LTC4315IDE#PBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
Analog Devices LTC4315IDE#PBF is a 2-wire I2C/SMBus bus buffer with high noise margin, FAULT detection, and SBDR disable function. It supports I2C Fast Mode up to 400 kHz and operates in a compact 12-lead DFN package for industrial signal integrity.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 12
- Lifecycle
- ACTIVE
- Datasheet
- LTC4315IDE#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.9800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2-wire I2C/SMBus bus buffer compatible with standard mode, Fast Mode up to 400 kHz, and SMBus protocols
- High noise margin input thresholds improve signal integrity across long PCB traces or cable segments
- Integrated FAULT output and SBDR disable pin for system-level fault management and bus isolation
- Compact 12-lead DFN (3 mm × 3 mm) package enabling tight board-space integration
Applications
The LTC4315IDE#PBF is used to extend I2C and SMBus communication buses across segments with different voltage levels or high capacitive loads in servers, industrial controllers, and telecom equipment. Its high noise margin thresholds make it suitable for electrically noisy environments such as motor control panels and backplane interconnects. The FAULT and SBDR disable features allow hot-swap bus management in multi-master systems requiring dynamic segment isolation.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1695 |
| YTEOL | 10 |
| Additional Feature | COMPATIBLE WITH I2C, I2C FAST MODE AND SMBUS |
| Interface IC Type | BUS BUFFERS |
| JESD-30 Code | R-PDSO-N12 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC12,.12,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.9V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline 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 | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What I2C data rates does the LTC4315IDE#PBF support, and how does it handle bus capacitance extension?
The LTC4315IDE#PBF supports I2C standard mode (100 kHz), Fast Mode (400 kHz), and SMBus protocols. It acts as a bidirectional buffer that isolates input and output bus segments, allowing each segment to drive up to 400 pF of capacitive load independently, extending total bus reach well beyond the standard 400 pF limit.
How does the FAULT pin on the LTC4315IDE#PBF help protect multi-master I2C systems?
The FAULT output pin asserts when the LTC4315IDE#PBF detects a stuck bus or timeout condition, alerting the host controller within microseconds. This allows firmware to initiate a bus reset sequence or reroute communications, preventing a single faulty I2C device from locking up an entire 12-node system on a 400 kHz SMBus segment.
For an industrial sensor network, which noise immunity advantage does the LTC4315IDE#PBF offer over standard I2C repeaters?
The LTC4315IDE#PBF provides high noise margin input thresholds that tolerate signal distortion introduced by long PCB traces, cables, or EMI-rich environments common in 24V industrial sensor networks. Compared to standard I2C repeaters with typical 0.7×VCC thresholds, it reduces false triggering from coupled noise, improving system uptime in motor control and PLC installations.
What is the package type and pin count of the LTC4315IDE#PBF, and how does it compare in size to SO-8 alternatives?
The LTC4315IDE#PBF comes in a 12-lead DFN small-outline no-lead package measuring approximately 3 mm × 3 mm with 0.5 mm pitch. This footprint is smaller than a standard SO-8 package (4.9 mm × 3.9 mm), saving significant board area in high-density I2C buffer designs for compact servers and embedded industrial controllers.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $9.5800 | $9.58 |
| 10+ | $6.4880 | $64.88 |
| 19+ | $5.2800 | $100.32 |
| 1000+ | $3.9800 | $3980.00 |
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