5秒后页面跳转
捷配首页

Datasheet > MAX8834
MAX8834 PDF预览

MAX8834

更新时间： 2024-09-13 02:52:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
44页 984K
描述
Adaptive Step-Up Converters with 1.5A Flash Driver

阅读下载

中文翻译

获取价格

MAX8834 数据手册

 浏览型号MAX8834的Datasheet PDF文件第2页浏览型号MAX8834的Datasheet PDF文件第3页浏览型号MAX8834的Datasheet PDF文件第4页浏览型号MAX8834的Datasheet PDF文件第5页浏览型号MAX8834的Datasheet PDF文件第6页浏览型号MAX8834的Datasheet PDF文件第7页 
EVALUATION KIT AVAILABLE  
MAX8834Y/MAX8834Z  
Adaptive Step-Up Converters  
with 1.5A Flash Driver  
General Description  
Features  
o 2.5V to 5.5V Operation Range  
o Step-Up DC-DC Converter  
The MAX8834Y/MAX8834Z flash drivers integrate a  
1.5A PWM DC-DC step-up converter and three pro-  
grammable low-side, low-dropout LED current regula-  
tors. The step-up converter features an internal  
switching MOSFET and synchronous rectifier to  
improve efficiency and minimize external component  
1.5A Guaranteed Output Current  
2
Adaptive or I C Programmable Output Voltage  
2MHz and 4MHz Switching Frequency Options  
o Two Flash/Movie LED Current Regulators  
2
count. An I C interface provides flexible control of step-  
2
I C Programmable Flash and Movie Current  
up converter output voltage setting, movie/flash mode  
selection, flash timer duration settings, and current reg-  
ulator settings. The MAX8834Y/MAX8834Z operate  
down to 2.5V, making them future proof for new battery  
technologies.  
Low-Dropout Voltage (110mV max) at 500mA  
o LED Indicator Current Regulator  
2
I C Programmable Output Current  
Ramp and Blink Timers for Indicator Mode  
Low-Dropout Voltage (130mV max) at 16mA  
The MAX8834Y/MAX8834Z consist of two current regula-  
tors for the flash/movie mode. Each current regulator can  
sink 750mA in flash mode and 125mA in movie mode.  
The MAX8834Y/MAX8834Z also integrate a 16mA low-  
current regulator that can be used to indicate camera  
status. The indicator current regulator includes program-  
mable ramp and blink timer settings. A programmable  
input current limit, invoked using the GSMB control,  
reduces the total current drawn from the battery during  
PA transmit events. This ensures the flash current is set  
to the maximum possible for any given operating condi-  
tion. Additionally, the MAX8834Y/MAX8834Z include a  
MAXFLASH function that adaptively reduces flash cur-  
rent during low battery conditions to help prevent system  
undervoltage lockup.  
2
o I C Programmable Safety and Watchdog Timers  
o GSM Blank Logic Input  
o MAXFLASH System Lockup Protection  
o Remote Temperature Sensor Input  
o Open/Short LED Detection  
o Thermal Shutdown Protection  
o < 1µA Shutdown Current  
o 20-Bump, 0.5mm Pitch, 2.5mm x 2.0mm WLP  
Applications  
Cell Phones and Smart Phones  
PDAs, Digital Cameras, and Camcorders  
Other features include an optional NTC input for finger-  
burn protection and open/short LED detection. The  
MAX8834Y switches at 2MHz, providing best overall  
efficiency. The MAX8834Z switches at 4MHz, providing  
smallest overall solution size. The MAX8834Y/  
MAX8834Z are available in a 20-bump, 0.5mm pitch  
WLP package (2.5mm x 2.0mm).  
Typical Operating Circuit  
1µH OR 2.2µH  
PROGRAMMABLE  
OUTPUT  
INPUT  
2.5V TO 5.5V  
3.7V TO 5.2V  
LX  
IN  
OUT  
10µF  
10µF  
Ordering Information  
AGND  
PGND  
SWITCHING  
PIN-PACKAGE FREQUENCY  
(MHz)  
TEMP  
PART  
COMP  
FLED1  
MAX8834Y  
MAX8834Z  
RANGE  
1.5A TOTAL  
FLASH  
-40°C to 20 WLP  
+85°C (2.5mm x 2.0mm)  
FLED2  
MAX8834YEWP+T  
MAX8834ZEWP+T  
2
4
PA_TXON  
GSMB  
LED_EN  
SCL  
-40°C to 20 WLP  
+85°C (2.5mm x 2.0mm)  
INDLED  
16mA INDICATOR  
FLASH ON  
FGND  
NTC  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape and reel.  
2
I C  
SDA  
V
LOGIC  
FINGER-BURN  
PROTECTION  
Pin Configuration appears at end of data sheet.  
V
DD  
0.1µF  
Visit www.maximintegrated.com/products/patents for  
product patent marking information.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-4421; Rev 2; 2/10  
1234567...44

中文翻译

下载PDF

与MAX8834相关器件

型号 品牌 获取价格 描述 数据表
MAX8834Y MAXIM

获取价格

 		Adaptive Step-Up Converters with 1.5A Flash Driver
MAX8834Y ADI

获取价格

 		自适应升压型转换器，提供1.5A闪光灯驱动
MAX8834YEWP+T MAXIM

获取价格

 		Adaptive Step-Up Converters with 1.5A Flash Driver
MAX8834Z MAXIM

获取价格

 		Adaptive Step-Up Converters with 1.5A Flash Driver
MAX8834ZEWP+T MAXIM

获取价格

 		Adaptive Step-Up Converters with 1.5A Flash Driver
MAX8836Z MAXIM

获取价格

 		1.2A PWM Step-Down Converter in 2mm x 2mm WLP/UCSP for PA Power
MAX8836ZEREEE+ MAXIM

获取价格

 		Switching Regulator
MAX8836ZEREEE+T MAXIM

获取价格

 		1.2A PWM Step-Down Converter in 2mm x 2mm WLP/UCSP for PA Power
MAX8836ZEWEEE+T MAXIM

获取价格

 		Switching Regulator, Voltage-mode, 1.2A, PBGA16, 2 X 2 MM, 0.70 MM HEIGHT, ROHS COMPLIANT,
MAX883C MAXIM

获取价格

 		5V/3.3V or Adjustable, Low-Dropout, Low IQ, 200mA Linear Regulators

与MAX8834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