Datasheet Texas Instruments LM3444MM/NOPB

AC-DC Offline LED Driver 10-VSSOP -40 to 125

Datasheets

PDF, 1.1 Mb, Revision: D, File published: Dec 31, 2015

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Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Dimming Method	Analog
Input Voltage	AC/DC Type
Iout(Max)	2 A
Iq(Typ)	1.58 mA
Operating Temperature Range	-40 to 125 C
Package Group	VSSOP
Package Size: mm2:W x L	10VSSOP: 15 mm2: 4.9 x 3(VSSOP) PKG
Power Factor Correction	Active,Passive Min
Rating	Catalog
Regulated Outputs	1
Special Features	Adjustable Switch Frequency,Thermal Shutdown
Switching Frequency(Max)	1000 kHz
Switching Frequency(Min)	30 kHz
Topology	Buck,Flyback
Type	Inductive
Vin(Max)	13 V
Vin(Min)	8 V
Vout(Max)	60 V
Vout(Min)	9 V
Vref	0.75 V

RoHS

Compliant

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AN-2097 LM3444 - 230VAC, 8W Isolated Flyback LED Driver (Rev. F)
PDF, 5.4 Mb, Revision: F, File published: May 1, 2013
This is a four-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency.
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PDF, 6.4 Mb, Revision: E, File published: May 1, 2013
This demonstration board highlights the performance of a LM3444 based Flyback LED driver solution that can be used to power a single LED string consisting of 4 to 8 series connected LEDs from an 90 VRMS to 135 VRMS, 60 Hz input power supply. The key performance characteristics under typical operating conditions are summarized in this application note.
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AN-1656 Design Challenges of Switching LED Drivers (Rev. A)
PDF, 171 Kb, Revision: A, File published: May 3, 2013
Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and

Series: LM3444 (4)

Semiconductors > Power Management > LED Driver > Illumination & General Lighting LED Driver