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600V gate driver adds extra channel

Posted: 22 Jan 2008 ?? ?Print Version ?Bookmark and Share

Keywords:three-phase gate-driver IC? ground fault protection? MOSFET?

International Rectifier has released a protected 600V, three-phase gate-driver IC with ground fault protection. The IRS26302D gate driver also features an additional gate-drive channel for a power factor correction (PFC) switch or inverter brake, making it well-suited to medium-power appliance motor control and other general-purpose three-phase inverter applications.

The IRS26302D integrates power MOSFET/IGBT gate drivers with three high-side and three low-side referenced output channels to provide 200 mA/350 mA drive current at up to 20-V MOS gate drive capability operating up to 600 V. An additional low-side driver is provided for a PFC switch or inverter brake.

In addition to ground fault protection, the gate driver incorporates negative Vs immunity circuitry to protect the system from catastrophic events that can occur during high-current switching and short-circuit conditions, which are critical features for industrial systems that require high levels of reliability, said IR. The device also integrates an advanced input filter to reject noise and reduce distortion, which improves system performance in many motor control applications.

To address the needs of space-constrained applications and to simplify design, the IRS26302D features integrated bootstrap functionality. This functionality can reduce the bootstrap power supply from six components to three, while providing VBS overvoltage protection for the system through the use of additional integrated intelligent protection circuitry, said IR.

Part of IR's G5 HVIC platform, the IRS26302D features undervoltage lock-out protection, integrated deadtime protection, shoot-through protection, a shutdown input and fault-reporting in addition to the overcurrent and overtemperature detection input. The device is compatible with 3.3V input logic.

Available in a 44-pin PLCC package, the IRS26302D is RoHS compliant. Pricing starts at $2.44 each in quantities of 100,000 units. Production orders are available immediately.

- Gina Roos

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