Datasheet LTC2991 (Analog Devices) - 32
| Manufacturer | Analog Devices |
| Description | Octal I2C Voltage, Current, and Temperature Monitor |
| Pages / Page | 32 / 32 — TYPICAL APPLICATION. Parasitic Resistance Voltage and Current Monitoring … |
| File Format / Size | PDF / 774 Kb |
| Document Language | English |
TYPICAL APPLICATION. Parasitic Resistance Voltage and Current Monitoring with Temperature Compensation
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LTC2991
TYPICAL APPLICATION Parasitic Resistance Voltage and Current Monitoring with Temperature Compensation
SWITCHING WAVEFORM INDUCTOR WITH QUIET NODE RPARASITIC ILOAD 5V 1µF BUCK 2.1k 2.1k REGULATOR
VOLTAGE, CURRENT AND TEMPERATURE CONFIGURATION
CONTROL REGISTER 0x06: 0xA1: 1µF 1µF THERMAL TAMBIENT REG 1A, 1B: 0.0625°C/LSB COUPLING VLOAD REG 0A, 0B: 305µV/LSB I 5V LOAD REG 0C, 0D: 190.75µA/LSB TRPARASITIC REG 1A, 1B: 0.0625°C/LSB 1µF VCC REG 1C, 1D: 2.5V + 305.18µV/LSB VCC V1 V2 2-WIRE I2C SDA V3 INTERFACE SCL LTC2991 MMBT3904 ADR0 ADR1 V4 ADR2 GND V5 TO V8 RPARASITIC ~ 4000ppm/°C 2991 TA12 4 TAMBIENT OTHER APPS
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LTC2990 Quad I2C Temperature, Voltage and Remote and Internal Temperatures, 14-Bit Voltages and Current, Internal 10ppm/°C Current Monitor Reference LTC2997 Remote/Internal Temperature Sensor Temperature to Voltage with Integrated 1.8V Voltage Reference, ±1°C Accuracy LTC6102/LTC6102HV Precision Zero Drift Current Sense 5V to 100V, 105V Absolute Maximum (LTC6102HV) Amplifier LTC1392 Micropower Temperature, Power Supply Complete Ambient Temperature Sensor Onboard and Differential Voltage Monitor LTC2970 Dual I2C Power Supply Monitor and Integrated Reference and On-Chip Temperature Sensor Margining Controller Sequence, Trim, Margin and Supervise Eight Power Supplies LTC2977 Octal PMBus Power Supply Manager Integrated Reference and On-Chip Temperature Sensor and Fault Logging with EEPROM LTC2945 High Voltage I2C Power Monitor 0V to 80V Range, 12-Bit Voltage and Current. Measurement with 0.75% TUE I2C Interface Calculates 24-Bit Power Value, Stores Minimum and Maximum Values LTC2487 16-Bit 2-, 4-Channel Delta Sigma ADC Internal Temperature Sensor with PGA, Easy Drive™ and I2C Interface LM134 Constant Current Source and Can Be Used as Linear Temperature Sensor Temperature Sensor LTC2983 Multi-Sensor High Accuracy Digital 0.1°C Accuracy, Directly Digitize RTDs, Thermocouples, Thermistors and Diodes, 20 Temperature Measurement System Flexible Inputs 2991ff 32 LT 1015 REV F • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95Fo 0 r3 m 5- o7re4 in 17formation www.linear.com/LTC2991 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC2991 LINEAR TECHNOLOGY CORPORATION 2011 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL APPLICATION Parasitic Resistance Voltage and Current Monitoring with Temperature Compensation
SWITCHING WAVEFORM INDUCTOR WITH QUIET NODE RPARASITIC ILOAD 5V 1µF BUCK 2.1k 2.1k REGULATOR
VOLTAGE, CURRENT AND TEMPERATURE CONFIGURATION
CONTROL REGISTER 0x06: 0xA1: 1µF 1µF THERMAL TAMBIENT REG 1A, 1B: 0.0625°C/LSB COUPLING VLOAD REG 0A, 0B: 305µV/LSB I 5V LOAD REG 0C, 0D: 190.75µA/LSB TRPARASITIC REG 1A, 1B: 0.0625°C/LSB 1µF VCC REG 1C, 1D: 2.5V + 305.18µV/LSB VCC V1 V2 2-WIRE I2C SDA V3 INTERFACE SCL LTC2991 MMBT3904 ADR0 ADR1 V4 ADR2 GND V5 TO V8 RPARASITIC ~ 4000ppm/°C 2991 TA12 4 TAMBIENT OTHER APPS
RELATED PARTS PART NUMBER DESCRIPTION COMMENTS
LTC2990 Quad I2C Temperature, Voltage and Remote and Internal Temperatures, 14-Bit Voltages and Current, Internal 10ppm/°C Current Monitor Reference LTC2997 Remote/Internal Temperature Sensor Temperature to Voltage with Integrated 1.8V Voltage Reference, ±1°C Accuracy LTC6102/LTC6102HV Precision Zero Drift Current Sense 5V to 100V, 105V Absolute Maximum (LTC6102HV) Amplifier LTC1392 Micropower Temperature, Power Supply Complete Ambient Temperature Sensor Onboard and Differential Voltage Monitor LTC2970 Dual I2C Power Supply Monitor and Integrated Reference and On-Chip Temperature Sensor Margining Controller Sequence, Trim, Margin and Supervise Eight Power Supplies LTC2977 Octal PMBus Power Supply Manager Integrated Reference and On-Chip Temperature Sensor and Fault Logging with EEPROM LTC2945 High Voltage I2C Power Monitor 0V to 80V Range, 12-Bit Voltage and Current. Measurement with 0.75% TUE I2C Interface Calculates 24-Bit Power Value, Stores Minimum and Maximum Values LTC2487 16-Bit 2-, 4-Channel Delta Sigma ADC Internal Temperature Sensor with PGA, Easy Drive™ and I2C Interface LM134 Constant Current Source and Can Be Used as Linear Temperature Sensor Temperature Sensor LTC2983 Multi-Sensor High Accuracy Digital 0.1°C Accuracy, Directly Digitize RTDs, Thermocouples, Thermistors and Diodes, 20 Temperature Measurement System Flexible Inputs 2991ff 32 LT 1015 REV F • PRINTED IN USA Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95Fo 0 r3 m 5- o7re4 in 17formation www.linear.com/LTC2991 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC2991 LINEAR TECHNOLOGY CORPORATION 2011 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Timing Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
