1 of 16
051805
 
 
DS2740
 High-Precision Coulomb Counter
 
 
 
 
FEATURES
   15-Bit Bidirectional Current Measurement
(DS2740U)
   1.56糣 LSB and ?1.2mV Dynamic
Range
   78糀 LSB and ?.56A Dynamic
Range with External 20m?Sense
Resistor (R
SNS
)
   156糀 LSB and ?.12A Dynamic
Range with External 10m?Sense
Resistor (R
SNS
)
   13-Bit Bidirectional Current Measurement
(DS2740BU)
   6.25糣 LSB and ?1.2mV Dynamic
Range
   312糀 LSB and ?.56A Dynamic
Range with External 20m?Sense
Resistor (R
SNS
)
   625糀 LSB and ?.12A Dynamic
Range with External 10m?Sense
Resistor (R
SNS
)
   Analog Input Filter (IS1, IS2) Extends
Dynamic Range for Pulse-Load
Applications
   Current Accumulation Register
Resolution
   6.25糣hr (Both DS2740U and
DS2740BU)
   0.3125mAhr with External 20m?
R
SNS
 
   0.6250mAhr with External 10m?
R
SNS
 
   Dallas 1-Wire
?/DIV>
 Interface
   Unique 64-Bit Device Address
   Standard and Overdrive Timings
(OVD)
   Low Power Consumption:
   Active Current: 65糀 max
   Sleep Current: 1糀 max
 
 
www.maxim-ic.com
PIN CONFIGURATION 
 
 
PIO
V
DD
DQ
V
SS
IS1
IS2
 
 
 
 
 
 
 
 
 
 
 
PIN DESCRIPTION
OVD - 1-Wire Bus Speed Select
PIO - Programmable I/O Pin
SNS - Sense Resistor Input
IS2 - Current-Sense Input
IS1 - Current-Sense Input
V
SS
  - Device Ground, Current-Sense Resistor
Return
DQ - Data Input/Output
V
DD
  - Power-Supply Input (2.7V to 5.5V)
 
 
 
MAX
DS2740U DS2740BU
NS
VD
6
7
2
3
See Table 1 for Ordering Information.
See Table 2 for Detailed Pin Descriptions.
1-Wire is a registered trademark of Dallas Semiconductor.
相关PDF资料
DS28EA00U+T&R IC THERMOMETER 1-WIRE 8-USOP
DS3920T-001+ IC CURRENT MIRROR 5:1 SOT23-6
DS4560LS-LO+T IC SWITCH HOT-PLUG 12V 8-SOIC
DS600U+T&R IC SENSOR TEMP 8-USOP
DS620U+ IC THERMOMETER/STAT DIG 8MSOP
DS7505U+T&R IC DGTL THERMOMETER 2WIRE 8-USOP
DS75LVU+T&R IC SENSOR TEMP DIGITAL 8MSOP
DS75LXS+ IC THERMOMETER/STAT DIG 8-SOIC
相关代理商/技术参数
DS2741 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Current Monitor and Accumulator with Integrated Sense Resistor
DS2741_09 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Current Monitor and Accumulator with Integrated Sense Resistor
DS2741N+ 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
DS2741N+T 功能描述:电池管理 Current Monitor & Accumulator RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
DS2745 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost I2C Battery Monitor
DS2745_09 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost I2C Battery Monitor
DS2745EVKIT+ 功能描述:电源管理IC开发工具 DS2745 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
DS2745K 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V