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LM3492 Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce LM3492
Description  Two-Channel Individual Dimmable LED Driver with Boost Converter and Fast Current Regulator
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM3492 Fiches technique(HTML) 5 Page - Texas Instruments

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LM3492, LM3492Q
www.ti.com
SNVS656C – SEPTEMBER 2010 – REVISED MAY 2013
ELECTRICAL CHARACTERISTICS (continued)
Specification with standard type are for TA = TJ = +25°C only; limits in boldface type apply over the full Operating Junction
Temperature (TJ) range. Minimum and Maximum are ensured through test, design or statistical correlation. Typical values
represent the most likely parametric norm at TJ = +25°C, and are provided for reference purposes only. Unless otherwise
stated the following conditions apply: VIN = 12V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
toff
OFF timer pulse width
145
350
ns
COMM PIN
VIOUT-OV
IOUT pin over-voltage threshold
COMM goes LOW during VIOUT rising,
5.6
6.7
7.8
V
other VIOUT = 1.2V
VCOMM-LOW
COMM pin at LOW
5 mA into COMM
0.7
V
ILEAK-FAULT
COMM pin Open Leakage
VCOMM = 5V
5
µA
Thermal Protection
TOTM
Over-temperature indication
TJ rising
135
°C
TOTM-HYS
Over-temperature indication hysteresis
TJ falling
15
°C
TSD
Thermal shutdown temperature
TJ rising
165
°C
TSD-HYS
Thermal shutdown temperature hysteresis
TJ falling
20
°C
Copyright © 2010–2013, Texas Instruments Incorporated
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