LM2792LDX-L datasheet(1/10 Pages) NSC

부품명	LM2792LDX-L

상세설명	Current Regulated Switched Capacitor LED Driver with Analog Brightness Control

Download	10 Pages

Scroll/Zoom	100%

제조업체	NSC [National Semiconductor (TI)]

홈페이지	http://www.national.com

Logo

1 / 10 page

LM2792

Current Regulated Switched Capacitor LED Driver with

Analog Brightness Control

General Description

The LM2792 is a CMOS charge-pump voltage doubler and

regulator that provides two regulated current sources. They

are designed to drive two white (or blue) LEDs with matched

currents (within ± 0.3%) to produce balanced light sources

for display backlights. The LM2792 accepts an input voltage

range from 3.0V to 5.8V and maintain a constant current

determined by an external set resistor.

The LM2792 delivers up to 34mA of load current to accom-

modate two high forward voltage (typically white) LEDs. The

switching frequency is 900kHz (min.) to keep the conducted

noise spectrum away from sensitive frequencies within por-

table RF devices.

The LM2792 offers full off to maximum current control

through the BRGT pin. The output current linearly tracks the

BRGT pin voltage. The LM2792 is available in active high or

low shutdown versions. The shutdown pin reduces the op-

erating current to 1µA (max.).

The LM2792 is available in a 10 pin leadless leadframe

(LLP) CSP package.

Features

n

Output matching of ± 0.3% (typ.)

n

Drives up to two LED’s

n

3.0V to 5.8V Input Voltage

n

Up to 34mA output current

n

Soft start limits inrush current

n

Analog brightness control

n

Separate shutdown input

n

Very small solution size and no inductor

n

1.4mA typical operating current

n

1µA (max.) shutdown current

n

900kHz switching frequency (min.)

n

Linear regulation generates predictable noise spectrum

n

LLP-10 package: 3mm X 3mm X 0.8mm

Applications

n

White LED Display Backlights

n

White LED Keypad Backlights

n

1-Cell Li-Ion battery-operated equipment including

PDAs, hand-held PCs, cellular phones

n

Flat Panel Dispalys

Basic Application Circuit

20024201

July 2002

DS200242

www.national.com

유사한 부품 번호 - LM2792LDX-L

제조업체	부품명	데이터시트	상세설명
National Semiconductor ...	LM2791	226Kb / 11P	Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
Texas Instruments	LM2791	1Mb / 18P	[Old version datasheet] LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
National Semiconductor ...	LM2791LD-H	226Kb / 11P	Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
National Semiconductor ...	LM2791LD-L	226Kb / 11P	Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
Texas Instruments	LM2791LD-L	1Mb / 18P	[Old version datasheet] LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control

More results

유사한 설명 - LM2792LDX-L

제조업체	부품명	데이터시트	상세설명
National Semiconductor ...	LM2791	226Kb / 11P	Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
Texas Instruments	LM2791	1Mb / 18P	[Old version datasheet] LM2791 Current Regulated Switched Capacitor LED Driver with Analog Brightness Control
Texas Instruments	LM2794	1Mb / 21P	[Old version datasheet] Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control
National Semiconductor ...	LM2794	487Kb / 16P	Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control
Texas Instruments	LM2794	1Mb / 24P	[Old version datasheet] LM2794 /LM2795 Current Regulated Switched Capacitor LED Supply with Analog and PWM Brightness Control
Texas Instruments	LM3503	1Mb / 28P	[Old version datasheet] Dual-Display Constant Current LED Driver with Analog Brightness Control
National Semiconductor ...	LM3503	1Mb / 20P	Dual-Display Constant Current LED Driver with Analog Brightness Control
Texas Instruments	LM3503	1Mb / 28P	[Old version datasheet] Dual-Display Constant Current LED Driver with Analog Brightness Control
National Semiconductor ...	LM3503	1Mb / 20P	Dual-Display Constant Current LED Driver with Analog Brightness Control
National Semiconductor ...	LM2751	8Kb / 11P	Regulated 2X, 1.5X Switched Capacitor White LED Driver

More results

LM2792LDX-L 데이터시트(PDF) 1 Page - National Semiconductor (TI)

LM2792LDX-L 데이터시트(HTML) 1 Page - National Semiconductor (TI)

유사한 부품 번호 - LM2792LDX-L

유사한 설명 - LM2792LDX-L

Html Pages

1 2 3 4 5 6 7 8 9 10

데이터시트 다운로드

링크 URL