MPQ18914

MPQ18914

30V, High-Frequency Transformer Driver for Automotive Applications, AEC-Q100 Qualified

概要

The MPQ18914 is a high-frequency, half-bridge transformer driver. It is ideal for use as the primary-side MOSFET in isolated power supplies for biasing silicon carbide (SiC) field-effect transistors (FETs), silicon FETs, and insulated gate bipolar transistors (IGBTs). The MPQ18914 simplifies isolated biased supply design by integrating the control, switching power stage, and protection circuitry into a single device. This topology supports designs with a high isolation voltage and small interwinding capacitance.

The MPQ18914 features soft switching to optimize EMI performance. It supports a wide 5V to 30V input voltage (V_IN) range, and can survive surges of up to 50V. The device has a wide 400kHz to 3MHz configurable switching frequency (f_SW) range, which reduces solution size and optimizes efficiency in resonant topologies (e.g. LLC converters).

Full safety and protection features include input over-voltage protection (OVP), over-current protection (OCP), and fault indication. The device’s built-in soft start (SS) controls the inrush current during start-up.

The MPQ18914 is available in a QFN-10 (2mmx2.5mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.

機能と利点

Advanced Protection Features:
- Over-Current Protection (OCP)
- Short-Circuit Protection (SCP)
- Over-Voltage Protection (OVP)
- Over-Temperature Protection (OTP)
- Fault Reporting
- Under-Voltage Lockout (UVLO)
- Supports Up to 5kV Isolation Voltage
Low EMI:
- Soft Switching
- Flip-Chip Package
- Low Interwinding Capacitance
Small Solution Size:
- 400kHz to 3MHz Configurable Switching Frequency (f_SW)
- Available in a Tiny QFN-10 (2mmx2.5mm) Package with Wettable Flanks