NXP Semiconductors ASLx507 DC-to-DC Boost Converters

Time:2021-04-19 Reading:82

NXP Semiconductors ASLx507 DC-to-DC Boost Converters include single and dual phase ICs with a programmable

limp-home mode. These boost converter ICs include one or two integrated gate drivers which drive external power

MOSFETs and integrated Proportional-Integral (PI) controllers. The ASLx507 boost converters provide an SPI interface

for extensive control and diagnostic communication with an external microcontroller. These boost converters allow 

configurable operation in the limp-home mode if SPI communication with the microcontroller fails. The outputs of the

ASLx507 ICs operate according to predefined conditions stored in a non-volatile memory (NVM) programmable by the

customer in the limp-home mode.

FEATURES

  • AEC-Q100 grade 1 qualified
  • Limp-home mode ensuring system safety
  • Single phase on each output or double phase on one output
  • Two independently controlled output voltages with 3% accuracy
  • Fixed frequency operation via built-in oscillator from 125kHz to 700kHz
  • Programmable spread spectrum functionality
  • Gate switching is halted when overvoltage on output is detected
  • Programmable gate voltage
  • Low Electro-Magnetic Emission (EME)

        and high Electro-Magnetic Immunity (EMI)

  • Slope compensation to track frequency

        and output voltage

  • Programmable control loop compensation
  • Output voltage monitoring
  • Supply voltage measurement
  • Read-back programmed voltage and

          frequency  range via SPI

  • Junction temperature monitoring via SPI
  • HVQFN32 package outline

SPECIFICATIONS

  • 5.5V to 40V wide operating input range
  • 2.5V to 80V wide operating LED voltage
  • <5µA quiescent current @ 25°C
  • -40°C to 125°C operating ambient

          temperature range

       

APPLICATIONS

  • Automotive LED lighting:
    • Daytime running lights
    • Position or park light
    • Low beam
    • High beam
    • Turn indicator
    • Fog light
    • Cornering light
  • Industrial/consumer:
    • Lighting (interior)
    • Control panel
    • Battery charger
    • E-bike