Monolithic Power Systems Inc. EV1909-TL-00A

Overview

EV1909-TL-00A from Monolithic Power Systems is a 64mm×64mm evaluation board for the MP1909 high-frequency half-bridge N-channel MOSFET gate driver IC, supporting 4.5–12V V_CC, 0–30V input voltage, 200kHz PWM switching, integrated bootstrap diode, and internal dead-time control to prevent shoot-through in DC/DC converter topologies.

For engineers reviewing the EV1909-TL-00A datasheet, EV1909-TL-00A pinout, EV1909-TL-00A application, or EV1909-TL-00A equivalent, this board enables rapid validation of MP1909's high-speed gate drive performance (83ns HS turn-on, 113ns LS turn-on propagation delay), UVLO-protected dual-channel operation, and thermal shutdown behavior under real-world load conditions.

Technical Context

The EV1909-TL-00A implements an H-bridge configuration using two MP1909GTL gate drivers (U1 and U2) in parallel, each driving complementary high-side and low-side MOSFETs (M1–M4) with synchronized PWM inputs and independent EN control. It incorporates discrete logic (U4/U5/U6) to generate inverted PWM signals and enable sequencing.

Board-level power delivery includes an MP2016DJ LDO (U3) providing regulated 3.6V for logic circuitry, while external 4.5–12V V_CC supplies the MP1909 drivers and 0–30V V_IN powers the half-bridge switches. Bootstrap capacitors (C1–C1C, C2–C2C) and integrated BST diodes support high-side floating operation up to 50V.

Key Specifications

Availability

EV1909-TL-00A is available at Aetrix Electronics and suitable for wireless charging transmitter design, drone power stage development, and avionics DC/DC converter prototyping requiring stable component supply, fast-turn evaluation cycles, and manufacturer-validated reference implementation.

Supply support for EV1909-TL-00A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with expertise in DC/DC converters, gate drivers, LED drivers, and motor controllers for consumer, industrial, and automotive applications.

The EV1909-TL-00A belongs to MPS's evaluation board product line, designed specifically to accelerate adoption of the MP1909 gate driver in high-frequency, space-constrained power conversion systems where shoot-through prevention and fast propagation timing are critical.

FAQ

What is the primary function of the EV1909-TL-00A evaluation board?

The EV1909-TL-00A is a hardware platform for evaluating the MP1909 half-bridge gate driver IC. It provides complete signal conditioning, power sequencing, and MOSFET drive circuitry to validate timing, dead-time behavior, UVLO thresholds, and thermal response under real operating conditions-without requiring custom PCB design.

Which IC does the board evaluate, and what package does it use?

The board evaluates the MP1909GTL, a high-frequency half-bridge N-channel gate driver housed in an SOT583-8 package (1.6mm × 2.1mm). Two MP1909GTL devices are mounted on the board (U1 and U2) to implement dual-channel, paralleled drive capability for higher current applications.

Can the EV1909-TL-00A operate at the MP1909's maximum rated switching frequency?

No-the board is characterized and tested at 200kHz per the Quick Start Guide, though the MP1909 IC itself supports up to 2.2MHz. Operation above 200kHz requires careful layout review, reduced parasitic inductance, and verification of gate drive strength and bootstrap recharge time, which are not pre-validated on this board.

Does the board include protection features beyond those of the MP1909 IC?

No-it implements only the intrinsic protections of the MP1909: under-voltage lockout on both high-side and low-side channels and thermal shutdown. No additional overcurrent, overvoltage, or desaturation detection circuitry is added; protection behavior reflects the IC's native functionality as verified on this platform.

How are the PWM1 and PWM2 outputs generated on this board?

PWM1 and PWM2 are generated using discrete logic: a 5.5V OR gate (U5) and dual inverters (U4 and U6). The single input PWM signal is inverted and combined to produce complementary, non-overlapping drive signals with built-in dead time, ensuring safe switching of the half-bridge MOSFETs without external timing components.

Is the MP2016DJ LDO used for any critical timing or biasing functions?

Yes-the MP2016DJ (U3) delivers a stable 3.6V rail to power the OR gate (U5) and inverters (U4/U6), ensuring consistent logic threshold margins and noise immunity for PWM signal generation. Its 42V input rating allows direct connection to the main V_IN rail, simplifying power architecture.