LM3431AQ, LM3431 - 3-Channel Constant Current LED Driver

National Semiconductor

LM3431AQ Datasheet Preview — This datasheet PDF includes multiple part numbers: LM3431AQ, LM3431. Please refer to the document for exact specifications by model.

Datasheet Details

Part number	LM3431AQ, LM3431
Manufacturer	National Semiconductor ↗
File Size	621.22 KB
Description	3-Channel Constant Current LED Driver
Datasheet	LM3431_NationalSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: LM3431AQ, LM3431. Please refer to the document for exact specifications by model.

LM3431AQ Product details

Description

The LM3431 is a 3-channel linear current controller combined with a boost switching controller ideal for driving LED backlight panels in space critical applications.

Features

LED cathode feedback to minimize regulator headroom and optimize efficiency. A DIM input pin controls LED brightness from analog or digital control signals. Dimming frequencies up to 25 kHz are possible with a contrast ratio of 100:1. Contrast ratios greater than 1000:1 are possible at lower dimming frequencies. The LM3431 eliminates audible noise problems by maintaining constant output voltage regulation during LED dimming. Additional features include LED short and open protection, fault delay/.

📁 LM3431AQ Similar Datasheet

LM3431 - 3-Channel Constant Current LED Driver (Texas Instruments)
LM3430 - Boost Controller (Texas Instruments)
LM3432 - 6-Channel Current Regulator (Texas Instruments)
LM3432B - 6-Channel Current Regulator (Texas Instruments)
LM3433 - Common Anode Capable High Brightness LED Driver (Texas Instruments)
LM3435 - Compact Sequential Mode RGB LED Driver (Texas Instruments)
LM340 - Three Terminal Positive Voltage Regulators (Motorola Inc)
LM340-N - 3-Terminal Positive Regulators (Texas Instruments)

Other Datasheets by National Semiconductor

LM3431A - 3-Channel Constant Current LED Driver
LM3431Q - 3-Channel Constant Current LED Driver
LM343 - High Voltage Operational Amplifier
LM3434 - Common Anode Capable High Brightness LED Driver
LM34 - Precision Fahrenheit Temperature Sensors
LM3401 - Quad Amplifiers

Published: Mar 19, 2010 |