The EVQ7210-U-00A is an evaluation board designed to demonstrate the capabilities of the MPQ7210-AEC1, a synchronous, dual-buck LED driver designed to operate as a constant current source. The MPQ7210-AEC1 can drive two independent channels of LEDs. Each channel can support up to 2A of current, and the channels can also be connected in parallel to support up to 4A of current.

The MPQ7210-AEC1’s switching frequency (f_SW) can be set to 220kHz, 420kHz, 1.1MHz, or 2.3MHz via the one-time programmable (OTP) memory. A higher f_SW can be achieved by using a smaller-value inductor and capacitor, but this also leads to power loss and possible thermal issues. High-frequency operation can be selected for high LED current applications. The thermal and cooling conditions should be validated on the system level.

The 60V input voltage (V_IN) allows a string of up to 12 LEDs to be connected in series per channel. When paired with a matrix manager, such as the MPQ7241-AEC1, the MPQ7210-AEC1 can achieve an ideal architecture for adaptive driving beams and matrix headlights.

Protection features include a failsafe (/FS) pin used to report over-current protection (OCP), under-voltage lockout (UVLO), early thermal warning, and thermal shutdown. These features can be used to assist the system in meeting functional safety requirements.

An integrated, 10-bit analog-to-digital converter (ADC) monitors V_IN, the output voltage (V_OUT), the internal bias supply voltage (V_CC), and junction temperature (T_J), and logs the data to the internal registers. These diagnostics can be read back by a microcontroller (MCU) via the SPI interface. The SPI interface can also be used to preset dimming profiles and mask undesired signals on the /FS pin.

The EVQ7210-U-00A is a fully assembled and tested, dual-buck LED driver evaluation board. It generates an LED current (I_LED) up to 2A per channel across a 4.5V to 60V V_IN range.

The MPQ7210-AEC1 is available in a QFN-26 (5mmx5mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.