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SP6231EN中文资料

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DESCRIPTION
The SP6231 Evaluation Board is designed to help the user evaluate the performance of the SP6231 for use as a dual power source for applications like a DSC with USB port power for downloading. The Evaluation Board operates from a 5V main supply which can be from the on-board USB connector, providing a regulated 3.3V output at 500mA or if that input is not present then from a 3.3V AUX switch input. The 3.3V AUX input is available from an on-board option: Sipex’s SP6641B 2 Cell Battery Boost Converter to 3.3V auxiliary supply.
The SP6231 Evaluation Board can be used to provide glitch free transition between two supplies. When the main power 5.0V input drops below 4.4V the auxiliary 3.3V is switched to the output through the internal PFET. Thus, the SP6231 guarantees 3.3V
output “glitch free” operation.
SP6231REB SCHEMATIC SP6231 500MA LDO WITH AUX SWITCH
VIN 5V
USING THE EVALUATION BOARD
To power up the SP6231 evaluation board, connect +5.0Vin (or use the USB connector) to the Vin 5V post and GND located on the top right corner of the SP6231 evaluation board. Connect +3.3V Auxiliary Power to the VAUX 3.3V post and GND pin near the
U2 IC. An alternative 3.3VAUX input to U2 is to use U1, the SP6641B DC/DC converter located on the left side of the Board. The SP6641B boost converter can provide 3.3V out from a Battery input of 1.0V @ 150mA or 2.0V @ 400mA for the 3.3VAUX (see figure 3 for SP6641B maximum load current curve). Just connect the Battery voltage input to the VBATT and GND posts.
The SHDN connector J1 can be used to enable or disable the SP6641B. If the
SP6641B is not used the wire jumper J2 can be removed and the VAUX 3.3V input alone should be used. Low voltage start up voltage for the SP6641B is around 0.9V at light load RL=3.0KΩ.
Connect the Load to the pins Vout 3.3V and GND on the right side of the Board. EVALUATION BOARD DATA
Vin = 5V Supply
Ch1 = Vout (AC)
Ch4 = Iout 500mA/div FIGURE 2. Switching: Vaux to Vin to Vaux Vin = 5V, Vaux = 3.3V, Iout = 300mA
Ch1 = Vin
Ch2 = Vaux (AC)(SP6641B 3.3Vo, 2.6Vin) Ch3 = Vout (AC)
Figure 3. SP6641B Maximum Load Current in Operation Vin Vaux Vout
Vout Iout
PC LAYOUT DRAWING
FIGURE 4. SP6231REB COMPONENT PLACEMENT
FIGURE 5. SP6231REB PC LAYOUT TOP SIDE
FIGURE 6. SP6231REB PC LAYOUT BOTTOM SIDE
SP6231 EVALUATION BOARD BILL OF MATERIALS
ORDERING INFORMATION
Model Temperature Range Package Type SP6231EB............................. -40°C to +85°C......................SP6231EB Evaluation Board SP6231ER............................. -40°C to +85°C...................................................6 Pin DFN SP6231EN............................. -40°C to +85°C...............................................8 Pin NSOIC。

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waytronic-wt8673-功放芯片说明书

waytronic-wt8673-功放芯片说明书

WT8673功放芯片说明书V1.01 Note：WAYTRONIC ELECTRONIC CO.,LTD.reserves the right to change this document without prior notice. Information provided by WAYTRONIC is believed to be accurate and reliable.However,WAYTRONIC makes no warranty for any errors which may appear in this document.Contact WAYTRONIC to obtain the latest version of device specifications before placing your orders.No responsibility is assumed by WAYTRONIC for any infringement of patent or other rights of third parties which may result from its use.In addition,WAYTRONIC products are not authorized for use as critical components in life support devices/systems or aviation devices/systems,where a malfunction or failure of the product may reasonably be expected to result in significant injury to the user,without theWT8673具备扩频功能,低空载电流固定24倍增益,免滤波,2X40W 立体声,80W 单声道D 类音频放大器输出功率@单通道Po at 10%THD+N,VDD=18V@RL=4Ω47W Po at 10%THD+N,VDD=21V@RL=4Ω64W Po at 10%THD+N,VDD=24V@RL=4Ω82W 输出功率@Po at 10%THD+N,VDD=16V@RL=4Ω2X33W Po at 10%THD+N,VDD=21V@RL=8Ω2X33W Po at 10%THD+N,VDD=24V@RL=8Ω2X42W .较大的电源电压范围5V~-26V .效率高达92%,无需散热片.固定24倍增益,集成15K输入电阻,360K的反馈电阻``.扩频功能.音频系统带滤波网络,待机电流小于20mA .免滤波功能.输出管脚方便布线布局.良好短路保护和具备自动恢复功能的温度保护.良好的失真和防噗声功能.差分输入封装应用:ESOP16LCD TV家庭音响系统典型应用电路概要WT8673是一款2x40W立体声;在单声道使用的情况下;最高可输出80W高效D类音频功率放大电路。

