Monolithic Power Systems, Inc. products

The MP9929 is a high-voltage, synchronous, step-down, switching regulator controller that can directly step down voltages up to 100V. The MP9929 uses pulse-width modulation (PWM) current control architecture with accurate cycle-by-cycle current limiting. It is capable of driving dual N-channel MOSFET switches. Advanced asynchronous modulation (AAM) mode enables nonsynchronous operation and pulse-frequency modulation (PFM) mode to optimize light-load efficiency. The MP9929’s operating frequency can be configured by an external resistor or synchronized to an external clock for noise-sensitive applications. Fault protections include precise output over-voltage protection (OVP), output over-current protection (OCP), and thermal shutdown. The MP9929 is available in a QFN-26 (4mmx6mm) package.

The MP18811 is an isolated, single-channel gate driver solution with up to 4A of source and 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 3kVRMS of withstand voltage (per UL1577). In addition, the common-mode transient immunity (CMTI) rating between the input side and output driver exceeds 100kV/μs. With these advanced features, the driver provides high efficiency, high power density, and robustness to a wide variety of power applications. The MP18811 provides primary on/off control and split outputs that can individually control the source and sink driving capacity. A wide primary-side VDDI supply range allows the driver to be interfaced with 3.3V or 5V digital controllers. The secondary-side driver accepts up to a 30V supply. All of the supply voltage pins feature various under-voltage lockout (UVLO) protection levels. The MP18811 is available in a standard, narrow-body (NB) SOIC-8 package.

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.

The EVmEZDPD4506A is the evaluation board for the mEZDPD4506A configurable DC/DC power module with up to 6A and 0.6-24V output voltage. This part has a multiple time programmable memory and can be programmed with the Virtual Bench Pro GUI software available below. Use the GUI to configure and monitor part performance such as Vin, Vout, Iout & Temperature. Current and output voltage values are all that is needed to start evaluation. Additional parameters have default settings and can be re-configured as needed.