MPQ2484GF-AEC1-Z

MPQ2484 is a flexible, multi-topology, asynchronous controller for LED lights with a high brightness. The MPQ2484 features a wide 4.5V to 45V input voltage (VIN) range, with a maximum boost voltage up to 75V. Peak current mode operation provides fast transient response and eases loop stabilization. The switching frequency (fSW) can be set by the FSET pins or it can be synchronized by a 100KHz to 2.2MHz external clock signal. The configurable frequency spread spectrum (FSS) function can periodically enable dither switching to improve EMI. The MPQ2484 provides dimming switch mode with a P-channel MOSFET. Robust fault protections include thermal shutdown, cycle-by-cycle peak current limiting, output overvoltage protection (OVP), output short circuit protection (SCP), LED open protection and LED short protection. Applications include automotive exterior LED indoor and outdoor LED lighting, commercial and industrial LED lighting.

• Built to handle automotive lighting, load dump up to 45V, cold crank down to 4.5V
• Maximum 75V boost output, multiple dimming modes, two-step dimming via the H/L pin
• External PWM dimming via the PDIM pin, integrated P-channel dimming MOSFET driver
• AEC-Q100 grade 1 qualified
• Low noise EMI/EMC, frequency spread spectrum, configurable or synchronizable switching frequency
• LED string anode/cathode to battery/ground short protection, overtemperature shutdown
• 5µA shutdown current, 1mA quiescent current external loop compensation, fault flag output
• Configurable current sense reference via an external setting resistor
• Fault indicator outputs an active logic low signal if fault occurs, available in TSSOP-28EP package
• Supports buck, boost and buck-boost configurations makes it suited for multi-purpose applications