LTM8042 판매점 - uModule Boost LED Driver and Current Source

LTM8042 반도체 회로 부품 판매점

uModule Boost LED Driver and Current Source

Linear Technology

FEATURES

n True Color PWM™ with 3000:1 Dimming Ratio

n Operates in Boost, Buck Mode or Buck-Boost Mode

n Wide Input Voltage Range:

Operation from 3V to 30V

Transient Protection to 40V

n Gate Driver for Optional PWM Dimming with

P-channel MOSFET

n Adjustable Frequency: 250kHz to 2MHz

n Constant-Current and Constant-Voltage Regulation

n Low Shutdown Current: <1μA

n RoHS Compliant Package with Gold Pad Finish

n Tiny, Low Profile (9mm × 15mm × 2.82mm)

Surface Mount LGA Package

APPLICATIONS

n Display Backlighting

n Automotive and Avionic Lighting

n Illumination

n Scanners

L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks

and True Color PWM is a trademark of Linear Technology Corporation. All other trademarks are

the property of their respective owners.

LTM8042/LTM8042-1

µModule Boost LED Driver

and Current Source

DESCRIPTION

The LTM®8042 is a complete µModule® Boost LED Driver

specifically designed to drive LEDs up to 1A, while the

LTM8042-1 drives up to 350mA. It combines a boost

power topology with a unique current loop to operate as

a constant-current source. The PWM input provides as

much as 3000:1 LED dimming, while 10:1 analog dimming

can be accomplished by a single resistor or analog voltage

applied to the CTL pin. As with any boost topology, the

LTM8042/LTM8042-1 has an uninterrupted current path

between its input and output and is thus intolerant to a

short-circuit or overload from the output to ground.

# WHITE LEDS

LED CURRENT

350mA

12VIN

LTM8042

LTM8042-1

24VIN

LTM8042

LTM8042-1

The LTM8042/LTM8042-1 is packaged in a thermally

enhanced, compact overmolded land grid array (LGA)

package. The LTM8042/LTM8042-1 is Pb-free and a

RoHS compliant.

TYPICAL APPLICATION

µModule Boost LED Driver, Driving 8 White LEDs at 1A

VIN

16V TO 26V

4.7µF

VCC LTM8042

RUN

BSTIN/BKLED–

LED+

PWM BSTOUT/BKIN

SYNC

TGEN

RT GND CTL

33.2k

fSW = 550kHz

UP TO 26.8V

4.7µF

80421 TA01a

Efficiency vs VIN

16 17 18 19 20 21 22 23 24 25 26

VIN (V)

80421 TA01b

For more information www.linear.com/LTM8042

80421fb

LTM8042/LTM8042-1

ABSOLUTE MAXIMUM RATINGS

(Note 1)

VBCSCT,ORUUTN/B, KPIWN,ML,ETDG+E..N..,..B..S...T..I.N../.B...K..L..E..D..–.........................................4403VV

CTL, SYNC...................................................................6V

Internal Operating Temperature

(Notes 3, 4) ............................................ –40°C to 125°C

Maximum Reflow Body Temperature ................... 245°C

Storage Temperature ............................. –55°C to 125°C

PIN CONFIGURATION

VCC 6

BSTIN/BKLED–

BANK 2 BANK 3

BANK 4

BANK 5

BSTOUT/BKIN LED+

BANK 1

GND

ABCDE FGHJ KL

RUN SYNC RT SS PWM

LGA PACKAGE

77-LEAD (15mm × 9mm × 2.82mm)

TJMAX = 125°C, θJA = 15.7°C/W, θJCtop = 13.6°C/W,

θJCbottom = 4.5°C/W, θJB = 9.4°C/W

θ VALUES DETERMINED PER JESD 51-12

WEIGHT = 1.1g

TGEN

CTL

ORDER INFORMATION

PART NUMBER

LTM8042EV#PBF

LTM8042IV#PBF

LTM8042EV-1#PBF

LTM8042IV-1#PBF

PAD OR BALL FINISH

Au (RoHS)

PART MARKING*

DEVICE

FINISH CODE

LTM8042V

LTM8042V-1

PACKAGE TYPE

LGA

MSL RATING

TEMPERATURE RANGE

(Note 4)

–40°C to 125°C

Consult Marketing for parts specified with wider operating temperature

ranges. *Device temperature grade is indicated by a label on the shipping

container. Pad or ball finish code is per IPC/JEDEC J-STD-609.

• Terminal Finish Part Marking:

www.linear.com/leadfree

• Recommended LGA and BGA PCB Assembly and Manufacturing

Procedures:

www.linear.com/umodule/pcbassembly

• LGA and BGA Package and Tray Drawings:

www.linear.com/packaging

80421fb

2 For more information www.linear.com/LTM8042

PDF 파일 내의 페이지 : 총 30 페이지

제조업체: Linear Technology

( linear )

LTM8042 led

데이터시트 다운로드 :

[ LTM8042.PDF ]

[ LTM8042 다른 제조사 검색 ]

국내 전력반도체 판매점

상호 : 아이지 인터내셔날

전화번호 : 051-319-2877

[ 홈페이지 ]

IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈

( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )

전력반도체 문의 : 010-3582-2743

일반적인 전자부품 판매점

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LTM8042 반도체 회로 부품 판매점

uModule Boost LED Driver and Current Source

국내 전력반도체 판매점

일반적인 전자부품 판매점

관련 데이터시트