5秒后页面跳转
捷配首页

Datasheet > MAX8785ETI+
MAX8785ETI+ PDF预览

MAX8785ETI+

更新时间： 2024-11-21 20:38:59
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理
页数 文件大小 规格书
19页 298K
描述
Fluorescent Light Controller, 0.19A, 63kHz Switching Freq-Max, BICMOS, 5 X 5 MM, LEAD FREE, TQFN-28

阅读下载

中文翻译

获取价格

MAX8785ETI+ 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：5 X 5 MM, LEAD FREE, TQFN-28针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.74模拟集成电路 - 其他类型：FLUORESCENT LIGHT CONTROLLER
控制技术：PULSE WIDTH MODULATION最大输入电压：28 V
最小输入电压：4.5 V标称输入电压：12 V
JESD-30 代码：S-XQCC-N28JESD-609代码：e3
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：0.19 A标称输出电压：5.35 V
封装主体材料：UNSPECIFIED封装代码：HVQCCN
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认证状态：Not Qualified
座面最大高度：0.8 mm表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：63 kHz
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：5 mm
Base Number Matches：1

MAX8785ETI+ 数据手册

 浏览型号MAX8785ETI+的Datasheet PDF文件第2页浏览型号MAX8785ETI+的Datasheet PDF文件第3页浏览型号MAX8785ETI+的Datasheet PDF文件第4页浏览型号MAX8785ETI+的Datasheet PDF文件第5页浏览型号MAX8785ETI+的Datasheet PDF文件第6页浏览型号MAX8785ETI+的Datasheet PDF文件第7页 
19-0600; Rev 1; 5/08  
Full-Bridge Controller for  
Piezoelectric Transformers  
MX785A  
General Description  
Features  
Liquid-crystal display (LCD) enclosures and cold-cathode  
fluorescent lamps (CCFL) used in notebook computer  
and portable electronic displays are becoming increa-  
singly narrow, generating the need for a low-profile  
CCFL power supply. Recent advances in piezoelectric  
transformers (PZTs) have made it possible to develop  
smaller, more efficient, and safer backlight inverters for  
portable displays. Piezoelectric transformers have  
shown better performance than magnetic transformers  
with respect to efficiency, EMI requirements, human  
safety, and form factor. The MAX8785A is a full-bridge  
CCFL controller for piezoelectric transformer-based  
backlight power supplies. The full-bridge topology pro-  
vides a high-spectral purity sinusoidal drive that helps  
the PZT convert electrical energy to mechanical and  
back to electrical energy efficiently.  
o Resonant, All n-Channel, Full-Bridge Topology  
o Wide Input-Voltage Range (4.5V to 28V)  
o Frequency Sweeping Guarantees CCFL Striking  
o Feed-Forward Control Provides Excellent Line-  
Transient Response  
o Programmable Maximum Switching Frequency  
o Analog or Digital DPWM  
o Lamp-Out Detection with Adjustable Timeout  
o Fault Protection with Adjustable Timeout  
o Primary Current Limit with R  
Sensing  
DS(ON)  
o Strong Gate Drivers Support Large  
External MOSFETs  
o 28-Pin Thin QFN Package  
The MAX8785A employs a feed-forward control architec-  
ture that provides excellent line-and-load regulation while  
maintaining relatively constant switching frequency.  
The MAX8785A provides protection against open-lamp,  
secondary short-circuit, lamp arcing, and secondary  
overvoltage with adjustable timeout periods.  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX8785AETI+  
-40°C to +85°C  
28 Thin QFN*  
+Denotes lead-free package.  
*EP = Exposed pad.  
The MAX8785A guarantees lamp striking by sweeping  
the switching frequency from high to low until the lamp  
is struck. The MAX8785A achieves 10:1 dimming range  
using a digital pulse-width modulation (DPWM) method.  
CCFL brightness can be set with an analog voltage on  
the CNTL pin or through an external signal at LSYNC.  
The maximum switching frequency and DPWM frequen-  
cy can be adjusted with external resistors.  
Pin Configuration  
TOP VIEW  
28 27 26 25 24 23 22  
The MAX8785A gate drivers can drive large power  
MOSFETs typically used in high-power CCFL applica-  
tions. An internal 5.35V linear regulator powers the  
MOSFET drivers and most of the internal circuitry. The  
MAX8785A is available in a low-profile, 28-pin thin QFN  
package and operates over the -40°C to +85°C tempe-  
rature range.  
RATE  
SHDN  
CNTL  
LSYNC  
FLT  
1
2
3
4
5
6
7
21  
20  
19  
BST1  
+
V
DD1  
GL1  
18 PGND  
17 GL2  
MAX8785A  
Applications  
TFLT  
HF  
V
16  
15  
DD2  
Notebook LCDs  
BST2  
LCD TVs and Monitors  
8
9
10 11 12 13 14  
THIN QFN  
Simplified Operating Circuit appears at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
1234567...19

中文翻译

下载PDF

与MAX8785ETI+相关器件

型号 品牌 获取价格 描述 数据表
MAX8785ETI+T MAXIM

获取价格

 		Fluorescent Light Controller, 0.19A, 63kHz Switching Freq-Max, BICMOS, 5 X 5 MM, LEAD FREE
MAX878C/D MAXIM

获取价格

 		5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters
MAX878CPA MAXIM

获取价格

 		5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters
MAX878CSA MAXIM

获取价格

 		5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters
MAX878EPA MAXIM

获取价格

 		5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters
MAX878ESA MAXIM

获取价格

 		5V/3.3V/3V/Adjustable-Output, Step-Up/Step-Down DC-DC Converters
MAX878LCPA MAXIM

获取价格

 		Analog IC
MAX878LCSA MAXIM

获取价格

 		Analog IC
MAX878LEPA MAXIM

获取价格

 		Analog IC
MAX878LESA MAXIM

获取价格

 		Analog IC

与MAX8785ETI+相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证