MP3302

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2.5V-6Vin, 36Vout, 1.3A Boost WLED Driver


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产品描述

The MP3302 is a step-up converter designed for driving arrays of WLEDS from a single cell Lithium Ion battery. The MP3302 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves efficiency. The MP3302 is turned off if an over-voltage condition is present due to an open circuit condition. The MP3302 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload. The MP3302 is available in small 5-pin TSOT23 and 8-pin QFN (2mm x 3mm) packages.

产品特性

  • Internal Power MOSFET
  • Drives up to 10 Series White LEDs
  • Up to 87% Efficiency
  • Single Wire Dimming Control
  • 1.3MHz Fixed Switching Frequency
  • Open Load Shutdown
  • Low 200mV Feedback Voltage
  • UVLO, Thermal Shutdown
  • Internal 1.3A Current Limit
  • Available in TSOT23-5 and 2mm x 3mm QFN8 Packages

技术参数

  • Isw Limit (A)1.33
  • Ishutdown (µA)4
  • Vin (min) (V)2.5
  • Vin (max) (V)6
  • Channels1
  • fsw (min) (kHz)1300
  • fsw (max) (kHz)1300
  • Vout (max) (V)36
  • Vfb (V)0.2
  • GradeCatalog
  • Rds(on) (mΩ)500
  • PackageQFN-8 (2x3), TSOT23
  • Power MOSFETIntegrated
  • TopologyBoost
  • Dimming (Output)P-Dim, A-Dim
  • Iq (mA)0.69
  • Typical LCD Screen SizesSmall (<10")

评估板套件

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套件详情

The EV3302DD-00A is an evaluation board for the MP3302DD, a step-up converter designed for driving up to 27 white LEDs from a single cell lithium Ion battery. The EV board is optimized for the load of 3 white LEDs in series, 9 strings panel.

The MP3302 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 195mV feedback voltage reduces power loss and improves efficiency. The MP3302 monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition.

The MP3302 includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.

The MP3302 is available in small 8-pin QFN (2mm x 3mm) package.

US$ 50.00 + tax