Monolithic Power Systems (MPS) MPQ7230 Buck-Boost/Buck Automotive LED Drivers

Monolithic Power Systems (MPS) MPQ7230 Buck-Boost/Buck Automotive Infrared LED Drivers are fixed-frequency, constant current devices with integrated power MOSFETs. The MPQ7230 supplies 1.2A of continuous output current, with excellent load and line regulation spanning a wide input supply range in a very compact solution. Furthermore, the MPQ7230 can be configured to buck mode to supply up to 3A of constant load current.

The MPS MPQ7230 Buck-Boost/Buck Automotive LED Drivers support low 10Hz PWM dimming frequencies to adjust infrared radiation (IR) in LED driver applications. The device also achieves compatibility with 30FPS, 60FPS, and 120FPS dimming. Full protection features are provided on the MPQ7230, including over-current protection (OCP), thermal derating (TD), and thermal shutdown (TSD).

The MPQ7230 is encapsulated in a space-saving QFN-19 (3mm x 4mm) package and requires a minimal number of readily available, standard external components.

Features

Built for a wide range of IR LED applications:
- Wide 6V to 42V operating input range
- 10Hz to 2kHz PWM dimming frequency
- Compatible with 30FPS, 60FPS, and 120FPS dimming
High performance for improved thermals:
- Configurable LED current without sensing resistor
- 44mΩ/40mΩ Low R_DS(ON) internal power MOSFETs
- High-efficiency synchronous mode operation
Optimized for EMC/EMI:
- Default 410kHz f_SW with spread spectrum
- EMI Reduction technique

Full protection features:
- LED Short (to GND and battery), LED open, output OVP with fault indication
- OCP with Latch-off mode
- Configurable thermal derating via NTC remote temperature sensing
- Thermal shutdown
Additional features:
- Configurable 1.2A current in BuckBoost Mode or 3A in buck mode
- 5% LED Current accuracy (700mA to 1.2A for buck-boost or 1A to 2A for the buck)
- Available in QFN-19 (3mm x 4mm) package
- Available in the wettable flank
- Available in AEC-Q100 grade 1

Applications

Infrared (IR) LED drivers for driver
Monitoring Systems (DMS)

Infrared (IR) illumination for automotive cameras
Surveillance systems

Monolithic Power Systems (MPS) MPQ7230 Buck-Boost/Buck Automotive LED Drivers

Features

Applications

Typical Application

husseinkey ELECTRONICS®

COMPANY