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PT4112

Part Number	PT4112
Manufacturer	PowTech
Description	WLED Driver
Published	Jul 21, 2014
Detailed Description	PT4112 WLED Driver for Notebook Display GENERAL DESCRIPTION The PT4112 is a step-up converter with current sources capab...
Datasheet	PT4112 PDF File

Overview

PT4112 WLED Driver for Notebook Display GENERAL DESCRIPTION The PT4112 is a step-up converter with current sources capable of driving six parallel strings of up to 10 series-connected WLEDs.
Each string is terminated with ballast that achieves ±1.
5% current regulation accuracy, ensuring even brightness for all WLEDs.
The PT4112 generates an output voltage to drive up to totally 60 WLEDs from a 5V to 25V input source; in addition, the output voltage is automatically adjusted to WLED forward voltage to achieve good efficiency.
The PT4112 supports pulse width modulation (PWM) brightness dimming.
A PWM signal input on the BRT pin could directly turn LED lights on/off.
By freezing the circuit sta...

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