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NCP5050 - 4.5 W Flash White LED Boost Driver

Description

1 PGND POWER Power Ground: This pin is the power ground and carries the high switching current.

A high quality ground must be provided to avoid any noise spikes/uncontrolled operation.

density current flow in a limited PC

Features

  • High Efficiency Up to 88% for 2 LED (VF = 3.5 V by LED) at 200 mA.
  • High frequency Dimming PWM Control.
  • Maximum Vout of 20 V.
  • 1.7 MHz PWM DC/DC Converter.
  • Shut Down Control Facility with True.
  • Cutoff.
  • Open LED (Output Overvoltage) Protection.
  • 1.2 s Timer out Function.
  • Soft Start to Limit Inrush Current.
  • Small 3x3x0.8 mm WDFN Package.
  • These are Pb.
  • Free Devices Typical.

📥 Download Datasheet

Datasheet Details

Part number NCP5050
Manufacturer onsemi
File Size 189.34 KB
Description 4.5 W Flash White LED Boost Driver
Datasheet download datasheet NCP5050 Datasheet

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Full PDF Text Transcription

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NCP5050 4.5 W Flash White LED Boost Driver The NCP5050 is a high powered fixed frequency PWM boost converter optimized for constant current applications such as driving high−powered white LEDs. This device has been designed with high−efficiency for use in portable applications and is capable of driving up to 5 high power LEDs in series for camera flash or flashlight (torch) applications. To support the need of driving the LEDs in a high current pulse mode for flash as well as a continuous mode for focus or torch, a control pin and support circuitry is incorporated which allows the user to program two LED currents.
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