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Evaluation System for the MAX77387

产品详情

主要特征

应用/用途

技术文档

数据资料 Evaluation System for the MAX77387 Aug 02, 2013

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主要特征

  • 2.5V to 5.5V Input Supply with Full Functionality
  • Dual-Phase Interleave Step-Up DC-DC Converter
    • True Shutdown Output
    • 2A Guaranteed Output Current for VIN > 2.5V and VOUT ≤ 4.0V
    • Adaptive Output-Voltage Regulation Ensuring Highest System Efficiency
    • Over 90% Peak Efficiency
    • 3.125% Minimum Duty Cycle
    • On-Chip Power MOSFET and Synchronous Rectifier
    • Up to 4MHz PWM Switching Frequency per Phase
    • Small 0.47µH Inductor per Phase
  • High-Side Torch/Flash LED Current Regulator
    • I2C-Programmable Flash Output Current (15.625mA to 1000mA in 15.625mA Steps)
    • I2C-Programmable Torch Output Current (3.91mA to 250mA in 3.91mA Steps for Non-PWM Dimming) (125mA to 1000mA in 125mA Steps for PWM Dimming with Programmable Duty Cycle from 3.125% to 25% in 3.125% Steps)
    • Low-Dropout Voltage (80mV, typ) at 1000mA
  • I2C-Programmable Flash Safety Timer
  • I2C-Programmable Torch Safety Timer
  • Dual Independent TX_MASK Inputs for Limiting Flash Current During Tx Events
  • Open/Shorted LED Detection
  • NTC Monitoring for LED Protection
  • Overvoltage Protection
  • MAXFLASH 2.0 Preventing System Latchup
  • Thermal-Shutdown Protection
  • < 1µA Shutdown Current
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Tested and Assembled

应用/用途

  • 蜂窝电话与智能电话
  • 平板电脑

描述

The MAX77387 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the highly integrated MAX77387 dual-phase adaptive step-up converter with 2A flash driver. The device’s flash driver integrates an adaptive 2A dual-phase PWM step-up DC-DC converter and two 1000mA white LED camera flash/movie high-side current regulators.

The EV system includes the EV kit and a MINIQUSB command module that provides the I2C interface to control individual output on/off, the step-up output voltage, movie/ flash current, and flash/torch timer duration settings.

技术文档

数据资料 Evaluation System for the MAX77387 Aug 02, 2013

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心