LTC2945IUD-1#PBF

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Analog Devices

WIDE RANGE I2C POWER MONITOR

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LTC2945IUD-1#PBF

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Analog Devices

WIDE RANGE I2C POWER MONITOR

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DocumentsDatasheet R567 Reliability Data +1

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	LTC2945IUD-1#PBF

Applications	General Purpose
Current - Supply	800 çA
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	12-WFQFN Exposed Pad
Supplier Device Package	12-QFN (3x3)
Voltage - Input [Max]	80 V
Voltage - Input [Min]	4 V
Voltage - Supply [Max]	5.9 V
Voltage - Supply [Min]	2.7 V

LTC2945 Series

Wide Range I2C Power Monitor

Part	Mounting Type	Applications	Voltage - Supply [Max]	Voltage - Supply [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Input [Max]	Voltage - Input [Min]	Package / Case	Current - Supply	Supplier Device Package
Analog Devices LTC2945HMS#PBF	Surface Mount	General Purpose	5.9 V	2.7 V	125 °C	-40 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945IMS-1#PBF	Surface Mount	General Purpose	5.9 V	2.7 V	85 °C	-40 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945CMS#PBF	Surface Mount	General Purpose	5.9 V	2.7 V	70 °C	0 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945HMS-1#TRPBF	Surface Mount	General Purpose	5.9 V	2.7 V	125 °C	-40 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945IMS#TRPBF	Surface Mount	General Purpose	5.9 V	2.7 V	85 °C	-40 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945HUD-1#TRPBF	Surface Mount	General Purpose	5.9 V	2.7 V	125 °C	-40 °C	80 V	4 V	12-WFQFN Exposed Pad	800 çA	12-QFN (3x3)
Analog Devices LTC2945CMS#TRPBF	Surface Mount	General Purpose	5.9 V	2.7 V	70 °C	0 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945IUD-1#PBF	Surface Mount	General Purpose	5.9 V	2.7 V	85 °C	-40 °C	80 V	4 V	12-WFQFN Exposed Pad	800 çA	12-QFN (3x3)
Analog Devices LTC2945IMS-1#TRPBF	Surface Mount	General Purpose	5.9 V	2.7 V	85 °C	-40 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP
Analog Devices LTC2945CMS-1#PBF	Surface Mount	General Purpose	5.9 V	2.7 V	70 °C	0 °C	80 V	4 V	12-TSSOP	800 çA	12-MSOP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 13.16
		10	$ 9.31
		25	$ 8.32
		100	$ 7.21
		250	$ 6.67
		500	$ 6.34
		1000	$ 6.14

Description

General part information

LTC2945 Series

The LTC2945 is a rail-to-rail system monitor that measures current, voltage, and power. It features an operating range of 2.7V to 80V and includes a shunt regulator for supplies above 80V to allow flexibility in the selection of input supply. The current measurement range of 0V to 80V is independent of the input supply. An onboard 0.75% accurate 12-bit ADC measures load current, input voltage and an auxiliary external voltage. A 24-bit power value is generated by digitally multiplying the measured 12-bit load current and input voltage data. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces power consumption to 20μA.The LTC2945 I2C interface includes separate data input and output pins for use with standard or opto-isolated I2C connections. The LTC2945-1 has an inverted data output for use with inverting opto-isolator configurations.APPLICATIONSTelecom InfrastructureIndustrialAutomotiveConsumer

Documents

Technical documentation and resources

Datasheet

R567 Reliability Data

Reliability Data

LTC2945: Wide Range I2C Power Monitor Data Sheet (Rev.C)

Data Sheet