Würth Elektronik LDHM Power Module

Würth Elektronik MagI³C LDHM Step-Down High Current Module features a fully integrated current driver with passives all in one package. This LDHM driver module provides a ready-made solution that is highly efficient and can be used for a variety of single-string LED lighting applications. Würth MagI³C LDHM Step-Down High Current Module can dim the LEDs with an external PWM signal for easy brightness controlling. It operates at a constant switching frequency of 800kHz for low electromagnetic interference (EMI) and is designed according to the standard EN55015. The 178946001 Evaluation Board efficiently evaluates this LDHM module.

Features

  • Peak efficiency up to 95%
  • 300mA to 450mA LED current capability
  • 4.5V to 60V input voltage range
  • Drives 1 to 16 LEDs in series up to 60V input
  • ±3.5% typical LED current accuracy
  • Switching frequency fix at 800kHz
  • PWM dimming
  • High contrast ratio (min. PWM current <16μs)
  • Integrated magnetics solution for ease of use
  • Single exposed pad for best thermal performance
  • Connectable in parallel for higher current operations
  • Compatible with ceramic and low ESR Capacitors
  • Input undervoltage lockout protection (UVLO)
  • -40°C to +125°C temperature range

Applications

  • Indoor lighting
    • Spotlights
    • Downlights
  • Industrial lighting
    • High bay
    • Low bay
  • Outdoor lighting
    • Streetlights
    • Security lights
    • Tunnel lights

Videos

VDRM / LDHM Portfolio

Würth Elektronik LDHM Power Module
Publicēts: 2015-10-13 | Atjaunināts: 2022-03-11