Part Details for LTC2945IUD#TRPBF by Linear Technology
Results Overview of LTC2945IUD#TRPBF by Linear Technology
- Distributor Offerings: (1 listing)
- Number of FFF Equivalents: (2 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
LTC2945IUD#TRPBF Information
LTC2945IUD#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.
Price & Stock for LTC2945IUD#TRPBF
| Part # | Distributor | Description | Stock | Price | Buy | |
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Win Source Electronics | DC to DC Converter 10-Pin DFN EP Tube / IC POWER MONITOR I2C 12-QFN | 11900 |
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$5.0051 / $6.4648 | Buy Now |
Part Details for LTC2945IUD#TRPBF
LTC2945IUD#TRPBF CAD Models
LTC2945IUD#TRPBF Part Data Attributes
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LTC2945IUD#TRPBF
Linear Technology
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Datasheet
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LTC2945IUD#TRPBF
Linear Technology
LTC2945 - Wide Range I<sup>2</sup>C Power Monitor; Package: QFN; Pins: 12; Temperature Range: -40°C to 85°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 | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| 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 | INDUSTRIAL | |
| 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 LTC2945IUD#TRPBF
This table gives cross-reference parts and alternative options found for LTC2945IUD#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 LTC2945IUD#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 |
|---|---|---|---|---|
| LTC2945CUD#PBF | Analog Devices Inc | $6.8546 | Wide Range I2C Power Monitor | LTC2945IUD#TRPBF vs LTC2945CUD#PBF |
| LTC2945IUD#PBF | Analog Devices Inc | $7.3507 | Wide Range I2C Power Monitor | LTC2945IUD#TRPBF vs LTC2945IUD#PBF |
LTC2945IUD#TRPBF Frequently Asked Questions (FAQ)
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A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the input and output capacitors close to the IC, and use short, wide traces for the high-current paths.
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Use a low-impedance current sense resistor (e.g., 1mΩ) and place it close to the IC. Ensure the sense resistor is in the same thermal zone as the IC to minimize temperature-related errors.
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The maximum ambient temperature for reliable operation is 85°C. However, the IC can operate up to 125°C with reduced accuracy and reliability.
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Yes, but the accuracy of the fuel gauge may be affected. The LTC2945 is designed to work with batteries having internal resistances up to 100mΩ. For higher internal resistances, consider using a buffer capacitor to reduce the impact of battery impedance.
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Use the datasheet-provided calibration procedure, which involves measuring the battery's open-circuit voltage and internal resistance. You can also use the LTC2945's built-in calibration mode to simplify the process.