TCA9517ADGKR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TCA9517ADGKR is a 2-bit I2C voltage-level translator in an 8-pin SOIC package by Texas Instruments. It supports bidirectional level translation with open-drain outputs and a single-function design. Available from stock worldwide at competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TCA9517ADGKR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5374(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-bit bidirectional I2C voltage-level translation enabling seamless 1.8 V to 5 V bus interfacing without external pull-up tricks
- Open-drain output architecture compatible with standard I2C and SMBus protocols for reliable multi-master bus designs
- Compact 8-pin SOIC package with JEDEC S-PDSO-G8 outline keeps PCB footprint minimal in board-space-critical systems
- RoHS-compliant (Pb-free e4) construction meeting modern environmental standards for consumer and industrial applications
Applications
TCA9517ADGKR is widely used in mixed-voltage embedded systems where a 3.3 V microcontroller must communicate with 5 V legacy peripherals or 1.8 V sensors over I2C. It enables safe bidirectional signal translation in battery-management ICs, sensor hubs, and display controllers without logic contention. The device is also common in industrial IoT gateways and handheld instruments that aggregate data from multiple I2C sensor ICs on different voltage rails.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Interface IC Type | VOLTAGE LEVEL TRANSLATOR |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Bits | 2 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-DRAIN |
| Output Latch or Register | LATCH |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 0.9V |
| Supply Voltage-Nom | 2.7V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 2.7V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mainland China, Malaysia, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TCA9517ADGKR:
suggested
suggested
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Frequently Asked Questions
What voltage rails does TCA9517ADGKR support for bidirectional I2C level translation?
TCA9517ADGKR translates between two I2C voltage domains, typically supporting 1.8 V to 5 V rail combinations. Its open-drain output architecture allows the A-side and B-side to operate at different supply voltages, making it a practical choice when connecting a 3.3 V microcontroller to 5 V sensors or 1.8 V memory devices over a 2-wire I2C bus.
For a sensor hub design with 8 or more I2C devices across two voltage rails, how does TCA9517ADGKR simplify the board layout?
TCA9517ADGKR handles all 2-wire bidirectional translation in a single 8-pin SOIC footprint, eliminating discrete resistor dividers or dual-supply buffer ICs. On a sensor hub with 8 or more I2C peripherals, one translator per voltage boundary keeps routing clean, and the open-drain outputs integrate directly with existing pull-up resistor networks already present on most I2C designs.
When should a designer choose TCA9517ADGKR over a general-purpose logic-level converter?
TCA9517ADGKR is the better choice when the bus is I2C or SMBus and bidirectional arbitration is required, because its open-drain output stage respects the bus pull-up protocol that a unidirectional buffer cannot. General-purpose level shifters may fight pull-up currents and corrupt 2-bit acknowledgment sequences, whereas TCA9517ADGKR's single-function, 2-bit architecture is purpose-built to prevent contention on 400 kHz Fast-mode I2C buses.
Is TCA9517ADGKR suitable for designs targeting RoHS compliance in industrial applications?
Yes, TCA9517ADGKR carries a Pb-free JESD-609 e4 code and meets RoHS environmental requirements, making it compliant for industrial control systems, building automation panels, and medical instrumentation that must meet EU directive standards. The 8-pin SOIC plastic/epoxy body is halogen-free compatible and supports the reflow profiles used in standard SMT assembly lines operating at 260°C peak temperature.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2680 | $2.27 |
| 16+ | $1.4175 | $22.68 |
| 54+ | $0.8505 | $45.93 |
| 250+ | $0.6142 | $153.55 |
| 500+ | $0.5836 | $291.80 |
| 1000+ | $0.5374 | $537.40 |
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