A low on-resistance MOSFET and headroom voltage are provided to improve efficiency. The MPQ3364 has a standard I2C digital interface for easy use. The switching frequency (fSW) can be configured via a resistor, I2C interface, or external clock.
The MPQ3364 provides analog, PWM, and mix dimming modes with a PWM input. The dimming mode can be selected via the I2C interface or the MIX/AD pin. The device also has a phase shift function to eliminate noise during PWM dimming.
Robust protections are included to guarantee the safe operation of the device. Protection modes include over-current protection (OCP), overvoltage protection (OVP), over-temperature protection (OTP), LED short, and LED open protection. The MPQ3364 can automatically decrease the LED current at higher temperatures.
The Monolithic Power Systems (MPS) MPQ3364-AEC1 WLED Driver is available in a compact 4.0mm x 4.0mm Quad Flat No-Lead (QFN) package and is AEC-Q100 qualified for use in automotive applications.