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LM3421 Datasheet(PDF) 40 Page - Texas Instruments

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Part # LM3421
Description  N-Channel Controllers for Constant-Current LED Drivers
PDF  72 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3421 Datasheet(HTML) 40 Page - Texas Instruments

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LM3421, LM3421-Q1, LM3423, LM3423-Q1
SNVS574F – JULY 2008 – REVISED JULY 2015
www.ti.com
Typical Applications (continued)
Method 2: Connect a controlled current source as detailed in the Analog Dimming section to the CSH pin.
Increasing the current sourced into the CSH node will decrease the LEDs from the nominal ILED to zero current in
the same manner as the thermal foldback circuit.
40
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Copyright © 2008–2015, Texas Instruments Incorporated
Product Folder Links: LM3421 LM3421-Q1 LM3423 LM3423-Q1



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