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PT4115 - 1.2A Step-down High Brightness LED Driver

Datasheet Summary

Description

The PT4115 is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage.

Features

  • Simple low parts count.
  • Wide input voltage range: 6V to 30V.
  • Up to 1.2A output current.
  • Single pin on/off and brightness control using DC voltage or PWM.
  • Up to 1MHz switching frequency.
  • Typical 5% output current accuracy.
  • Inherent open-circuit LED protection.
  • High efficiency (up to 97%).
  • High-Side Current Sense.
  • Hysteretic Control: No Compensation.
  • Adjustable Constant LED Current.
  • ESOP8 package for large output power.

📥 Download Datasheet

Datasheet preview – PT4115

Datasheet Details

Part number PT4115
Manufacturer PowTech
File Size 0.98 MB
Description 1.2A Step-down High Brightness LED Driver
Datasheet download datasheet PT4115 Datasheet
Additional preview pages of the PT4115 datasheet.

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Full PDF Text Transcription

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PT4115 30V, 1.2A Step-down High Brightness LED Driver with 5000:1 Dimming GENERAL DESCRIPTION The PT4115 is a continuous conduction mode inductive step-down converter, designed for driving single or multiple series connected LED efficiently from a voltage source higher than the total LED chain voltage. The device operates from an input supply between 6V and 30V and provides an externally adjustable output current of up to 1.2A. Depending upon the supply voltage and external components, the PT4115can provide more than 30 watts of output power. The PT4115 includes the power switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current, and a dedicated DIM input accepts either a DC voltage or a wide range of pulsed dimming.
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