TCA9517ADGKR, VSSOP-8, TI I2C Bus Buffer Repeater Wholesale
Description
Reviews
| Manufacturer | Texas Instruments (TI) |
|---|---|
| Part Number | TCA9517ADGKR |
| Product Status | ACTIVE / Production |
| Product Type | 2-Bit I²C/SMBus Level-Translating Buffer / Repeater |
| Number of Channels | 2 |
| Buffer Direction | Bidirectional |
| Protocol | I²C / SMBus |
| Maximum I²C Frequency | 400 kHz |
| A-Side Supply Voltage (VCCA) | 0.9 V to 5.5 V |
| B-Side Supply Voltage (VCCB) | 2.7 V to 5.5 V |
| Voltage Translation | 0.9 V to 5.5 V ↔ 2.7 V to 5.5 V |
| Supply Relationship | VCCA ≤ VCCB |
| Logic Type | Open-Drain I²C I/O |
| Enable Control | Active-High Repeater Enable |
| Enable Function | EN Low places I²C pins in a high-impedance state |
| I/O Voltage Tolerance | 5.5 V Tolerant I²C and Enable Inputs |
| Bus Capacitance | Up to 400 pF per connected I²C side |
| Standby / Powered-Off Behavior | I²C pins become high impedance when unpowered |
| Application Modes | Standard-mode and Fast-mode I²C |
| Multiple Controllers | Supported |
| Latch-Up Performance | Exceeds 100 mA per JESD 78, Class II |
| ESD Protection | Exceeds JESD 22 |
| Human-Body Model | 5500 V |
| Machine Model | 200 V |
| Charged-Device Model | 1000 V |
| Operating Temperature | -40°C to +85°C |
| Package | VSSOP (DGK), 8 Pins |
| Package Size | 3.0 mm × 4.9 mm |
| Package Area | 14.7 mm² |
| Lead Finish / Ball Material | NiPdAu / NiPdAuAg / Sn |
| MSL Rating | Level-1-260C-UNLIM |
| RoHS | Yes |
| REACH | Yes |
| TI Standard Pack | 2,500 pcs / LARGE T&R |
| Available Stock | 1,336,507 pcs |
|---|---|
| Pricing | Competitive wholesale pricing based on order quantity |
| Packaging | VSSOP (DGK), 8-pin, Tape & Reel |
| TI Standard Pack Quantity | 2,500 pcs / LARGE T&R |
| Supply | Available for bulk and production-volume orders |
- ✓ Large available stock for TCA9517ADGKR
- ✓ Competitive wholesale pricing for volume orders
- ✓ Suitable for mixed-voltage I²C and SMBus communication systems
- ✓ Compact VSSOP-8 package for space-constrained PCB designs
- ✓ Support for bulk purchasing and production requirements
- ✓ Pre-shipment inspection and order coordination support
The TCA9517ADGKR is a two-channel bidirectional I²C and SMBus buffer/repeater with integrated voltage-level translation from Texas Instruments. It is designed to connect I²C bus segments operating at different logic voltages while maintaining bidirectional communication between the two sides.
The A-side supports supply voltages from 0.9 V to 5.5 V, while the B-side supports 2.7 V to 5.5 V. This allows the device to translate signals between low-voltage processors or controllers and higher-voltage I²C peripheral devices without requiring separate direction-control logic.
The TCA9517A supports standard-mode and Fast-mode I²C operation up to 400 kHz. It buffers both SDA and SCL signals and can be used to connect I²C bus segments with a combined capacitance of up to 400 pF per side, helping extend bus connectivity while maintaining reliable communication.
The device includes an active-high enable input. When EN is low, the I²C pins are placed in a high-impedance state. The I²C and enable inputs are also 5.5-V tolerant, supporting mixed-mode signaling in systems with different logic supply voltages.
Powered-off high-impedance behavior allows the I²C pins to remain isolated when one or both supply rails are removed. This makes the TCA9517ADGKR useful in systems that require hot insertion, power sequencing or independent power domains.
- ✓ Two-channel bidirectional I²C / SMBus buffer
- ✓ Integrated voltage-level translation
- ✓ 0.9 V to 5.5 V A-side supply range
- ✓ 2.7 V to 5.5 V B-side supply range
- ✓ Supports voltage translation between 0.9 V to 5.5 V and 2.7 V to 5.5 V domains
- ✓ Up to 400 kHz I²C operating frequency
- ✓ Open-drain I²C I/O architecture
- ✓ Active-high repeater enable input
- ✓ 5.5-V tolerant I²C and enable inputs
- ✓ Supports standard-mode and Fast-mode I²C devices
- ✓ Supports multiple I²C controllers
- ✓ Buffers both SDA and SCL signals
- ✓ Supports up to 400 pF bus capacitance per I²C side
- ✓ High-impedance I²C pins when powered off
- ✓ High-impedance I²C pins when EN is low
- ✓ Footprint and functional replacement for PCA9515B
- ✓ Exceeds JESD 22 ESD protection requirements
- ✓ Exceeds 100 mA latch-up performance per JESD 78
- ✓ -40°C to +85°C operating temperature range
- ✓ Compact VSSOP-8 package
- ✓ Suitable for voltage-level shifting, bus buffering and I²C bus extension applications
