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MAX471
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Parameters

Technical/Catalog InformationMAX4711CSE+
VendorMaxim Integrated Products
CategoryIntegrated Circuits (ICs)
TypeSwitch
Voltage Supply SourceSingle, Dual Supply
Voltage - Supply, Single/Dual (±)2.7 V ~ 11 V, ±2.7 V ~ 5.5 V
Circuit4 x SPST-NC
On-State Resistance25 Ohm
Mounting TypeSurface Mount
Package / Case16-SOIC (3.9mm Width)
PackagingTube
Current - Supply-
Operating Temperature0°C ~ 70°C
FunctionSwitch
Drawing Number175; 21-0041; SE; 16
Lead Free StatusLead Free
RoHS StatusRoHS Compliant
Other Names MAX4711CSE+
MAX4711CSE+

Product Manufacturers Pack D/C
MAX471 - - -

Pinout/Connection Diagram

max471 Circuit
By applying an ac voltage superimposed on a ten times larger negative dc voltage (at VFG), the function generator determines the battery current drawn by Q1 (see the figure). The generator voltage causes the op-amp (IC2) output to go high and turn Q1 on, which allows battery current to flow through the high-side current-sensing amplifier (IC1). The output current of IC1, on pin 8, is equal to 1/2000 of this battery current. As a result, IC1, IC2, and Q1 form a loop in which the op amp forces a virtual ground at the IC1/IC2 end of R3. The op amp's extremely low-voltage offset (10 μV maximum) ensures accuracy. This virtual-ground condition enables the voltage divider (R5, and R3 in parallel with R4) and the function generator to determine the voltage across R3. The resulting current in R3 is iR3 = RP X VFG/【(RP+R5)R3】, where RP is the parallel combination of R3 and R4. Substituting resistor values and noting that battery current (iB) is 2000 times iR3,iB=-VFG/5.To operate the circuit, set the function generator's ac voltage to approximately 10 percent of its dc component. The equation then gives the resulting ac current in the battery (iB). Using an ac voltmeter, you can measure the ac voltage across the battery (vB) and calculate the average cell impedance as vB/NiB, where N is the number of cells. The circuit easily accommodates battery voltages of 3 V or more.

