Model MPQ18831 -Automotive, Isolated, Dual-Input Half-Bridge Gate Driver

The MPQ18831 is an isolated half-bridge gate driver solution with up to a 4A source and 8A sink peak current capacity. The gate driver is designed to drive power switching devices with a short propagation delay and pulse-width distortion. By utilizing MPS's proprietary, capacitive-based isolation technology, the driver can provide up to 5kVRMS of isolation voltage (per UL 1577) with a wide-body SOIC package. In addition, the common-mode transient immunity (CMTI) between the input side and output driver exceeds 150kV/μs. With these advanced features, the drivers operate with high efficiency, high power density, and robustness across a wide variety of automotive power applications. The MPQ18831 integrates dual-channel gate drivers in one package. Each output can be grounded to separate grounds or connected to a positive or negative voltage reference. The secondary topology can be configured as a half-bridge high-side (HS) or low-side (LS) driver that is controlled by two independent input signals. To prevent shoot-through in the half-bridge driver, the MPQ18831 provides a configurable dead time (DT) set by an external resistor.