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Product Attributes

Introduction

The Si8239x combines two isolated drivers with either an independent input control or a single input into a single package for high power applications. All drivers operate with a 2.5 V input VDD and a maximum drive supply voltage of 24 V. The Si8239x isolators are ideal for driving power MOSFETs and IGBTs used in a wide variety of switched power and motor control applications. These drivers utilize Silicon Laboratories' proprietary silicon isolation technology, supporting up to 5 kVRMS withstand voltage. This technology enables high CMTI (100 kV/μs), lower prop delays and skew, reduced variation with temperature and age and tighter part-to-part matching. It also offers some unique features such as an output UVLO fault detection and feedback, and automatic shutdown for both drivers, an EN (active high) pin, a safe delayed start-up time of 1 ms, fail-safe drivers with default low in case of VDDI power-down, and dead time programmability. The Si8239x family offers longer service life and dramatically higher reliability compared to opto-coupled gate drivers. Automotive Grade is available for certain part numbers. These products are built using automotive-specific flows at all steps in the manufacturing process to ensure the robustness and low defectivity required for automotive applications.

Features

• Two isolated drivers in one package
• Up to 5 kVRMS isolation
• Up to 1500 VDC peak driver-to-driver differential voltage
• Enhanced output UVLO safety
• Status feedback to controller
• Both outputs drive low on UVLO
• EN pin for enhanced safety
• Extended VDDI: 2.5 V - 5.5 V
• PWM and dual driver versions
• 4.0 A peak output
• High electromagnetic immunity
• Extended start-up time (1ms) for safe initialization sequence
• 30 ns propagation delay
• Transient immunity: 100 kV/μs
• Programmable dead time: 10–200 ns, 40–600 ns
• Deglitch option for filtering noise
• Wide operating range: -40 to +125 °C
• RoHS-compliant packages: SOIC-14/-16 wide body, SOIC-16 narrow body
• AEC-Q100 qualified
• Automotive-grade OPNs available
• AIAG compliant PPAP documentation support
• IMDS and CAMDS listing support

Applications

• Power Delivery Systems
• Motor Control Systems
• Isolated DC-DC Power Supplies
• Lighting Control Systems
• Solar and Industrial Inverters
• On-board chargers
• Battery management systems
• Charging stations
• Traction inverters
• Hybrid Electric Vehicles
• Battery Electric Vehicles