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DS2480B/T&R PDF预览

DS2480B/T&R

更新时间: 2024-02-02 11:51:00
品牌 Logo 应用领域
美信 - MAXIM 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
32页 478K
描述
Line Driver, 1 Func, 1 Driver, PDSO8, 0.150 INCH, SOP-8

DS2480B/T&R 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SOIC包装说明:0.150 INCH, SOP-8
针数:8Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.4差分输出:NO
驱动器位数:1输入特性:STANDARD
接口集成电路类型:LINE DRIVER接口标准:EIA-232-C
JESD-30 代码:R-PDSO-G8JESD-609代码:e0
长度:4.9 mm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封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):245
认证状态:Not Qualified最大接收延迟:
座面最大高度:1.75 mm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温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)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

DS2480B/T&R 数据手册

 浏览型号DS2480B/T&R的Datasheet PDF文件第24页浏览型号DS2480B/T&R的Datasheet PDF文件第25页浏览型号DS2480B/T&R的Datasheet PDF文件第26页浏览型号DS2480B/T&R的Datasheet PDF文件第28页浏览型号DS2480B/T&R的Datasheet PDF文件第29页浏览型号DS2480B/T&R的Datasheet PDF文件第30页 
DS2480B  
Figure 11d. UART DIRECT OPTO-ISOLATED  
5 V  
5V  
DC to DC  
12 V  
Converter  
2.7K  
5.1K  
VDD  
SIN  
VPP POL  
(RXD)  
5.1K  
2.7K  
DS2480B  
UART  
or µC  
1-Wire Bus  
*
1-W  
RXD  
HCPL-2300  
SOUT  
DS9503  
TXD  
(TXD)  
GND  
DS9503  
1
Return  
L
M
Start  
0
Stop  
* only one DS950x ESD protection device with 5V  
The circuit in Figure 11d is essentially the same as in Figure 11a. The main difference is the opto-  
isolation. The characteristics of the opto-isolators are not very critical. Using a different type will affect  
the values of the resistors that limit the current through the LEDs and bias the photo transistors.  
Figure 11e. ±5 TO 12V RS232 OPTO-ISOLATED  
5V  
Regulator  
DC/DC  
+12VDC Programming  
VPP  
Power Stealing  
DTR  
Convert.  
5V  
1.5K  
VDD POL  
RTS  
HCPL-2202  
SIN  
1-Wire Bus  
*
UART  
or µC  
1.5K  
RXD 1-W  
DS2480B  
(RXD)  
SOUT  
(TXD)  
DS9503  
TXD  
HCPL-2300  
GND  
2.7K  
DS9503  
1 µf  
Return  
* only one DS950x ESD protection device with 5V  
1
L
M
Start  
0
Stop  
The circuit in Figure 11e combines the true RS232C interface with opto-isolation. The energy to power  
the LED in the TXD channel and to provide the positive voltage for the host’s RXD input is stolen from  
DTR and RTS. The negative voltage for the RXD input is taken from the TXD line through a parasitic  
supply consisting of a Schottky diode in series with a capacitor. The HCPL-2202 opto-isolator has a  
totem pole output that allows switching in positive as well as negative voltage. The +5V are sufficient for  
most RS232C systems. Switching in 12V requires an opto-isolator with different voltage characteristics.  
In the schematic the HCPL-2202 opto-isolator is sourced by the RXD pin of the DS2480B. It can as well  
be connected the traditional way where the DS2480B sinks the current through the LED. This, however,  
causes a signal inversion that has to be compensated through the DS2480B by using a value code of 100,  
101, 110, or 111 for the RS232 baud rate setting. Using other types of opto-isolators than shown in the  
schematic will at least require changing the values of the resistors.  
Maxim Integrated...........................................................................................................................................................................................27  

DS2480B/T&R 替代型号

型号 品牌 替代类型 描述 数据表
DS2480B MAXIM

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Serial to 1-Wire Line Driver
DS2480B+T&R MAXIM

功能相似

Line Driver, 1 Func, 1 Driver, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOP-8

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