LTC4331IUFD#TRPBF Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices LTC4331IUFD#TRPBF is an I2C slave device extender that bridges I2C bus signals over a rugged EIA-485 differential link. It supports up to 400 kHz fast-mode I2C communication over long-distance cabling. Housed in a compact 20-lead 4 mm x 5 mm QFN package.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- LTC4331IUFD#TRPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.2700(MOQ 25)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4331IUFD#TRPBF?
- Extends I2C bus over EIA-485 rugged differential link
- Supports up to 400 kHz I2C fast-mode
- 20-lead QFN package measuring 4 mm x 5 mm
- Single differential output channel
- Industrial temperature range operation
- Compatible with standard I2C slave devices without firmware changes
What is LTC4331IUFD#TRPBF used for?
The LTC4331IUFD#TRPBF is designed for industrial automation and building control systems that require extending I2C communication beyond the standard 400 pF bus capacitance limit. It enables reliable communication between a master controller and remote I2C sensors or actuators over distances of tens of meters using standard twisted-pair cabling. This makes it ideal for factory floor instrumentation, HVAC control nodes, and distributed sensor networks.
What are the specifications of LTC4331IUFD#TRPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1711 |
| YTEOL | 9 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| Input Characteristics | DIFFERENTIAL |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-485 |
| JESD-30 Code | R-PQCC-N20 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.02A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.16X.2,20 |
| Package Shape | RECTANGULAR |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 0.14mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 1.62V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 3V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC4331IUFD#TRPBF datasheet?
LTC4331IUFD#TRPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4331IUFD#TRPBF?
Compatible alternatives and drop-in replacements for LTC4331IUFD#TRPBF:
suggested
suggested
suggested
Frequently Asked Questions
How far can the LTC4331IUFD#TRPBF extend an I2C bus over a differential link?
The LTC4331IUFD#TRPBF uses an EIA-485 differential link to extend I2C communication, allowing cable runs of tens of meters. The standard I2C specification limits the bus to 400 pF capacitance, but this extender overcomes that constraint for remote sensor placement.
Which I2C operating modes and speeds does the LTC4331IUFD#TRPBF support?
The LTC4331IUFD#TRPBF supports I2C standard mode at 100 kHz and fast mode at 400 kHz, making it compatible with a broad range of sensors, EEPROMs, and other slave devices without requiring any changes to the slave device firmware.
For a compact industrial sensor node, how does the 20-lead QFN package footprint benefit PCB layout?
The 20-lead QFN package with a 4 mm x 5 mm footprint offers a very small board area of 20 mm², enabling tight integration into sensor node PCBs. This is significantly more compact than SOIC alternatives, making the LTC4331IUFD#TRPBF a better fit for space-constrained designs.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| 25+ | $7.6800 | $192.00 |
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