MP3331

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2A Boost WLED Driver for Smart Phone Camera Flash


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产品描述

The MP3331 is a highly-efficient, 2A, single flash LED driver in a very compact package for high-resolution camera phones that improves image and video quality in low-light environments. The device operates in a 1/2/3/4MHz synchronous DC-DC boost converter to provide an optimized solution for smaller PCB spaces with higher efficiency. The MP3331 features a standard I2C interface, single LED channel, rich protection modes, and high power density and performances. It supports flash/assist light/torch/indicator/5V DC modes. The cathode of the flash LED is referenced to GND, which improves thermal performance. It is available in a WLCSP9-1.7mm x 1.7mm package.

产品特性

  • 2.7V~5.5V Input Voltage
  • 1/2/3/4MHz Selectable Switching Frequency
  • Switching Frequency Foldback Function
  • 400kHz I2C Compatible Interface
  • Standby/Flash/Assist/Torch/Indicator/5V DC Mode
  • FLASH MODE:
  • Up to 2A Programmable Current with +/-7% Accuracy
  • ASSIST/TORCH MODE:
  • Up to 508mA Programmable Current with +/-7% Accuracy
  • INDICATOR MODE:
  • Works in 31.5kHz PWM Dimming Mode with 2/16, 3/16, 4/16, 5/16 Duty Cycle
  • 5V DC MODE:
  • Fixed 5V Output Voltage
  • External Torch/Strobe Pin
  • Low-Battery Voltage Protection
  • Pre-Flash for Auto Detect Load Condition
  • LED Short/Open Protection
  • VOUT-GND Short Protection
  • Over-Voltage Protection
  • Input to Output Disconnection Function
  • Over-Temperature Protection
  • Input Under-Voltage Lockout Protection
  • Thermal Protection
  • Available in a WLCSP9-1.7mm x 1.7mm Package

技术参数

  • GradeCatalog
  • PackageWLCSP-9 (1.7x1.7)
  • fsw (min) (MHz)1
  • Iout (max) (A)2
  • Vin (max) (V)5.5
  • Vin (min) (V)2.7
  • Ishutdown (µA)4

2A Flash Driver With I²C Interface Evaluation Board

The MP3331 is a single 2A flash LED driver with very compact package, high efficiency for high-resolution camera phones to improve image and video quality in low light environment. The device operates in 1/2/3/4MHz synchronous DCDC boost converter to provide an optimized solution for smaller PCB space and higher efficiency.

The MP3331 features standard I2C interface, single LED channel, rich protection modes and high power density and performances. It supports flash/assist light/torch/indicator/5V DC modes.

The cathode of the flash LED is referenced to GND which is better for layout to improve thermal performance. It is available in WLCSP9-1.7X1.7mm package.

US$ 75.00 + tax