MPQ7235-AEC1中文资料36V, 3A, Synchronous Buck Automotive Infrared LED Driver, AEC-Q100 Qualified数据手册MPS规格书

描述 Description

The MPQ7235-AEC1 is a high-frequency, synchronous, rectified, step-down switch-mode LED driver with integrated power MOSFETs. It offers a compact solution that can achieve up to 1.5A of continuous LED current (ILED) and up to 3A of peak LED current (IPEAK), with excellent load and line regulation across a wide input voltage (VIN) range.

The device offers synchronous mode to achieve high efficiency. It also supports low pulse-width modulation (PWM) dimming frequencies at small dimming duty cycles. The MPQ7235-AEC1 can support PWM dimming frequencies as low as 10Hz to adjust infrared radiation (IR) LED driver applications. It is compatible with 30fps, 60fps, and 120fps dimming.

Current mode control provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP) and thermal shutdown.

The MPQ7235-AEC1 requires a minimal number of readily available, standard external components. It is available in a space-saving QFN-13 (2.5mmx3mm) package, and is AEC-Q100 qualified.

特性 Features

• Built for a Wide Range of Infrared (IR) LED Applications:
• Wide 4V to 36V Operating Input Voltage (VIN) Range
• Up to 1.5A of Continuous LED Current (ILED)
• Up to 3A of Peak LED Current (IPEAK) with Low Dimming Frequencies at Small Duty Cycles
• 10Hz to 2kHz Pulse-Width Modulation (PWM) Dimming Frequency
• Compatible with 30fps, 60fps, and 120fps Dimming

• High Performance for Improved Thermals:
• 85mΩ/50mΩ Low RDS(ON) Internal Power MOSFETs
• 0.2V Reference Voltage (VREF)
• Synchronous Mode for High-Efficiency

• Optimized for EMC and EMI Reduction:
• 2.2MHz Default Switching Frequency (fSW)
• EMI Reduction Techniques

• Full Protection Features:
• LED Short and LED Open Fault Indication
• Over-Current Protection (OCP) with Valley Current Detection
• Thermal Shutdown

• Additional Features:
• Forced Continuous Conduction Mode (FCCM)
• Internal Soft Start (SS)
• Available in a QFN-13 (2.5mmx3mm) Package
• Available in a Wettable Flank Package
• Available in AEC-Q100 Grade 1
• CISPR25 Class 5 Compliant