DS2720AU, DS2722P, DS2740
Table of contents:
Part Number: DS2720AU
DS2720AU Supplier
DS2720AU
MFG: bOURNS Qty: 8500 Note: We do Original and New Only, Gold Member!!
Mentor International Electronic Co.,Ltd., 
Contact: Mr.TOPHYYING 
Tel: 086-755-21983036
Adddate: 2010-03-20
DS2 DSS9001A
Package Cooled: BGA D/C: 2004+ Qty: 12 Note: New & Original/stock
SHENZHEN MINGJIADA ELECTRONICS CO.,LTD 
Contact: Mr.chen
Tel: 86-0755-83957301
Adddate: 2010-03-20
DS2 DSS9001A
MFG: N/A Package Cooled: BGA D/C: 07+ Qty: 42654
RU CHEN (HK) ELECTRONICS COMPANY
Contact: Mr.LIN
Tel: 86-0754-84479727
Adddate: 2010-03-20
DS2000AZZZ
MFG: TI Qty: 5623
HuaKe Optoelectronics(ASIA) co.,Limited
Contact: Mr.Hu
Tel: +86-755-83553014
Adddate: 2010-03-20
DS2000J
MFG: MOTOROLA Package Cooled: PLCC-44 D/C: 07+ Qty: 200 Note: STOCK
Contact: Ms.Cherry Feng
Tel: 86-755-8288-4368
Adddate: 2010-03-20
DS2000J
MFG: MOTOROLA Qty: 200
Contact: Mr.Kevin
Tel: 86-0754-84487421
Adddate: 2010-03-20
DS2001
MFG: ROHM Package Cooled: SOP30 D/C: 07+ Qty: 42654
RU CHEN (HK) ELECTRONICS COMPANY
Contact: Mr.LIN
Tel: 86-0754-84479727
Adddate: 2010-03-20
About DS2720AU
PDF/DataSheet Download
Datasheet: DS2720AU
File Size: 263363 KB
Manufacturer: DALLAS [Dallas Semiconducotr]
Download : Click here to Download
DS2740 Supplier
DS2740
MFG: MAXIM Package Cooled: 486 D/C: 94+ Qty: SMD
HK HUAYI TRADE DEVELOPMENT LIMITED
Contact: Ms.Kristy
Tel: 86-0755-83259720/83980925
Adddate: 2010-03-20
DS2740
MFG: MAXIM Package Cooled: 486 D/C: 94+ Qty: SMD
Contact: Mr.jianxu
Tel: 86-755-33068161/33068162
Adddate: 2010-03-20
DS2740
MFG: 1000 Package Cooled: MAXIM Qty:
Dong Sheng International Electronics Ltd
Contact: Mr.Jorge Wei
Tel: 010-0755-88356761
Adddate: 2010-03-20
DS2740
MFG: MAXIM Qty: 1000 Note:
Dong Sheng International Electronics Ltd
Contact: Mr.Jorge Wei
Tel: 010-0755-88356761
Adddate: 2010-03-20
DS2740
MFG: DALLAS Package Cooled: 94+ D/C: 315 Qty: SOIC
Contact: Mr.TIM WU
Tel: 86-0755-88396385
Adddate: 2010-03-20
DS2740
D/C: 08+/09+ Qty: 138000 Note: New and original
Contact: Mr.TIM WU
Tel: 86-0755-88396385
Adddate: 2010-03-20
DS2740
MFG: MAXIM Package Cooled: 94+ D/C: SMD Qty: 374
Jixin Technology HongKong Development Co.,Ltd
Contact: Ms.yi
Tel: 0086-755-8254-4498
Adddate: 2010-03-20
DS2740
MFG: MAXIM Package Cooled: SMD D/C: 94+ Qty: 486
Contact: Ms.JessicaGan
Tel: 86-755-84720945
Adddate: 2010-03-20
About DS2740
PDF/DataSheet Download
Datasheet: DS2740
File Size: 254346 KB
Manufacturer: DALLAS [Dallas Semiconducotr]
Download : Click here to Download
DS2722P Supplier
DS2722P
MFG: DSLLAS D/C: 05+ Qty: 4 Note: RFQ,CALL FOR PRICE
Grand Parts Electronics Corporation
Contact: Mr.Marco
Tel: 86-755-8281-4478
Adddate: 2010-03-20
DS2722P
MFG: DSLLAS Package Cooled: 23855 D/C: 08+ Qty: SMD
Advanced Components(HK)Co.,Ltd
Contact: Ms.Catherine.Deng
Tel: 086-0755-23804496
Adddate: 2010-03-20
DS2722P
MFG: 1000 Package Cooled: DSLLAS D/C: 20007 Qty: SMD
Liverpool (HongKong) Electronics Co.
