Datasheet4U Logo Datasheet4U.com

HM5669 - step-up DC/DC converter

Description

HM5669 develops a step-up DC/DC converter that delivers an accurate constant current for driving LEDs.

Operating at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor.

Features

  • Input voltage range: 2.8 to 30V.
  • Switch current limit: 4A.
  • Drives LED strings up to 30V.
  • 1MHz fixed frequency minimizes the external components.
  • 20kHz~1MHz wide dimming frequency range for EN/PWM pin.
  • Internal softstart limits the inrush current.
  • Open LED over voltage protection.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
HM5666 WHITE LED Step-up Converter H&M semi
HM50 HM50 / HM51 Series / Miniature Power Inductors BI Technologies
HM50-xxx HM50 / HM51 Series / Miniature Power Inductors BI Technologies
HM500 HM500 Series / Ac/Dc Switching Modules Artesyn Technologies
HM50256 262144 X 1-Bit DRAM Hitachi

Other Datasheets by H&M Semiconductor

Part Number Description
HM5663B 2A 22V Step-Up Regulator
HM501C PFM boost DC-DC converter
HM50N06A N-Channel Enhancement Mode Power MOSFET
HM50N06D N-Channel Enhancement Mode Power MOSFET
HM50N08 N-Channel Enhancement Mode Power MOSFET

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.

View original datasheet text
HM5669 General Description HM5669 develops a step-up DC/DC converter that delivers an accurate constant current for driving LEDs. Operating at a fixed switching frequency of 1MHz allows the device to be used with small value external ceramic capacitors and inductor. The LED current is programmable through the external resistor. The device also supports PWM dimming for accurate LED current control. HM5669 is ideal for driving up to eight white LEDs in series or up to 30V. Ordering Information □(□□)□HM5669 Temperature Code Package Code Optional Spec Code Temperature Range: -40°C to 85°C Ordering Number Package type HM5669 DFN3X3-10 Note Typical Applications Features • Input voltage range: 2.
Published: |