring
the voltage drop across an external sense resistor,
voltage measurement is accomplished through a
separate voltage-sense input, and temperature
measurement takes place on-chip. A standard I
C
interface with software programmable address gives
the controlling microprocessor access to all data and
status registers inside the DS2745. A low-power sleep
mode state conserves energy when the cell pack is in
storage.
APPLICATIONS
Cellular
GPS
PDAs
Handheld Products
Table 1.
ORDERING INFORMATION
PART
DS2745U+
DS2745U+/T&R
MARKING
2745
2745
PIN-PACKAGE
MAX package
DS2745U+ in Tape-and-Reel
+Denotes lead-free package.
*I
C is a trademark of Philips Corp. Purchase of I
2
C components from Maxim Integrated Products, Inc., or one of its sublicensed Associated
Companies, conveys a license under the Philips I
2
C Patent Rights to use these components in an I
C system, provided that the system
conforms to the I
C Standard Specification as defined by Philips.
DS2745
Low-Cost I
2
C Battery Monitor
www.maxim-ic.com
MAX
SDA
PIO
VDD
VIN
CTG
VSS
SNS
SCL
6
8
7
5
3
1
2
4
See Table 1 for Ordering Information.
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PDF描述 |
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| DS2746 | Low-Cost 2-Wire Battery Monitor with Ratiometric A/D Inputs |
| DS2751 | Multichemistry Fuel Garge |
| DS2751-025 | Multichemistry Fuel Garge |
| DS2751E | Multichemistry Fuel Garge |
| DS2756 | High-Accuracy Battery Fuel Gauge with Programmable Suspend Mode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2745_09 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Cost I2C Battery Monitor |
| DS2745EVKIT+ | 功能描述:電源管理IC開發(fā)工具 DS2745 Eval Kit 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 |
| DS2745K | 功能描述:電源管理IC開發(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 |
| DS2745U+ | 功能描述:電池管理 I2C Battery Monitor 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 |
| DS2745U+/R | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Cost I2C Battery Monitor |
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