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LTC2949 Datasheet(PDF) 80 Page - Analog Devices |
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LTC2949 Datasheet(HTML) 80 Page - Analog Devices |
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80 / 80 page  LTC2949 80 Rev A For more information www.analog.com ANALOG DEVICES, INC. 2019-2020 11/20 www.analog.com RELATED PARTS TYPICAL APPLICATION Battery Metering with Low-Side Current & Charge Sensing, Battery Voltage Measurement, Temperature Measurement, Contactor Supervision and Isolated Gate Drive of Pre-Charge FET. PART NUMBER DESCRIPTION COMMENTS LTC6810-1/ LTC6810-2 4th Generation 6-Cell Battery Stack Monitor and Balancing IC Measures Cell Voltages for Up to 6 Series Battery Cells. The isoSPI Daisy-Chain Capability Allows Multiple Devices to Be Interconnected for Measuring Many Battery Cells Simultaneously. The isoSPI Bus Can Operate Up to 1MHz and Can Be Operated Bidirectionally for Fault Conditions, Such as a Broken Wire or Connector. Includes Internal Passive Cell Balancing Capability of Up to 150mA. LTC6811-1/ LTC6811-2 4th Generation 12-Cell Battery Stack Monitor and Balancing IC Measures Cell Voltages for Up to 12 Series Battery Cells. Daisy-Chain Capability Allows Multiple Devices to Be Connected to Measure Many Battery Cells Simultaneously Via the Built-In 1MHz, 2-Wire Isolated Communication (isoSPI). Includes Capability for Passive Cell Balancing. LTC6820 isoSPI Isolated Communications Interface Provides an Isolated Interface for SPI Communication Up to 100 Meters, Using a Twisted Pair. Companion to the LTC6804, LTC6806, LTC6811, LTC6812 and LTC6813 LTC6812-1 4th Generation 15-Cell Battery Stack Monitor and Balancing IC Measures Cell Voltages for Up to 15 Series Battery Cells. The isoSPI Daisy-Chain Capability Allows Multiple Devices to Be Connected to Measuring Many Battery Cells Simultaneously. The isoSPI Bus Can Operate Up to 1MHz and Can Be Operated Bidirectionally for Fault Conditions, Such as a Broken Wire or Connector. Includes Internal Passive Cell Balancing Capability of Up to 200mA. LTC6813-1 4th Generation 18-Cell Battery Stack Monitor and Balancing IC Measures Cell Voltages for Up to 18 Series Battery Cells. The isoSPI Daisy-Chain Capability Allows Multiple Devices to Be Interconnected for Measuring Many Battery Cells Simultaneously. The isoSPI Bus Can Operate Up to 1MHz and Can Be Operated Bidirectionally for Fault Conditions, Such as a Broken Wire or Connector. Includes Internal Passive Cell Balancing Capability of Up to 200mA. +– VBAT+ VBAT– VBAT– VBAT– 2M 10k STB9NK80Z V8/GP01 V9/GP02 V10/GP03 V12/GP05 V11/GP04 AGND V1 V3 VREF V2 V4-V7 VBATP VBATM LTC2949 IOVCC SCK/IP CSB/IM SDO/IBIAS SDI/VCMP DVCC AVCC AGND DGND BYP1 BYP2 CLKO CLKI I2M CF2M CF1M CF1P CF2P I2P I1M I1P STB9NK80Z 2949 TA02 STB9NK80Z LOAD OR CHARGER STB9NK80Z STB9NK80Z RPRECH BATTERY SPI/isoSPI INTERFACE VCC* *VCC SUPPLY VOLTAGE MUST BE CHOSEN TO ENSURE MINIMUM VGS OF USED MOSFETS UNDER ALL CONDITIONS. 1µ 1µ 1µ 1µ 1µ 1µ 100µ RSENSE 33p 2M 10k 10k 10µ 2M 20k 1µ 10k NTC NTCLE203E 33p 4MHz |
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