MP2489

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6V-60V 1A Buck LED Driver with Hysteretic Control , DC and PWM Dimming Control



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产品描述

The MP2489 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–60V. The MP2489 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 MP2489 implements PWM and analog dimming together with DIM pin.  The MP2489 includes thermal overload protection preventing damage in the event of an output overload.  The MP2489 is available in small QFN6 (3x 3mm), TSOT23-5 and SOIC8E packages.

产品特性

  • Guaranteed Industrial/Automotive Temp
  • Internal 60V MOSFET
  • Wide 6V to 55VInputRange
  • ³1A Output Current
  • High Efficiency (>95%)
  • Hysteresis Control
  • PWM & Analog Dimming
  • 1000:1 PWM Dimming Resolution
  • Thermal Shutdown
  • Inherent Open LED Protection
  • Short LED Protection
  • Available in QFN6(3x 3mm) and SOIC8E Packages
  • Available in AEC-Q100 Grade 1

技术参数

  • Vin (min) (V)6
  • Vin (max) (V)60
  • Vout (max) (V)57
  • Iout (max) (A)1
  • SyncNo
  • Open LED ProtectionYes
  • PackageQFN-6 (3x3)
  • Rds(on) (mΩ)500
  • GradeCatalog
  • TypeLow-Side Buck
  • Vfb (V)0.2
  • fsw (max) (kHz)600
  • Iq (mA)1
  • Ishutdown (µA)65

Step-Down White LED Driver Evaluation Board

The EV2489DQ-00A is an evaluation board for the MP2489DQ, a step-down converter designed in continuous current mode for driving the high brightness light emitting diodes (LEDs) from wide input voltage 8V-36V. If higher input voltage (up to 60V) is required, use B190 instead of B140 in D1-D5.

The MP2489 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 MP2489 implements PWM and Analog Dimming with DIM pin. The MP2489 includes under-voltage lockout function, thermal overload protection preventing damage in the event of an output overload.

US$ 25.00 + tax



Step-Down White LED Driver Evaluation Board

The EV2489DQ-01A is an evaluation board for the MP2489DQ, a step-down converter designed in continuous current mode for driving the high brightness light emitting diodes (LEDs) from wide input voltage 8V-36V. If higher input voltage (up to 60V) is required, use B190 instead of B140 in D1-D5.

The MP2489 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 MP2489 implements PWM and Analog Dimming with DIM pin. The MP2489 includes under-voltage lockout function, thermal overload protection preventing damage in the event of an output overload.

US$ 25.00 + tax



Step-Down White LED Driver Evaluation Board

The EV2489GN-00A is an evaluation board for the MP2489GN, 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 MP2489 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 MP2489 implements PWM and Analog dimming with DIM pin. The MP2489 includes under-voltage lockout function, thermal overload protection preventing damage in the event of an output overload.

US$ 25.00 + tax


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