4.0 A ISODrivers with 2.5 V VDDI and Safety Features

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Lead Time 36 weeks
Unit Price:$2.32
Minumum Qty: 1
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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.

Industrial Applications:
• Power Delivery Systems
• Motor Control Systems
• Isolated DC-DC Power Supplies
• Lighting Control Systems
• Solar and Industrial Inverters

Safety Approvals (Pending):
• UL 1577 recognized
• Up to 5000 Vrms for 1 minute
• CSA component notice 5A approval
• IEC 60950-1
• VDE certification conformity
• VDE 0884-10
• EN 60950-1 (reinforced insulation)
• CQC certification approval
• GB4943.1

Automotive Applications:
• On-board chargers
• Battery management systems
• Charging stations
• Traction inverters
• Hybrid Electric Vehicles
• Battery Electric Vehicles

Symmetry Electronics is an authorized Silicon Labs distributor.


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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/s
Programmable dead time
10200 ns
40600 ns
Deglitch option for filtering noise
Wide operating range
40 to +125 C
RoHS-compliant packages
SOIC-16 wide body
SOIC-16 narrow body
AEC-Q100 qualified
Automotive-grade OPNs available
AIAG compliant PPAP documentation support
IMDS and CAMDS listing support

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