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LM346 Datasheet PDF

Part Series:
LM346 Series
Category:
LED Drivers
Description:
LED Driver 15V/18V/24V 28Pin HTSSOP EP Tube
Updated Time: 2023/09/27 08:48:02 (UTC + 8)

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LM3464MH/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Number of Pins
28 Pin
Case/Package
HTSSOP-28
Number of Outputs
4 Output
Input Voltage (DC)
12.0V ~ 80.0V
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LM3464MH/NOPB - TI Function Overview

The LM3464/64A is a 4-channel high voltage current regulator that provides a simple solution for LED lighting applications. The LM3464/64A provides four individual current regulator channels and works in conjunction with external N-channel MOSFETs and sense resistors to give accurate driving current for every LED string. Additionally, the Dynamic Headroom Control (DHC) output can be interfaced to the external power supply to adjust the LED supply voltage to the lowest level that is adequate to maintain all the string currents in regulation, yielding the optimal overall efficiency.
Digital PWM or analog voltage signals can be used to control the duty cycle of the all the channels. When analog control is used, the dimming frequency can be programmed via an external capacitor. A minimum duty cycle control is provided in the conditions that the analog dimming is configured as thermal feedback.
Protection features include VIN under-voltage lock-out, LED open/short circuit and over-temperature fault signaling to the system controller.
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