EVQ2489DN-00A

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Step-Down White LED Driver Evaluation Board
  • 数量 价格
  • 1
    US$ 50.00 /unit

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Product Description

The EVQ2489DN-00A is an evaluation board for the MPQ2489DN, a step-down converter designed in continuous current mode for driving the high brightness light emitting diodes (LEDs) from wide input voltage 8V-60V.

The MPQ2489 employs hysteretic control architecture to regulate a high accuracy LED current, which is measured through an external high-side current sensing resistor. Moreover, this control scheme provides optimized circuit stabilization and very quick response time without the loop compensation. Its low 200mV average feedback voltage reduces power loss and improves the converter efficiency.

The MPQ2489 implements PWM and Analog dimming with DIM pin. The MPQ2489 includes under-voltage lockout function, thermal overload protection preventing damage in the event of an output overload.

Product Features

  • Internal 65V MOSFET
  • Wide 8V to 60V Input Range
  • High Efficiency (Up to 97%)
  • Hysteretic Control
  • PWM & Analog Dimming
  • 1000:1 PWM Dimming Resolution
  • UVLO, Thermal Shutdown

Parametrics

  • IC Supported 1MPQ2489

Monolithic IC

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IC Details

The MPQ2489 is a high efficiency step-down converter designed in continuous current mode for driving the high brightness Light Emitting Diodes (LED) from wide input voltage 6V–55V. The MPQ2489 employs hysteretic control architecture to regulate a high accuracy LED current, which is measured through an external high-side current sensing resistor. Moreover, this control scheme provides optimized circuit stabilization and very quick response time without the loop compensation. Its low 202mV average feedback voltage reduces power loss and improves the converter efficiency. The MPQ2489 implements PWM and analog dimming together with DIM pin. The MPQ2489 includes thermal overload protection preventing damage in the event of an output overload. The MPQ2489 is available in small QFN6 (3x 3mm) and SOIC8E packages.