Datasheet > LTM8042IVPBF

LTM8042IVPBF

更新时间： 2024-09-23 11:41:23

品牌	Logo	应用领域
凌特 - Linear		驱动器
页数	文件大小	规格书
32页	258K
描述
μModule Boost LED Driver and Current Source

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中文翻译

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数据手册

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LTM8042IVPBF 数据手册

LTM8042/LTM8042-1

µModule Boost LED Driver

and Current Source

FEATURES

DESCRIPTION

True Color PWM™ with 3000:1 Dimming Ratio

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

muchas3000:1LEDdimming,while10:1analogdimming

canbeaccomplishedbyasingleresistororanalogvoltage

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.

Operates in Boost, Buck Mode or Buck-Boost Mode

Wide Input Voltage Range:

Operation from 3V to 30V

Transient Protection to 40V

Gate Driver for Optional PWM Dimming with

P-channel MOSFET

Adjustable Frequency: 250kHz to 2MHz

Constant-Current and Constant-Voltage Regulation

Low Shutdown Current: <1ꢀA

RoHS Compliant Package with Gold Pad Finish

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

# WHITE LEDS LED CURRENT

12V

24V

Surface Mount LGA Package

LTM8042

350mA

LTM8042-1

APPLICATIONS

LTM8042

350mA

LTM8042-1

Display Backlighting

Automotive and Avionic Lighting

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.

Illumination

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.

TYPICAL APPLICATION

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

Efficiency vs V_IN

UP TO 26.8V

LTM8042

–

16V TO 26V

LED

RUN

BSTIN/BKLED

BSTOUT/BKIN

PWM

SYNC

TGEN

4.7μF

GND CTL

4.7μF

33.2k

= 550kHz

16 17 18 19 20 21 22 23 24 25 26

(V)

80421 TA01b

80421 TA01a

80421fa

12 3 4 5 6 7...32

中文翻译

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与LTM8042IVPBF相关器件

型号	品牌	获取价格	描述	数据表
LTM8045	LINEAR_DIMENSIONS	获取价格	Dual 8A per Channel Low VIN DC/DC Î¼Module Re
LTM8045	Linear	获取价格	Inverting or SEPIC Î¼Module DC/DC Converter w
LTM8045	ADI	获取价格	具高达 700mA 输出电流的负输出或 SEPIC μModule DC/DC 转换器
LTM8045EY#PBF	Linear	获取价格	LTM8045 - Inverting or SEPIC µModule (Power Module) DC/DC Converter with Up to 70
LTM8045IY	Linear	获取价格	LTM8045 - Inverting or SEPIC µModule (Power Module) DC/DC Converter with Up to 70
LTM8045IY#PBF	Linear	获取价格	LTM8045 - Inverting or SEPIC µModule (Power Module) DC/DC Converter with Up to 70
LTM8045MPY	Linear	获取价格	LTM8045 - Inverting or SEPIC µModule (Power Module) DC/DC Converter with Up to 70
LTM8045MPY#PBF	Linear	获取价格	LTM8045 - Inverting or SEPIC µModule (Power Module) DC/DC Converter with Up to 70
LTM8046	Linear Systems	获取价格	Dual SEPIC or Inverting Module DC DC Converter
LTM8046	Linear	获取价格	Dual SEPIC or Inverting Î¼Module DC/DC Conver

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