Monolithic Power Systems Inc. EV3320A-Q-00A

Overview

EV3320A-Q-00A from Monolithic Power Systems is a fully assembled evaluation board for the MP3320A - a 4-channel, self-adaptive charge pump RGB LED driver with I²C interface, 1.8V–5.5V input range, 51mA per channel, and integrated 10-bit PWM + 8-bit analog dimming. It demonstrates real-time RGBW LED control in compact display backlighting applications.

For engineers reviewing the EV3320A-Q-00A datasheet, EV3320A-Q-00A pinout, EV3320A-Q-00A application, or EV3320A-Q-00A equivalent, this board enables rapid validation of MP3320A's phase-shifted PWM dimming, open/short LED protection, OVP (5.5V), and I²C address configuration via external resistor.

Technical Context

The EV3320A-Q-00A implements the MP3320A IC in a QFN-14 (2mm × 2mm) package and provides direct access to all control and power terminals: VIN (1.8–5.5V), VOUT (≤5.5V), SDA/SCL (I²C), and four independent LED outputs (RLED, GLED, BLED, WLED). The board includes decoupling capacitors (2.2µF ×4, 220nF ×2, 100nF), zero-ohm jumpers for configuration, and pre-mounted GL-5050RGB/GL-5050QWC LEDs.

It supports full register-level control via I²C - including per-channel enable/disable, 16 selectable addresses, 10-bit PWM frequency/duty cycle, 8-bit analog current setting, and phase-shift timing to suppress audible noise and inrush current during dimming transitions.

Key Specifications

Availability

EV3320A-Q-00A is available at Aetrix Electronics and suitable for RGBW backlight tuning, portable display prototyping, and human-machine interface (HMI) lighting validation requiring stable component supply and immediate out-of-box functionality.

Supply support for EV3320A-Q-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 design centers across the US, China, and Taiwan, and global distribution through authorized partners.

The MP3320A product line targets space-constrained, low-noise RGBW LED systems - delivering adaptive charge-pump efficiency and digital dimming precision for consumer displays, automotive interior lighting, and smart IoT indicators.

FAQ

What power supply requirements does the EV3320A-Q-00A board support?

The board accepts 1.8V to 5.5V DC input via the VIN and GND terminals. It is optimized for single-cell lithium-ion (3.0–4.2V), USB 5V, or regulated 3.3V/2.5V rails. Input capacitance (C1–C7) is pre-populated to ensure stability across the full range without external additions.

How do I configure the MP3320A registers on this evaluation board?

Use the official MPS MP3320A Configuration Tool (downloadable from monolithicpower.com) connected via I²C using SDA/SCL/GND pins. The tool provides GUI-based register mapping, real-time dimming preview, and fault status readback - no firmware coding required for basic evaluation.

Does the board include physical RGBW LEDs, and are they soldered?

Yes - the board integrates one pre-soldered GL-5050RGB (RGB tri-color) and one GL-5050QWC (white) SMD LED, both rated at 1.5W. Their anodes connect directly to VOUT/VDD, and cathodes route to MP3320A's channel outputs, enabling immediate visual verification of dimming behavior.

Can the EV3320A-Q-00A be used to evaluate multiple MP3320A devices simultaneously?

No - it hosts a single MP3320AGG IC (U1). However, its I²C address selection resistors (R1/R2/R3) allow configuration of up to 16 unique addresses, enabling daisy-chained evaluation when multiple boards are connected to one master controller with proper bus termination.

What protection features are accessible and testable on the board?

All integrated protections - open LED detection (via channel current drop), short LED (via overcurrent flag), OVP (5.5V threshold), and OTP (>150°C shutdown) - are observable through the MP3320A's FAULT pin (J3 pin 1) and register bits. Thermal pads and exposed copper on U1 aid in manual OTP stress testing.

Is PCB layout data or Gerber files available for this evaluation board?

Yes - MPS provides full Gerber files, assembly drawings, and schematic PDFs for EV3320A-Q-00A on their official website under the "Design Resources" tab for MP3320A. These files support custom derivative designs and compliance review.