Datasheet > MAX1578ETG+T

MAX1578ETG+T

更新时间： 2024-09-14 21:19:35

品牌	Logo	应用领域
美信 - MAXIM		驱动信息通信管理接口集成电路
页数	文件大小	规格书
13页	261K
描述
LED Driver, 1-Segment, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WGGD-2, TQFN-24

阅读下载

中文翻译

获取价格

技术参数
数据手册
替代型号

如果您发现信息不准确，欢迎纠错

MAX1578ETG+T 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN, LCC24,.16SQ,20	针数：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
接口集成电路类型：	LED DISPLAY DRIVER	JESD-30 代码：	S-XQCC-N24
JESD-609代码：	e3	长度：	4 mm
湿度敏感等级：	1	复用显示功能：	NO
功能数量：	1	区段数：	1
端子数量：	24	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC24,.16SQ,20
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	电源：	3/5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Display Drivers	最大供电电压：	5.5 V
最小供电电压：	2.7 V	标称供电电压：	3 V
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4 mm	Base Number Matches：	1

MAX1578ETG+T 数据手册

19-3359; Rev 1; 8/05

Complete Bias and White LED Power Supplies

for Small TFT Displays

General Description

Features

♦ Four Regulators in One Package

The MAX1578/MAX1579 provide four regulated outputs

to meet all the voltage requirements for small active-

matrix TFT-LCD displays in handheld devices where

minimum external components and high efficiency are

required. Each device consists of three advanced

charge pumps for LCD bias power and a step-up con-

verter for driving up to 8 series white LEDs for back-

lighting. The input voltage range is from 2.7V to 5.5V.

♦ Bias Power Using Charge Pumps

+5V at 25mA for Source Driver

+15V at 100µA for V

-10V at 100µA for V

OFF

No External Diodes Required

Output Sequencing

POS, NEG, and MAIN Are Autodischarged

During Shutdown

♦ LED Backlight Power Using Boost Converter

Series LED Connection for Uniform Illumination

Supports Up to 8 LEDs at 25mA (max)

900mW (max) Power

The charge pumps provide fixed +5V, +15V, and -10V

for the LCD bias circuits. No external diodes are need-

ed. A high-efficiency, fractional (1.5x/2x) charge pump

followed by a low-dropout linear regulator provides +5V

to power the source driver. Automatic mode changing

achieves the highest conversion efficiency. Two multi-

stage, high-voltage charge pumps generate +15V and

PWM or Analog Dimming Control

Overvoltage Protection

Low Input/Output Ripple

-10V to provide V

and V , respectively. Utilizing a

OFF

Soft-Start with Zero Inrush Current

Fast 1MHz PWM Operation for Small

Component Size

unique clocking scheme and internal drivers, these

charge pumps eliminate parasitic charge-current glitch-

es and reduce maximum input current, resulting in low

electromagnetic emissions. The outputs are sequenced

during startup and shutdown. In shutdown, the outputs

are discharged to zero.

Temperature Derating Function (MAX1579)

♦ High Efficiency

Bias: 83% (5.0V at 25mA, 15V/-10V at 100µA)

LED: 84% (6 LEDs at 20mA)

The high-efficiency inductor step-up converter drives

up to 8 white LEDs in series with a constant current to

provide backlighting. The series connection allows the

LED currents to be identical for uniform brightness and

minimizes the number of traces to the LEDs. The

MAX1578 regulates constant LED current over the

entire temperature range. The MAX1579 features a tem-

perature derating function to avoid overdriving the

white LEDs during high ambient temperatures, enabling

higher drive current below +42°C.

♦ Uses Only Ceramic Capacitors and Only One

Inductor

♦ Independent Enable Inputs for LED and Bias

Power

♦ Thermal-Shutdown Protection

♦ 1µA Shutdown Current

♦ Tiny 4mm x 4mm Thin QFN Package

Pin Configuration

The MAX1578/MAX1579 are available in space-saving

24-lead 4mm x 4mm thin QFN packages.

18 17 16 15 14 13

Applications

PDAs, Palmtops

Smart Phones

LCD Displays with

White LED Backlight

C1N 19

GND

ONBIAS

NEG

C2N

Internet Appliances

CD2

MAX1578

MAX1579

C2P

Ordering Information

CD1

C1P 23

PART

TEMP RANGE PIN-PACKAGE

24 Thin QFN 4mm x 4mm

PMPB

MAX1578ETG

-40°C to +85°C

(T2444-4)

24 Thin QFN 4mm x 4mm

(T2444-4)

MAX1578ETG+ -40°C to +85°C

+ Denotes lead-free package.

THIN QFN

4mm x 4mm

See Figure 3 for Typical Application Circuit.

Ordering Information continued at end of data sheet.

________________________________________________________________ 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...13

中文翻译

下载PDF

MAX1578ETG+T 替代型号

型号	品牌	替代类型	描述	数据表
MAX1578ETG+	MAXIM	完全替代	暂无描述

与MAX1578ETG+T相关器件

型号	品牌	获取价格	描述	数据表
MAX1578ETG-T	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGD-2, TQFN-24
MAX1578-MAX1579	MAXIM	获取价格	Complete Bias and White LED Power Supplies for Small TFT Displays
MAX1579	MAXIM	获取价格	Complete Bias and White LED Power Supplies for Small TFT Displays
MAX1579	ADI	获取价格	可提供完备偏置的白光LED电源，用于TFT显示器
MAX1579ETG	MAXIM	获取价格	Complete Bias and White LED Power Supplies for Small TFT Displays
MAX1579ETG	ROCHESTER	获取价格	LED DISPLAY DRIVER, QCC24, 4 X 4 MM, 0.80 MM HEIGHT, MO-220WGGD-2, TQFN-24
MAX1579ETG+	MAXIM	获取价格	LED Driver, 1-Segment, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, LEAD FREE, MO-220WGGD-2, TQFN-24
MAX157ACPA	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin ?MAX
MAX157ACUA	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin ?MAX
MAX157AEPA	MAXIM	获取价格	+2.7V, Low-Power, 2-Channel, 108ksps, Serial 10-Bit ADCs in 8-Pin ?MAX

与MAX1578ETG+T相关文章

SL74HC10N：高性能三输入与非门解析
2024-09-03

80
AIC1781A 电池充电控制器深度解析
2024-09-03

70
Pickering新高压舌簧继电器亮相汽车测试博览会
2024-08-26

100
采用MCU+MPU双处理器架构实现的创新应用设计探索
2024-08-23

117

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX1578ETG+T

MAX1578ETG+T 技术参数

MAX1578ETG+T 数据手册

MAX1578ETG+T 替代型号

与MAX1578ETG+T相关器件

与MAX1578ETG+T相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX1578ETG+T

MAX1578ETG+T 技术参数

MAX1578ETG+T 数据手册

MAX1578ETG+T 替代型号

与MAX1578ETG+T相关器件

与MAX1578ETG+T相关文章

您还可以找

您在本页遇到什么问题？