LM3405 datasheet(3/29 Pages) TI1

Nome de Peças	LM3405

Descrição Electrónicos	Constant Current Buck Regulator

Download	29 Pages

Scroll/Zoom	100%

Fabricante Electrônico	TI1 [Texas Instruments]

Página de início	http://www.ti.com

Logo

3 / 29 page

LM3405

www.ti.com

SNVS429B – OCTOBER 2006 – REVISED MAY 2013

OPERATING RATINGS

(1)

VALUE / UNIT

VIN

3V to 15V

EN/DIM voltage

–0.5V to (VIN + 0.3V)

Boost to SW Voltage

2.5V to 5.5V

Junction Temperature Range

–40°C to +125°C

Thermal Resistance

θJA

(2)

118°C/W

(1)

Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings define the conditions under

which the device is intended to be functional. For specific specifications and test conditions, see the Electrical Characteristics.

(2)

Thermal shutdown will occur if the junction temperature (TJ) exceeds 165°C. The maximum allowable power dissipation (PD) at any

ambient temperature (TA) is PD = (TJ(MAX) – TA)/θJA . This number applies to packages soldered directly onto a 3" x 3" PC board with

2oz. copper on 4 layers in still air. For a 2 layer board using 1 oz. copper in still air,

θJA = 204°C/W.

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, VIN = 12V. Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the

junction temperature (TJ) range of -40°C to +125°C. Minimum and Maximum limits are specified through test, design, or

statistical correlation. Typical values represent the most likely parametric norm, and are provided for reference purposes only.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

VFB

Feedback Voltage

0.188

0.205

0.220

V

ΔVFB/(ΔVINxVFB)

Feedback Voltage Line Regulation VIN = 3V to 15V

0.01

%/V

IFB

Feedback Input Bias Current

Sink/Source

10

250

nA

VIN Rising

2.74

2.95

Under-voltage Lockout

V

UVLO

VIN Falling

1.9

2.3

UVLO Hysteresis

0.44

V

fSW

Switching Frequency

1.2

1.6

1.9

MHz

DMAX

Maximum Duty Cycle

VFB = 0V

85

94

%

RDS(ON)

Switch ON Resistance

VBOOST - VSW = 3V

300

600

m

Ω

ICL

Switch Current Limit

VBOOST - VSW = 3V, VIN = 3V

1.2

2.0

2.8

A

Quiescent Current

Switching, VFB = 0.195V

1.8

2.8

mA

IQ

Quiescent Current (Shutdown)

VEN/DIM = 0V

0.3

µA

Enable Threshold Voltage

VEN/DIM Rising

1.8

V

VEN/DIM_TH

Shutdown Threshold Voltage

VEN/DIM Falling

0.4

V

IEN/DIM

EN/DIM Pin Current

Sink/Source

0.01

µA

ISW

Switch Leakage

VIN = 15V

0.1

µA

Submit Documentation Feedback

3

Product Folder Links: LM3405

Nº de peça semelhante - LM3405

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
National Semiconductor ...	LM3405	447Kb / 2P	550kHz/1.6MHz 1A Constant Current Buck Regulator for Powering LEDs
	LM3405	483Kb / 20P	1.6MHz, 1A Constant Current Buck Regulator for Powering LEDs
	LM3405	181Kb / 6P	Powering and Dimming High-Brightness LEDs with the LM3405 Constant-Current Buck Regulator
LightKey Optoelectronic...	LM34058AB	140Kb / 3P	LM34058A/B Series . 3.40 inch 5x8 Dot Matrix LED Display
LightKey Optoelectronic...	LM34058ABRG	116Kb / 3P	3.40 inch 5x8 Dual Color Dot Matrix LED Display

More results

Descrição semelhante - LM3405

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Texas Instruments	LM3402	1Mb / 39P	[Old version datasheet] 0.5A Constant Current Buck Regulator
ON Semiconductor	NSI50350AST3G	201Kb / 7P	Constant Current Regulator Constant Current Regulator May, 2012 ??Rev. 3
Taiwan Memory Technolog...	T6335A	41Kb / 4P	Constant Current Regulator
Guangdong Kexin Industr...	T6335A	138Kb / 2P	Constant Current Regulator
American Bright OPTOELE...	AB-EZDC	197Kb / 5P	Constant Current regulator
ON Semiconductor	NSIC2020BT3G	176Kb / 9P	Constant Current Regulator June, 2012 ??Rev. 0
ON Semiconductor	NCV30161	252Kb / 10P	Constant-Current Buck Regulator for Driving High Power LEDs June, 2019 ??Rev. 1
Shenzhen Huazhimei Semi...	HM3441	241Kb / 8P	Synchronous Buck-Boost DC/DC Constant Output Current Regulator
ON Semiconductor	NCL30161	126Kb / 8P	Constant-Current Buck Regulator for Driving High Power LEDs May, 2013 ??Rev. 0
National Semiconductor ...	LM3405	483Kb / 20P	1.6MHz, 1A Constant Current Buck Regulator for Powering LEDs

More results

LM3405 Folha de dados(PDF) 3 Page - Texas Instruments

LM3405 Folha de dados(HTML) 3 Page - Texas Instruments

Nº de peça semelhante - LM3405

Descrição semelhante - LM3405

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Folha de dados Download

Ligação URL