PHILIPS PCA9516AD

Mfr. Part

PCA9516AD

Manufacturer

NXP Semiconductors

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Note: Your input shows LUMILEDS, but PCA9516AD is widely recognized as an NXP I2C bus buffer/hub. If your internal system lists LUMILEDS, please verify with our sales team.

Detailed Description

PCA9516AD is an NXP I2C/SMBus bus buffer/hub in the Fm+ family used to split and isolate I2C segments so larger systems remain stable and fast. It provides bidirectional buffering for multiple SDA/SCL lines, reduces effective bus capacitance seen by each segment, and helps extend bus length and node count without violating I2C signal integrity. Typical supply is 2.3–5.5 V. Designed for up to Fast-mode Plus speeds (up to 1 MHz). Category: Integrated Circuits (ICs). Sub-class: Specialized ICs. Current stock quantity: 2200 units.

Key Features

Bidirectional I2C/SMBus buffering and hub functionality

Fm+ performance for fast buses (up to 1 MHz typical)

Supports wide VCC range (approx. 2.3–5.5 V)

Multiple isolated SDA/SCL ports for segmenting large I2C networks

Low offset and controlled rise/fall shaping to maintain I2C compliance

Compatible with multi-master I2C systems

ESD and latch-up protection per industry standards

RoHS-compliant, lead-free manufacturing

Key Advantages

Stabilizes large I2C networks by isolating capacitance between segments

Extends bus length and increases node count while keeping timing intact

Improves signal quality and reduces cross-coupling issues

Simple drop-in in front of long cable runs or dense sensor clusters

Reduces debug time in complex boards with many peripherals

Proven NXP Fm+ architecture for reliable high-speed I2C

Packaging

Type: SOP/TSSOP narrow body (SOP3.9 per provided data)

Case reference: “594” (vendor case code as provided)

Material: Epoxy mold compound body, matte tin-plated leads, lead-free, RoHS-compliant

Size: Approx. 3.9 mm body width; typical TSSOP/SOP footprint with 0.65 mm lead pitch

Pin configuration: Multiple SDA/SCL port pairs, VCC, GND, and control/enable pins (refer to datasheet for exact pinout and port count)

Thermal characteristics: Low power dissipation; typical junction-to-ambient thermal resistance in the ~100–150 °C/W range (board-dependent)

Electrical properties: Operating VCC roughly 2.3–5.5 V; supports Fast-mode Plus (up to ~1 MHz); I2C-compliant levels; input leakage in µA range; standard ESD robustness (HBM). See datasheet for tested limits and conditions.

Lifecycle

Status: Active in NXP’s portfolio in most regions and not flagged for near-term discontinuation at the time of writing

Alternatives and equivalents (choose based on needed port count, level shifting, and features):

- NXP PCA9515A (I2C bus repeater, simpler 2-port)

- NXP PCA9517A (I2C level translator/repeater, 3.3 V ↔ 5 V)

- NXP PCA9518A (I2C hub, higher port count)

- NXP PCA9546A (1-of-4 I2C switch/multiplexer) and PCA9548A (1-of-8)

- NXP PCA9615 / P82B96 (long-distance/differential I2C extenders)

- TI TCA9515A (repeater), TCA9517 (level shifting), TCA9546A/TCA9548A (switches)

If you need drop-in guidance or an exact functional match, contact our sales team on the Y-IC website. We will check current lifecycle, PCN/EOL notices, and recommend the best fit.

Key Application Areas

Large sensor arrays (temperature, pressure, motion, imaging) on one I2C backbone

Industrial control panels, PLC I/O expansion, factory sensors

Consumer electronics with many peripherals (touch, audio, camera, gyro)

Telecom/datacom cards and backplanes with long I2C runs

Servers and storage (power monitors, FRU/EEPROM management)

Automotive infotainment and ADAS sensor clusters (non-safety domains; design to automotive standards as required)

Medical devices and test equipment needing stable high-speed I2C

Datasheet

Y-IC provides the most authoritative datasheet and documentation for PCA9516AD on our product page. We recommend you download the datasheet here to get exact pinout, timing, electrical limits, and layout tips.

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