LED Driver
MPQ7200A-AEC1

MPQ7200A-AEC1

42V, 1.2A Buck-Boost or 3A Buck, 410kHz with FSS, Synchronous LED Driver, AEC-Q100 Qualified

Description

The MPQ7200A is a fixed-frequency, constant-current, buck-boost LED driver with integrated power MOSFETs. It offers a compact solution that can achieve up to 1.2A of continuous output current (I_OUT) across a wide input voltage (V_IN) range, with excellent load and line regulation. The MPQ7200A can also be configured for buck mode to provide up to 3A of continuous load current.

Constant-frequency hysteretic control mode provides extremely fast transient response without loop compensation. Full protection features include over-current protection (OCP), output over-voltage protection (OVP), under-voltage protection (UVP), thermal derating, and thermal shutdown (TSD). The fault indicator outputs an active logic-low signal if a fault occurs.

The MPQ7200A requires a minimal number of readily available, standard external components, and is available in a space-saving QFN-19 (3mmx4mm) package.

Features & Benefits

Built for a Wide Range of Automotive LED Applications:
- Wide 6V to 42V Operating Input Voltage (V_IN) Range
- 100Hz to 2kHz Pulse-Width Modulation (PWM) Dimming Frequency
- Internal 500Hz Two-Step Dimming with Configurable Duty Cycle
- Available in AEC-Q100 Grade 1
High Performance for Improved Thermals:
- Configurable LED Current without Sensing Resistor
- 44mΩ/40mΩ Low R_DS(ON) Internal Power MOSFETs
- High-Efficiency Synchronous Mode
Optimized for EMC/EMI Reduction:
- 410kHz Default Switching Frequency (f_SW) with Frequency Spread Spectrum (FSS)
- EMI Reduction Technique
Full Protection Features:
- LED Short to GND Protection
- LED Short to Battery Protection
- LED Open Protection
- Output Over-Voltage Protection (OVP) with Fault Indication
- Over-Current Protection (OCP) with Latch-Off Mode
- Configurable Thermal Derating
- Thermal Shutdown
Fast Control Loop:
- Band-Band Control
Additional Features:
- Configurable 1.2A in Buck-Boost Mode or 3A in Buck Mode
- 5% LED Current Accuracy from 700mA to 1.2A for Buck-Boost or 1A to 2A for Buck
- Available in a QFN-19 (3mmx4mm) Package
- Available in a Wettable Flank Package

Active Part Numbers:

MPQ7200AGLE-AEC1-Z MPQ7200AGLE-AEC1-P

Meaning of P & Z

Evaluation Tools

MPQ7200GLE-AEC1 Evaluation Kit 42V, 1.2A Buck-Boost or 3A Buck Synchronous LED Driver, AEC-Q100 Qualified

The MPQ7200 is a high-frequency, constant-current, buck-boost LED driver with integrated power MOSFETs. It offers a very compact solution to achieve up to 1.2A of continuous output current, with excellent load and line regulation across a wide input supply range. The MPQ7200 can also be configured for buck mode to provide up to 3A of constant load current.

Constant frequency hysteretic control provides extremely fast transient response without loop compensation. The switching frequency can be fixed up to 2.3MHz in buck mode to reduce the current ripple and improve EMI. It can also be configured to as low as 1.15MHz for optimized efficiency and thermal performance in buck-boost mode.

Full protection features include over-current protection (OCP), output over-voltage protection (OVP) and under-voltage protection (UVP), thermal derating (TD), and thermal shutdown (TSD). The fault indicator outputs an active logic low signal if a fault condition occurs.

The MPQ7200 requires a minimal number of readily available, standard external components, and is available in a space-saving QFN-19 (3mmx4mm) package.

Design Resources

Symbol, Footprint & 3D Model

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