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PT16752 - Multi-Topology Automotive Headlight LED Driver

Description

The PT16752 is a Headlight LED controller for automotive with high accuracy peak current mode.

The device implements a fixed-frequency peak current mode control technique with programmable switching frequency, slope compensation, and soft-start timing.

Features

  • Automotive AEC-Q100, Grade 1 (-40℃~+125℃) Qualified.
  • Input Voltage: 4.5V to 65V.
  • Output Voltage Range: 3V to 65V.
  • Low Input Offset Rail-to-Rail Current Sense Amplifier.
  • Better than ±4% LED Current Accuracy over -40°C to 140°C Junction Temperature Range.
  • High-Side Current Sense.
  • High-Impedance Analog LED Current Adjust Input (IADJ) With over 15:1 Contrast Ratio.
  • Integrated P-Channel MOSFET Driver for LED PWM Dimming, Compatible with Direct PWM Input.

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Datasheet preview – PT16752

Datasheet Details

Part number PT16752
Manufacturer PTC
File Size 2.03 MB
Description Multi-Topology Automotive Headlight LED Driver
Datasheet download datasheet PT16752 Datasheet
Additional preview pages of the PT16752 datasheet.

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Full PDF Text Transcription

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PT16752 Multi-Topology Automotive Headlight LED Driver DESCRIPTION The PT16752 is a Headlight LED controller for automotive with high accuracy peak current mode. The device implements a fixed-frequency peak current mode control technique with programmable switching frequency, slope compensation, and soft-start timing. A unique spreadspectrum modulation (SSM) can reduce emission (EMI) at the switching frequency and its harmonics. The controller is designed to support a range of step-up or step-down driver topologies. It incorporates a high voltage (65V) rail-to-rail current sense amplifier that can directly measure LED current using a high-side series sense resistor.
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