MAX1599

更新时间： 2024-11-25 05:00:35

品牌	Logo	应用领域
美信 - MAXIM		转换器
页数	文件大小	规格书
10页	246K
描述
High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs

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MAX1599 数据手册

19-2731; Rev 1; 10/03

High-Efficiency, 26V Step-Up Converters

for Two to Six White LEDs

General Description

Features

The MAX1561/MAX1599 step-up converters drive up to

six white LEDs with a constant current to provide back-

light in cell phones, PDAs, and other hand-held

devices. The step-up converter topology allows series

connection of the white LEDs so the LED currents are

identical for uniform brightness. This configuration elim-

inates the need for ballast resistors and expensive fac-

tory calibration.

ꢀ Accurate Current Regulation for Uniform

Illumination

ꢀ High Efficiency Up to 87%

ꢀ Flexible Analog or PWM Dimming Control

ꢀ Up to 900mW Output Power with Internal 30V

MOSFET Switch

ꢀ Fast 1MHz (MAX1561) or 500kHz (MAX1599) PWM

The MAX1561/MAX1599 include an internal, high-volt-

Operation

age, low-R

N-channel MOSFET switch for high

DS(ON)

ꢀ Small, Low-Profile External Components

ꢀ 2.6V to 5.5V Input Range

efficiency and maximum battery life. A single Dual

Mode™ input provides a simple means of brightness

adjustment and on/off control. Fast 1MHz (500kHz for

the MAX1599) current-mode, pulse-width modulated

(PWM) operation allows for small input and output

capacitors and a small inductor while minimizing ripple

on the input supply/battery. Programmable soft-start

eliminates inrush current during startup.

ꢀ 26V (max) Output with Overvoltage Protection

ꢀ Optimized for Low 15mV

Input Ripple

P-P

ꢀ Soft-Start with Zero Inrush Current

ꢀ 0.3µA Shutdown Current

ꢀ Tiny 8-Pin 3mm x 3mm Thin DFN Package

Both devices are available in a space-saving, 8-pin 3mm

x 3mm thin DFN package with exposed paddle (EP).

Ordering Information

Applications

TOP

MARK

PART

TEMP RANGE PIN-PACKAGE

Cell Phones and Smart Phones

PDAs, Palmtops, and Wireless Handhelds

e-Books and Subnotebooks

8 TDFN-EP*

MAX1561ETA -40 C to +85 C

MAX1599ETA -40 C to +85 C

ACS

AHG

White LED Display Backlighting

*EP = Exposed paddle.

Pin Configuration

Typical Operating Circuit

INPUT 2.6V TO 5.5V

TOP VIEW

OUTPUT UP TO 6 LEDs

MAX1561

MAX1599

OUT

MAX1561

MAX1599

PGND

GND

COMP

CTRL

PWM OR

ANALOG

DIMMING

CTRL

PGND

3mm × 3mm

THIN DFN

COMP

GND

Dual Mode is a trademark of Maxim Integrated Products, Inc.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...10

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与MAX1599相关器件

型号	品牌	获取价格	描述	数据表
MAX1599ETA	MAXIM	获取价格	High-Efficiency, 26V Step-Up Converters for Two to Six White LEDs
MAX1599ETA+	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-16
MAX1599ETA+T	ROCHESTER	获取价格	LED DISPLAY DRIVER, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-16
MAX1599ETA+T	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-16
MAX1599ETA-T	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO-229WEEC, TDFN-16
MAX159ACPA	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin ?MAX
MAX159ACPA+	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 1 Channel, Serial Access, CMOS, PDIP8, 0.30
MAX159ACUA	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin ?MAX
MAX159ACUA+T	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 2 Channel, Serial Access, CMOS, PDSO8, M0-1
MAX159ACUA-T	MAXIM	获取价格	ADC, Successive Approximation, 10-Bit, 1 Func, 2 Channel, Serial Access, CMOS, PDSO8, M0-1

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