Part Details for LTC2945CUD#TRPBF by Linear Technology
Results Overview of LTC2945CUD#TRPBF by Linear Technology
- Distributor Offerings: (0 listings)
- Number of FFF Equivalents: (2 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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LTC2945CUD#TRPBF Information
LTC2945CUD#TRPBF by Linear Technology is a Power Management Circuit.
Power Management Circuits are under the broader part category of Power Circuits.
A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.
Part Details for LTC2945CUD#TRPBF
LTC2945CUD#TRPBF CAD Models
LTC2945CUD#TRPBF Part Data Attributes
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LTC2945CUD#TRPBF
Linear Technology
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Datasheet
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LTC2945CUD#TRPBF
Linear Technology
LTC2945 - Wide Range I<sup>2</sup>C Power Monitor; Package: QFN; Pins: 12; Temperature Range: 0°C to 70°C
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| Rohs Code | Yes | |
| Part Life Cycle Code | Transferred | |
| Ihs Manufacturer | LINEAR TECHNOLOGY CORP | |
| Part Package Code | QFN | |
| Package Description | 3 X 3 MM, LEAD FREE, PLASTIC, MO-220WEED-1, QFN-12 | |
| Pin Count | 12 | |
| Manufacturer Package Code | UD | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Adjustable Threshold | YES | |
| Analog IC - Other Type | POWER SUPPLY SUPPORT CIRCUIT | |
| JESD-30 Code | S-PQCC-N12 | |
| JESD-609 Code | e3 | |
| Length | 3 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Channels | 1 | |
| Number of Functions | 1 | |
| Number of Terminals | 12 | |
| Operating Temperature-Max | 70 °C | |
| Operating Temperature-Min | ||
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | HVQCCN | |
| Package Equivalence Code | LCC12,.12SQ,20 | |
| Package Shape | SQUARE | |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 0.8 mm | |
| Supply Current-Max (Isup) | 1.2 mA | |
| Supply Voltage-Max (Vsup) | 80 V | |
| Supply Voltage-Min (Vsup) | 2.7 V | |
| Supply Voltage-Nom (Vsup) | 5 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | COMMERCIAL | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | NO LEAD | |
| Terminal Pitch | 0.5 mm | |
| Terminal Position | QUAD | |
| Time@Peak Reflow Temperature-Max (s) | 30 | |
| Width | 3 mm |
Alternate Parts for LTC2945CUD#TRPBF
This table gives cross-reference parts and alternative options found for LTC2945CUD#TRPBF. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of LTC2945CUD#TRPBF, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
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| LTC2945CUD#PBF | Analog Devices Inc | $6.8546 | Wide Range I2C Power Monitor | LTC2945CUD#TRPBF vs LTC2945CUD#PBF |
| LTC2945IUD#TRPBF | Linear Technology | Check for Price | LTC2945 - Wide Range I2C Power Monitor; Package: QFN; Pins: 12; Temperature Range: -40°C to 85°C | LTC2945CUD#TRPBF vs LTC2945IUD#TRPBF |
LTC2945CUD#TRPBF Frequently Asked Questions (FAQ)
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The maximum voltage rating for the VIN pin is 36V, but it's recommended to keep it below 30V for reliable operation.
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To ensure accurate current measurements, make sure to use a sense resistor with a low temperature coefficient, keep the sense resistor close to the IC, and use a Kelvin connection to the sense resistor.
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The VCC pin is used to power the internal circuitry of the LTC2945. While it's possible to connect VCC to VIN, it's not recommended as it may affect the accuracy of the current measurements. Instead, use a separate voltage source or a voltage regulator to power the VCC pin.
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The power consumption of the LTC2945 can be calculated by adding the quiescent current (IQ) to the current drawn by the output stages. The IQ is typically around 1.5mA, and the output stage current depends on the output voltage and load current.
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Yes, the LTC2945 can be used to measure high-side current by connecting the sense resistor between the VIN pin and the load. However, make sure to use a suitable sense resistor value and take into account the voltage drop across the sense resistor when calculating the current measurement.