参数资料
型号: ADM2486BRWZ
厂商: Analog Devices Inc
文件页数: 9/20页
文件大小: 0K
描述: IC TXRX RS-485 ISOLATED 16-SOIC
标准包装: 47
系列: iCoupler®
类型: 收发器,隔离式
驱动器/接收器数: 1/1
规程: RS422/RS485
电源电压: 3V,5V
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
产品目录页面: 790 (CN2011-ZH PDF)
Data Sheet
ADM2486
Rev. E | Page 17 of 20
ISOLATED POWER SUPPLY CIRCUIT
The ADM2486 requires isolated power capable of 5 V at up to
approximately 75 mA (this current is dependent on the data
rate and termination resistors used) to be supplied between the
VDD2 and the GND2 pins.
A transformer driver circuit with a center-tapped transformer
and LDO can be used to generate the isolated 5 V supply, as
shown in Figure 32. The center-tapped transformer provides
electrical isolation of the 5 V isolated power supply. The primary
winding of the transformer is excited with a pair of square
waveforms that are 180° out of phase with each other. A pair
of Schottky diodes and a smoothing capacitor are used to create
a rectified signal from the secondary winding. The ADP667
linear voltage regulator provides a regulated 5 V power supply
to the ADM2486’s bus-side circuitry (VDD2).
VCC
ISO 5V
ADP667
IN
10F
100nF
OUT
GND
5V
SET
SD103C
SHDN
VDD1
GND1
VDD2
GND2
ADM2486
22F
78253
ISOLATION BARRIER
TRANSFORMER
DRIVER
04604-
035
100nF
Figure 32. Isolated Power Supply Circuit
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ADM2486BRWZ-REEL 功能描述:IC TXRX RS-485 ISOLATED 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:iCoupler® 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC(0.295",7.50mm 宽) 供应商设备封装:28-SOIC 包装:管件
ADM2487E 制造商:AD 制造商全称:Analog Devices 功能描述:2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver
ADM2487EBRWZ 功能描述:IC TXRX RS485 ISO W/ESD 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 产品培训模块:RS-232 & USB Transceiver 标准包装:2,000 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SSOP(0.209",5.30mm 宽) 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:296-19849-2
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