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MAX253ESA/V+

更新时间： 2024-11-05 13:01:59
品牌 Logo 应用领域
美信 - MAXIM 变压器驱动器
页数 文件大小 规格书
18页 536K
描述
Interface Circuit, CMOS, PDSO8, ROHS COMPLIANT, SOP-8

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中文翻译

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MAX253ESA/V+ 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Not Recommended零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.06Is Samacsys：N
接口集成电路类型：INTERFACE CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e3长度：4.9 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP8,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
认证状态：Not Qualified筛选级别：AEC-Q100
座面最大高度：1.75 mm子类别：Other Interface ICs
最大供电电压：5.5 V最小供电电压：4.5 V
标称供电电压：5 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

MAX253ESA/V+ 数据手册

 浏览型号MAX253ESA/V+的Datasheet PDF文件第2页浏览型号MAX253ESA/V+的Datasheet PDF文件第3页浏览型号MAX253ESA/V+的Datasheet PDF文件第4页浏览型号MAX253ESA/V+的Datasheet PDF文件第5页浏览型号MAX253ESA/V+的Datasheet PDF文件第6页浏览型号MAX253ESA/V+的Datasheet PDF文件第7页 
19-0226; Rev 2; 4/10  
Transformer Driver for  
Isolated RS-485 Interface  
MAX253  
_______________General Description  
____________________________Features  
The MAX253 monolithic oscillator/power-driver is  
specifically designed to provide isolated power for an  
isolated RS-485 or RS-232 data interface. The device  
drives a center-tapped transformer primary from a 5V  
or 3.3V DC power supply. The secondary can be  
wound to provide any isolated voltage needed at power  
levels up to 1W.  
♦ Power-Supply Transformer Driver for Isolated  
RS-485/RS-232 Data-Interface Applications  
♦ Single 5V or 3.3V Supply  
♦ Low-Current Shutdown Mode: 0.4µA  
♦ Pin-Selectable Frequency: 350kHz or 200kHz  
The MAX253 consists of a CMOS oscillator driving a  
pair of N-channel power switches. The oscillator runs  
at double the output frequency, driving a toggle flip-flop  
to ensure 50% duty cycle to each of the switches.  
Internal delays are arranged to ensure break-before-  
make action between the two switches.  
®
♦ 8-Pin DIP, SO, and µMAX Packages  
______________Ordering Information  
PART  
MAX253CPA  
MAX253CSA  
MAX253CUA  
MAX253C/D  
MAX253EPA  
MAX253ESA  
MAX253ESA/V  
MAX253MJA  
TEMP RANGE  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
0°C to +70°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
The SD pin puts the entire device into a low-power  
shutdown state, disabling both the power switches and  
oscillator.  
8 μMAX  
Dice*  
________________________Applications  
8 Plastic DIP  
8 SO  
Isolated RS-485/RS-232 Power-Supply  
Transformer Driver  
8 SO  
High Noise-Immunity Communications Interface  
Isolated and/or High-Voltage Power Supplies  
Bridge Ground Differentials  
8 CERDIP**  
*Contact factory for dice specifications.  
**Contact factory for availability and processing to MIL-STD-883.  
Devices are also available in a lead(Pb)-free/RoHS-compliant  
package. Specify lead-free by adding a (+) to the part number  
when ordering.  
Medical Equipment  
Process Control  
/V Denotes an automotive qualified part.  
__________Typical Operating Circuit  
V
5V  
IN  
ON / OFF  
C1  
4
6
OUTPUT  
SD  
V
CC  
5V @ 200mA  
1
D1  
C3  
C2  
MAX253  
3
8
FS  
D2  
FREQUENCY  
SWITCH  
GND1  
GND2  
7
2
µMAX is a registered trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ 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.  
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