LM3519 datasheet(3/20 Pages) TI1

部品番号	LM3519

部品情報	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control

Download	20 Pages

Scroll/Zoom	100%

メーカー	TI1 [Texas Instruments]

ホームページ	http://www.ti.com

Logo

3 / 20 page

LM3519

www.ti.com

SNVS394A – AUGUST 2005 – REVISED SEPTEMBER 2005

Electrical Characteristics

(1) (2)

Limits in standard typeface are for TJ = +25°C. Limits in bold typeface apply over the full operating junction temperature

range (

−40°C ≤ TJ ≤ +125°C). VIN = 3.6V, unless otherwise stated.

Uni

Symbol

Parameter

Conditions

Min

Typ

Max

ts

IQ

Supply Current

Shutdown: VEN = 0V

0.1

Not Switching: VEN = 1.8V

360

500

µA

Switching: VEN = 1.8V, LED_rtn current =

550

900

30mA

ILED(TOL)

LED Current Tolerance/Variation

VIN = 3.6V, 2.2μH,

–10

5.5

10

%

4LEDs

OVP

Over-Voltage Protection Threshold

OVP ON

18

18.9

20

V

OVP OFF

17.8

18.6

19.8

ILIM

Switch Current Limit

L = 2.2µH

750

mA

RDS(ON)

Power NMOS Switch ON Resistance

455

m

Ω

ILEAKAGE

Switch Leakage

VSW = 3.6V, VEN = 0V

0.1

2

µA

RLED_rtn(ON)

LED_rtn NMOS Switch ON Resistance

8.0

Ω

FS

Switching Frequency

ILED = 20 mA , L = 1μH

MH

5.4

4LEDs

z

IEN

Enable Pin Bias Current (3)

VEN = 0V

0.1

µA

VEN = 1.8V

1.1

2

En

Enable Threshold

Device On

0.9

V

Device Off

0.3

(1)

Absolute maximum ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under which

operation of the device is guaranteed. Operating Ratings do not imply guaranteed limits. For guaranteed performance limits and

associated test conditions, see the Electrical Characteristics table.

(2)

Min and max limits are guaranteed by design, test, or statistical analysis. Typical numbers are not guaranteed, but do represent the

most likely norm.

(3)

Current flows into the pin.

Submit Documentation Feedback

3

Product Folder Links: LM3519

同様の部品番号 - LM3519

メーカー	部品番号	データシート	部品情報
National Semiconductor ...	LM3519	1Mb / 14P	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control
	LM3519MK-20	1Mb / 14P	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control
	LM3519MKX-20	1Mb / 14P	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control

More results

同様の説明 - LM3519

メーカー	部品番号	データシート	部品情報
National Semiconductor ...	LM3519	1Mb / 14P	High Frequency Boost White LED Driver with High-Speed PWM Brightness Control
Maxic Technology Corpor...	MT7261	167Kb / 1P	Boost White LED Driver With High Frequency PWM Dimming
Rohm	BD60A00NUX	956Kb / 26P	White LED Driver With PWM Brightness Control
Maxic Technology Corpor...	MT7282	353Kb / 1P	Boost/Buck-Boost/Buck White LED Driver With High Frequency PWM Dimming
Maxic Technology Corpor...	MT7285	190Kb / 1P	Boost/Buck-Boost/Buck White LED Driver With High Frequency PWM Dimming
Global Mixed-mode Techn...	G5139	54Kb / 1P	Boost White LED Driver with PWM Brightness Control in 2mm x 2mm TDFN Package
Global Mixed-mode Techn...	G5129	53Kb / 1P	Boost White LED Driver with PWM Brightness Control in 2mm x 2mm TDFN Package
Will Semiconductor Ltd.	WD3148	1Mb / 17P	White LED Driver with PWM Brightness Control in Tiny Package
Shanghai awinic technol...	AW9962	1Mb / 24P	White LED Driver with PWM Brightness Control in Small Package
Micrel Semiconductor	MIC2298	428Kb / 13P	3.5A Minimum, 1MHz Boost High Brightness White LED Driver