Supplier

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  Part Number Mfg Pack D/C Qty Note
MAX471 MAXIM DIP 08+ 11
  Goldenway Electronic Limited Company Hong Kong
Contact: Ms. sarah   Tel: 0086-755-82535329 Fax: 0086-755-
MAX471 MAX SMD 10+ 5000
  SANHUI (HK) ELECTRONICS China (Mainland)
Contact: Ms. Simmy   MSN:simmy-sales@hotmail.com Tel: 86-755-83674455 Fax: 86-755-83690789
MAX471 MAXIM DIP 5-6+ 90
  Hendary Tech(HK) Co., Limited China (Mainland)
Contact: Mr. Tony   MSN:tony-hun@hotmail.com Tel: +86-755-82862373 Fax: +86-755-82810121
MAX471 MAXIM DIP 15000 New and original sample can be provided
  UNION TECHNOLOGY (HK) TRADING COMPANY LIMITED China (Mainland)
Contact: Mr. Kevin   MSN:union-hk@live.com Tel: 0086-755-82813231/ 82813232 Fax: 0086-755-82813230
MAX471 DIP N/A 2010 New original in stock
  Xing Cheng Electronics Co.,Ltd China (Mainland)
Contact: Mr. Guo   MSN:stxcdz@hotmail.com MSN:guopen@live.com Tel: 86-0754-84462652 Fax: 86-0754-84462652
MAX471 MAX DIP N/A 578
  HONGKONG XUMEI ELECTRONICS CO. LIMITED China (Mainland)
Contact: Mr. Kate Fan   MSN:xumeidz002@hotmail.com Tel: 86-755-83267283 Fax: 86-755-83266796
MAX471 MAXIM SOP N/A 500
  SHUANGZHI(HK)CO.,LTD Hong Kong
Contact: Mr. chan   MSN:leochan64588@msn.cn MSN:zimingchan@msn.cn Tel: 86-0755-82794881 Fax: 86-0755-82794836
MAX471 MAXIM 12000 ECRAI@MSN.COM
  HitSem International Electronics Company Limited China (Mainland)
Contact: Mr. Ansion Yao   MSN:ECRAI@MSN.COM Tel: 86-755-61335263 Fax: 86-755-61335290
MAX471 MAXIN 07+ 11000
  LZ Electronics,Limited China (Mainland)
Contact: Mr. Leo   MSN:sales.lzelectronics@hotmail.com Tel: 86-755-81780037 Fax: 86-755-61641080
MAX471 MAXIM SOP 360 New and original sample can be provided.
  SILICON TECHNOLOGY(HONGKONG)ELECTRONIC LIMITED China (Mainland)
Contact: Mr. chen   MSN:siliconic@hotmail.com Tel: 86-755-83000558 Fax: 86-755-83000758
MAX471 MAX N/A 09+ 20002 New & original, stock offer
  TONGGUANG (H.K.) ELECTRICS CO., LIMITED China (Mainland)
Contact: Mr. james   MSN:james_123lin@hotmail.com,SKYPE:wondle Tel: +86-755-23932235 Fax: +86-755-83996795
MAX471 MAX SMD 09+ 589
  TACT (H.K.) Century Co., Limited China (Mainland)
Contact: Mr. Toby   MSN:tactcentury@hotmail.com Tel: 0086-0755-83240085 Fax: 0086-0755-23944320
MAX471 ST SOP 05+ 164
  HK Potential Electronics Co., Ltd China (Mainland)
Contact: Ms. Cherry   MSN:cherry8130@hotmail.com Tel: 86-731-82075372 Fax: 86-755-83686454
MAX471 MAXIM SOP 01+ 50PCS
  Aosiwei Commercial & Trade Co., Ltd. China (Mainland)
Contact: Ms. Sophia   MSN:aosi@vip.163.com Tel: 86-755-83019442 Fax: 86-755-83019443
MAX471 MAXIM DIP 170
  SUPER-COMPONENTS LIMITED Hong Kong
Contact: Ms. Lotus   MSN:super-components@hotmail.com Tel: 86-852-3068-4088 Fax: 86-852-3068-4328
MAX471 SMD 09+ 40000 Advantage Offer!!!
  ATL (HK) ELECTRONIC CO.,LIMITED China (Mainland)
Contact: Mr. Semon   MSN:semon_26@hotmail.com Tel: 0086-0755-36938864，83554152 Fax: 0086-0755-28233505
MAX471 MAXIM SOP 4
  Yuexunfa Electronic Co.,Ltd China (Mainland)
Contact: Ms. Linda Lin   MSN:leenchow@hotmail.com Tel: 86-755-83778358 Fax: 86-755-83778378
MAX471 MAXIM SOP 01+ 50PCS
  Hongkong Kaiyuwei Trading Company China (Mainland)
Contact: Ms. Lisa   MSN:lisa.kyw@hotmail.com Tel: 86-755-36931142 Fax: 86-755-83869906
MAX471 MAX 09+ 589 brand new parts and in stock
  HengRui Electronics Co., China (Mainland)
Contact: Mr. John zhang John zhang   MSN:zhang_678@msn.com Tel: 86-755-83040891 Fax: 86-755-82513716
MAX471 08+ 138000 New and original
  Zhongyue technology CO.Ltd China (Mainland)
Contact: Mr. david Lin   MSN:zhongyuesan@hotmail.com Tel: 86-755-61681670 Fax: 86-755-88396291
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PDF / Datasheet

MAX471 PDF Download

MAX471

File Size: 123685 KB
Manufacturer: MAXIM [Maxim Integrated Products]

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