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WD3132 - 38V Step-Up White LED Driver

General Description

The WD3132 is a constant current, high efficiency LED driver.

Internal MOSFET can drive up to 10 white LEDs in series and 10S4P / 8S5P LEDs with 38V OVP.

Peak inductor current limit is larger than 1.5A.

Key Features

  • Input voltage range : 3~5.5V.
  • Open LED Protection : 38V.
  • Reference Voltage : 200mV (±5%).
  • Switching frequency : 600k Hz (Typ. ).
  • Efficiency : Up to 92% (10S4P).
  • Main switch current limit : 1.5A (Min. ).
  • PWM Dimming frequency : 5KHz to 200KHz.
  • PWM Dimming Duty : Min. 4% App.

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Datasheet Details

Part number WD3132
Manufacturer WillSEMI
File Size 718.16 KB
Description 38V Step-Up White LED Driver
Datasheet download datasheet WD3132 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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WD3132 High Efficiency, 38V Step-Up White LED Driver for Medium LCD Panel Backlight WD3132 Http//:www.sh-willsemi.com Descriptions The WD3132 is a constant current, high efficiency LED driver. Internal MOSFET can drive up to 10 white LEDs in series and 10S4P / 8S5P LEDs with 38V OVP. Peak inductor current limit is larger than 1.5A. For LED dimming, a Pulse-Width-Modulation (PWM) signal can be applied to the EN pin. The device operates at optimized 600k Hz fixed switching frequency to reduce output ripple, improve conversion efficiency, and allows use small external components. The WD3132 is available in SOT-23-6L package. Standard product is Pb-free and Halogen-free. Features  Input voltage range : 3~5.