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MAX253CPA

更新时间: 2024-11-17 22:55:27
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
16页 232K
描述
Transformer Driver for Isolated RS-485 Interface

MAX253CPA 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:DIP
包装说明:PLASTIC, DIP-8针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5
接口集成电路类型:INTERFACE CIRCUITJESD-30 代码:R-PDIP-T8
JESD-609代码:e0长度:9.375 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP8,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):240电源:5 V
认证状态:Not Qualified座面最大高度:4.572 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:NO技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn85Pb15)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:7.62 mmBase Number Matches:1

MAX253CPA 数据手册

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19-0226; Rev 0; 1/94  
Tra n s fo rm e r Drive r fo r  
Is o la t e d RS -4 8 5 In t e rfa c e  
MAX253  
_______________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
The MAX253 is a monolithic oscillator/power-driver,  
specifically designed to provide isolated power for an  
is ola te d RS-485 or RS-232 d a ta inte rfa c e . It  
drives a center-tapped transformer primary from a 5V  
or 3.3V DC p owe r s up p ly. The s e c ond a ry c a n b e  
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  
8-Pin DIP, SO, and µMAX Packages  
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 e ns ure 50% d uty c yc le to e a c h of the s witc he s .  
Internal delays are arranged to ensure break-before-  
make action between the two switches.  
The SD pin puts the entire device into a low-power  
shutdown state, disabling both the power switches and  
oscillator.  
______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
0°C to +70°C  
PIN-PACKAGE  
8 Plastic DIP  
8 SO  
________________________Ap p lic a t io n s  
MAX253CPA  
MAX253CSA  
MAX253CUA  
MAX253C/D  
MAX253EPA  
MAX253ESA  
MAX253EUA  
MAX253MJA  
0°C to +70°C  
Isolated RS-485/RS-232 Power-Supply  
Transformer Driver  
0°C to +70°C  
8 µMAX  
High Noise-Immunity Communications Interface  
Isolated and/or High-Voltage Power Supplies  
Bridge Ground Differentials  
0°C to +70°C  
Dice*  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-55°C to +125°C  
8 Plastic DIP  
8 SO  
8 µMAX  
Medical Equipment  
8 CERDIP**  
Process Control  
* Contact factory for dice specifications.  
**Contact factory for availability and processing to MIL-STD-883.  
__________________P in Co n fig u ra t io n  
__________Typ ic a l Op e ra t in g Circ u it  
V
IN  
5V  
TOP VIEW  
ON / OFF  
C1  
4
6
OUTPUT  
SD  
V
CC  
5V @ 200mA  
1
8
D1  
D1  
GND1  
FS  
1
2
3
4
8
7
6
5
D2  
C3  
C2  
GND2  
MAX253  
MAX253  
V
CC  
3
SD  
N.C.  
FS  
D2  
FREQUENCY  
SWITCH  
GND1  
GND2  
7
DIP/SO/µMAX  
2
________________________________________________________________ Maxim Integrated Products  
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .  

MAX253CPA 替代型号

型号 品牌 替代类型 描述 数据表
MAX253CPA+ MAXIM

类似代替

Interface Circuit, CMOS, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8
MAX253EPA+ MAXIM

功能相似

Interface Circuit, CMOS, PDIP8, ROHS COMPLIANT, PLASTIC, DIP-8

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Transformer Driver for Isolated RS-485 Interface
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MAX253CSA+T MAXIM

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MAX253CUA+ MAXIM

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MAX253CUA+T MAXIM

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MAX253CUA-T MAXIM

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MAX253EPA MAXIM

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Transformer Driver for Isolated RS-485 Interface