ISO5851 (2)
The ISO5851 is available from Texas Instruments at Xecor. Designed for driving IGBTs and MOSFETs with high precision and reliability, the ISO5851 offers features such as 5.7-kV RMS reinforced isolation, 2.5-A source and 5-A sink currents, and active protection mechanisms like desaturation fault detection and active Miller clamp. Available in a 16-pin SOIC package, it is ideal for industrial motor drives, renewable energy systems, and power supply applications. Whether used in electric vehicles, solar inverters, or industrial automation, this series ensures robust performance, safety, and efficiency for demanding high-voltage applications. Xecor is an authorized distributor for Texas Instruments. Please view our extensive selection of the ISO5851 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| ISO5851DWR | Driver 5A 1-OUT Inv/Non-Inv 16-Pin SOIC T/R | SOIC-16 | 4,808 | |
| ISO5851QDWRQ1 | High-quality automotive driver for demanding application | SOIC-16 | 2,880 |
Key Featrues
Fast Propagation Delay: The short propagation delay of 76 ns (typical) and 110 ns (maximum) allows for precise control of the output stage, improving switching accuracy and efficiency in high-frequency applications.
Active Miller Clamp: The 2-A active Miller clamp prevents unintended turn-on of the IGBT during high-voltage transients by providing a low-impedance path for Miller current, enhancing reliability in dynamic switching scenarios.
Desaturation Fault Detection and Protection: The internal desaturation (DESAT) fault detection identifies overload conditions in the IGBT and immediately drives the gate output low, protecting the device from damage and improving system safety.
Undervoltage Lockout (UVLO) with Ready (RDY) Pin: The UVLO circuits monitor both input and output supplies, ensuring the gate driver operates only when sufficient voltage is available. The RDY pin provides clear indication of readiness, enhancing system reliability and preventing malfunctions.
Applications
Renewable Energy Inverters: The ISO5851 is well-suited for use in solar inverters and wind turbine converters. Its high common-mode transient immunity (CMTI) and robust isolation make it capable of handling the high-voltage switching environments typical in renewable energy systems, while its fault detection and reporting features enhance system safety and reliability.
Uninterruptible Power Supplies (UPS): The ISO5851 can be used in UPS systems to drive power switches in the inverter stage. Its fast propagation delay and high peak output current ensure efficient and precise control of IGBTs or MOSFETs, while its undervoltage lockout and fault reporting capabilities provide added protection and system monitoring.
Industrial Power Supplies: The ISO5851 is an excellent choice for isolated gate driving in industrial power supplies. Its ability to operate over a wide temperature range and its compliance with safety certifications (e.g., UL, CSA, TUV) make it suitable for demanding environments, while its active Miller clamp and short-circuit protection features ensure stable and safe operation.
These applications leverage the ISO5851's high-performance characteristics, including its reinforced isolation, active protection features, and robust design, making it a versatile solution for high-voltage and high-reliability systems.
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