Contact: Mr.WilsonLXW
Tel: 86-755-83957717
Adddate: 2010-03-20
DS2 DSS9001A
Package Cooled: BGA D/C: 2004+ Qty: 12 Note: New & Original/stock
SHENZHEN MINGJIADA ELECTRONICS CO.,LTD
Contact: Mr.chen
Tel: 86-0755-83957301
Adddate: 2010-03-20
DS2 DSS9001A
MFG: N/A Package Cooled: BGA D/C: 07+ Qty: 42654
RU CHEN (HK) ELECTRONICS COMPANY
Contact: Mr.LIN
Tel: 86-0754-84479727
Adddate: 2010-03-20
DS2000AZZZ
MFG: TI Qty: 5623
HuaKe Optoelectronics(ASIA) co.,Limited
Contact: Mr.Hu
Tel: +86-755-83553014
Adddate: 2010-03-20
DS2000J
MFG: MOTOROLA Package Cooled: PLCC-44 D/C: 07+ Qty: 200 Note: STOCK
Contact: Ms.Cherry Feng
Tel: 86-755-8288-4368
Adddate: 2010-03-20
About DS2
PDF/DataSheet Download
Datasheet: DS2
File Size: 68288 KB
Manufacturer: Linear
Download : Click here to Download
DS2740 General Description
The DS2740 provides high-precision current-flow measurement data to support battery-capacity monitoring in cost-sensitive applications. Current is measured bidirectionally over a dynamic range of 15 bits (DS2740U) or 13 bits (DS2740UB), with the net flow accumulated in a separate 16-bit register. Through its 1-Wire interface, the DS2740 allows the host system read/write access to status and current measurement registers. Each device has a unique factory-programmed 64-bit net address that allows it to be individually addressed by the host system, supporting multibattery slot operation. The interface can be operated with standard or overdrive timing.
Although the DS2740 is primarily intended for location on the host system, it is also suited for mounting in the battery pack. The DS2740 and FuelPack™ algorithms, along with host measurements of temperature and voltage, form a complete and accurate solution for estimating remaining capacity.
DS2740 Maximum Ratings
Voltage on VDD, DQ, IS1, IS2, PIO, Relative to VSS .......-0.3V to +6V
Voltage on SNS, Relative to VSS ....................................-0.3V to +6V
Operating Temperature Range .................................-40°C to +85°C
Storage Temperature Range ..................................-55°C to +125°C
Soldering Temperature ............................See IPC/JEDECJ-STD-020A
* This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.
DS2740 Features
· 15-Bit Bidirectional Current Measurement (DS2740)
- 1.56μV LSB and ±51.2mV Dynamic Range
- 78μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
- 156μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
· 13-Bit Bidirectional Current Measurement (DS2740B)
- 6.25μV LSB and ±51.2mV Dynamic Range
- 312μA LSB and ±2.56A Dynamic Range with External 20mΩ Sense Resistor (RSNS)
- 625μA LSB and ±5.12A Dynamic Range with External 10mΩ Sense Resistor (RSNS)
· Analog Input Filter (IS1, IS2) Extends Dynamic Range for Pulse-Load Applications
· Current Accumulation Register Resolution
- 6.25μVhr (Both DS2740 and DS2740B)
- 0.3125mAhr with External 20mΩ RSNS
- 0.6250mAhr with External 10mΩ RSNS
· Dallas 1-Wire® Interface
- Unique 64-Bit Device Address
- Standard and Overdrive Timings (OVD)
· Low Power Consumption:
- Active Current: 65μA max
- Sleep Current: 1μA max
DS2740 Connection Diagram
