EV3309A-Q-00A

新产品
2.7V - 5.5V Input, 35V Output, Programmable Fsw, White LED Driver With 12C Interface Evaluation Board
  • 1
    US$ 75.00 /unit

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产品描述

The MP3309A is a WLED step-up converter for 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an external low-side resistor. The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements. To connect an external Schottky accomplishes the non-synchronous mode for heavy load to improve the thermal performance.

The MP3309A features a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming.

In addition, the MP3309A has LED open protection, cycle-by-cycle current limit protection and thermal shutdown protection. The I2C interface can set the over-voltage protection threshold, analog dimming and read IC status. MP3309A is available in QFN10 3*3mm package.

产品特性

  • 2.7V-to-5.5V Input Voltage
  • Low 200mV Feedback Voltage with ±1% Accuracy
  • Selectable Synchronous or Non-synchronous Mode Thru I2C
  • 400kHz I2C-Compatible Interface
  • Analog and PWM Dimming
  • Programmable Switching Frequency
  • Programmable Over Voltage Protection Point
  • Software- or Hardware-Enable Function
  • UVLO, Thermal Shutdown
  • Available in 3×3mm QFN 10 package

技术参数

  • IC Supported 1MP3309

2.7V-5.5Vin, 1.5A, Synchronous Boost WLED Driver for Tablet and Smart Phone

The MP3309 is a WLED step-up converter for 2.7V-to-5.5V input that uses peak-current mode to regulate the LED current sensed through an external, low-side resistor. The 200mV feedback voltage and synchronous rectification reduces power loss and reduces PCB space requirements. For non-synchronous mode, setting an internal register can disable the rectifier MOSFET to save driver losses.
The MP3309 features a programmable switching frequency to optimize efficiency. It supports both analog and PWM dimming.
In addition, the MP3309 has LED open protection, cycle-by-cycle current limit protection, Under voltage protection and thermal shutdown protection -. The I2C interface can set the protection indication bits and over-voltage protection point.