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LM3444_15 Datasheet, PDF (13/27 Pages) Texas Instruments – AC-DC Offline LED Driver
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Feature Description (continued)
LM3444
SNVS682D – NOVEMBER 2010 – REVISED DECEMBER 2015
IAVE
IL2 (t)
IL2-PK
'iL
IL2-MIN
t
tON
tOFF
Figure 13. Inductor Current Waveform in CCM
During the off-period denoted by tOFF, the current through L2 continues to flow through the LEDs through D10.
7.3.6 Thermal Shutdown
Thermal shutdown limits total power dissipation by turning off the output switch when the IC junction temperature
exceeds 165°C. After thermal shutdown occurs, the output switch does not turn on until the junction temperature
drops to approximately 145°C.
7.4 Device Functional Modes
This device does not have any additional functional modes.
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