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DS2740 Datasheet

Part Number DS2740
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description High-Precision Coulomb Counter
Datasheet DS2740 DatasheetDS2740 Datasheet (PDF)

www.maxim-ic.com FEATURES ƒ 15-Bit Bidirectional Current Measurement (DS2740U) ƒ 1.56μV LSB and ±51.2mV Dynamic Range ƒ 78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS) ƒ 156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS) ƒ 13-Bit Bidirectional Current Measurement (DS2740BU) ƒ 6.25μV LSB and ±51.2mV Dynamic Range ƒ 312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS) ƒ 625μA LSB and ±5.12A Dynamic Range with External 10mΩ .

  DS2740   DS2740






Part Number DS2746
Manufacturers Manix
Logo Manix
Description Low-Cost 2-Wire Battery Monitor
Datasheet DS2740 DatasheetDS2746 Datasheet (PDF)

DS2746 Low-Cost 2-Wire Battery Monitor with Ratiometric A/D Inputs www.maxim-ic.com GENERAL DESCRIPTION The DS2746 provides system-side battery capacity monitoring in cost-sensitive applications. Voltage, bidirectional current, and accumulated current measurement data is provided to the host processor over a 2-wire interface. Offset bias and offset blanking features greatly enhance the accuracy of the coulomb counter. In addition, the DS2746 has two auxiliary A/D inputs to sample the pack ident.

  DS2740   DS2740







Part Number DS2745
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Low-Cost I2C Battery Monitor
Datasheet DS2740 DatasheetDS2745 Datasheet (PDF)

19-4631; 5/09 www.DataSheet4U.com DS2745 Low-Cost I C Battery Monitor www.maxim-ic.com 2 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 (RSNS = 15m) 11-Bit Voltage Measurement 4.88mV LSB, 0V to 4.5V Input Range 11-Bit Temperature Measurement 0.125ºC Resolution, -20ºC to +70ºC Industry Standard I2C* Interface Low .

  DS2740   DS2740







Part Number DS2741
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Current Monitor and Accumulator
Datasheet DS2740 DatasheetDS2741 Datasheet (PDF)

19-4683; Rev 1; 7/09 www.DataSheet4U.com Current Monitor and Accumulator with Integrated Sense Resistor General Description The DS2741 current monitor/accumulator is a complete current-sensing, measuring, and accumulation device tailored for cost-sensitive, battery-powered applications in a small 3mm x 3mm TDFN package. As a result, the DS2741 is a key component in battery-charge control and remaining capacity-estimation applications. Through its I2C interface, the DS2741 gives the host system.

  DS2740   DS2740







High-Precision Coulomb Counter

www.maxim-ic.com FEATURES ƒ 15-Bit Bidirectional Current Measurement (DS2740U) ƒ 1.56μV LSB and ±51.2mV Dynamic Range ƒ 78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS) ƒ 156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS) ƒ 13-Bit Bidirectional Current Measurement (DS2740BU) ƒ 6.25μV LSB and ±51.2mV Dynamic Range ƒ 312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS) ƒ 625μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS) ƒ Analog Input Filter (IS1, IS2) Extends Dynamic Range for Pulse-Load Applications ƒ Current Accumulation Register Resolution ƒ 6.25μVhr (Both DS2740U and DS2740BU) ƒ 0.3125mAhr with External 20mΩ RSNS ƒ 0.6250mAhr with External 10mΩ RSNS ƒ Dallas 1-Wire® Interface ƒ Unique 64-Bit Device Address ƒ Standard and Overdrive Timings (OVD) ƒ Low Power Consumption: ƒ Active Current: 65μA max ƒ Sleep Current: 1μA max DS2740 High-Precision Coulomb Counter PIN CONFIGURATION OVD 1 8 VDD PIO SNS IS2 2 3 4 7 DQ 6 VSS 5 IS1 μMAX (DS2740U, DS2740BU) See Table 1 for Ordering Information. See Table 2 for Detailed Pin Descriptions. 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 VSS - Device Ground, Current-Sense Resistor Return DQ - Data Input/Output VDD - Power-Supply Input (2.7V to 5.5V) 1-Wire is a registered trademark of Dallas Semiconductor. 1 of 16 051805 Tabl.


2020-03-26 : DS1308    MAX25611C    DS90CR216    DS1629    DS1624    DS90CR215    MAX20315    MAX5976B    DS1100    DS1100L   


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