IPC-623 用户手册说明书

IPC-623 用户手册说明书

User ManualIPC-6234U, 20-slot Rackmount IndustrialChassis4U, 20槽上架式工业机箱4U, 20槽上架式工業機箱Copyright/版权声明/版權聲明The documentation and the software included with this product are copyrighted 2018 by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right to improve the products described in this manual at any time without notice. No part of this manual may be reproduced, copied, translated, or transmitted in any form or by any means without the prior written permission of Advantech Co., Ltd. The infor-mation provided in this manual is intended to be accurate and reliable. However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringements of the rights of third parties that may result from its use.随附本产品发行的文件为研华公司2018年版权所有，并保留相关权利。

针对本手册中相关产品的说明，研华公司保留随时变更的权利，恕不另行通知。

PI LNK623-626PG中文资料

PI LNK623-626PG中文资料



3
Rev. B 11/08
LNK623-626
应用范例
D1 FR106
F1
L
3.15 A
85 - 265 VAC
N RT1 10 7
RV1 275 V
D3 1N4007
L1 3.5 × 7.6 mm Ferrite Bead
D2 FR106
R1 5.1 k7 1/8 W
2
Rev. B 11/08

LNK623-626
LinkSwitch-CV功能描述
LinkSwitch-CV在一个器件上集成了一个高压功率MOSFET开关 及一个电源控制器。与LinkSwitch-LP和TinySwitch-III相似， 它使用开／关控制方式来调节输出电压。LinkSwitch-CV控制器 包括一个振荡器、反馈（检测及逻辑）电路、6 V稳压器、过热 保护、频率调制、电流限流电路、前沿消隐功能以及用于恒压 控制的开／关状态机。
一旦反馈引脚电压在反激期间降低到VFBth-0.3 V以下，而在反馈引 脚采样延迟时间（约2.5 μs）超过200 ms（自动重启动导通时 间tAR-ON）之前，转换器进入自动重启动模式，此时功率 MOSFET被禁止2.5 秒（约8%的自动重启动占空比）。自动重启动 电路对功率MOSFET进行交替使能和关闭，直到故障排除为止。
经整流及滤波的输入电压加在T1初级绕组的一侧。U1中集成的 MOSFET驱动变压器初级绕组的另一侧。D5、R1、R2、C3和 VR1组成箝位电路，对漏感引起的漏极电压尖峰进行限制。本电 路选用了齐纳二极管泄放箝位电路，以获得最低的空载输入功 率，但在接受较高空载输入功率的应用中，可以省去VR1并提高 R1值，以形成标准RCD箝位。
AD623AN中文资料

AD623AN中文资料


Conditions G = 1 + (100 k/RG)
Min 1
AD623A Typ Max 1000
Min 1
AD623ARM Typ Max 1000
Min 1
AD623B Typ Max .05 V to 3.5 V G > 1 VOUT = 0.05 V to 4.5 V 0.03 0.10 0.10 0.10 G1 VOUT = 0.05 V to 3.5 V G > 1 VOUT = 0.05 V to 4.5 V 50 5 50 Total RTI Error = VOSI + VOSO/G 25 0.1 200 2.5 200 350 2 1000 1500 10 200 0.1 500 2.5 500 650 2 2000 2600 10 25 0.1 200 2.5 100 160 1 500 1100 10 10 50 5 50 10 50 5 50 10 ppm ppm/°C ppm/°C 0.10 0.35 0.35 0.35 0.03 0.10 0.10 0.10 0.10 0.35 0.35 0.35 0.03 0.10 0.10 0.10 0.05 0.35 0.35 0.35 % % % %
90
CMR – dB
80 70 x10 60 50 40 30 x1
1
10
100 1k FREQUENCY – Hz
10k
100k
Figure 1. CMR vs. Frequency, +5 VS , 0 VS
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: Fax: 781/326-8703 © Analog Devices, Inc., 1999