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MAX1856EUB-T

更新时间： 2024-09-12 13:10:27
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
18页 593K
描述
Switching Controller, Current-mode, 575kHz Switching Freq-Max, BICMOS, PDSO10, MICRO MAX PACKAGE-10

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MAX1856EUB-T 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：SOIC
包装说明：MICRO MAX PACKAGE-10针数：10
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.21
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：28 V最小输入电压：3 V
标称输入电压：5 VJESD-30 代码：S-PDSO-G10
JESD-609代码：e0长度：3 mm
湿度敏感等级：1功能数量：1
端子数量：10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：TSSOP封装形状：SQUARE
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：245
认证状态：Not Qualified座面最大高度：1.1 mm
表面贴装：YES切换器配置：SINGLE
最大切换频率：575 kHz技术：BICMOS
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn85Pb15)
端子形式：GULL WING端子节距：0.5 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 mmBase Number Matches：1

MAX1856EUB-T 数据手册

 浏览型号MAX1856EUB-T的Datasheet PDF文件第2页浏览型号MAX1856EUB-T的Datasheet PDF文件第3页浏览型号MAX1856EUB-T的Datasheet PDF文件第4页浏览型号MAX1856EUB-T的Datasheet PDF文件第5页浏览型号MAX1856EUB-T的Datasheet PDF文件第6页浏览型号MAX1856EUB-T的Datasheet PDF文件第7页 
19-1898; Rev 0; 2/01  
Wide Input Range, Synchronizable,  
PWM SLIC Power Supply  
General Description  
Features  
The MAX1856 offers a low-cost solution for generating a  
SLIC (ringer and off-hook) power supply. Using standard  
off-the-shelf transformers from multiple vendors, the  
MAX1856 generates various output voltages: -24V and  
-72V (dual output) for both ringer and off-hook supplies for  
voice-enabled broadband consumer premises equipment  
(CPE), -48V for IP phones and routers, -5V and -15V (sin-  
gle or dual output) for DSL CO line drivers, or negative  
voltages as high as -185V for MEMS bias supplies. The  
output voltages are adjusted with an external voltage  
divider.  
o Low-Cost, Off-the-Shelf Transformer  
o 3V to 28V Input Range  
o Low Audio-Band Noise on Talk Battery  
o Effectively Handles Ring Trip Transients  
o Powers 2-, 4-, or 12-Line Equipment  
o High Efficiency Extends Battery Life During  
Life-Line Support Conditions  
o Adjustable 100kHz to 500kHz Switching  
Due to its wide operating voltage range, the MAX1856  
operates from a low-cost, unregulated DC power supply  
for cost-sensitive applications like xDSL, cable modems,  
set-top boxes, LMDS, MMDS, WLL, and FTTH CPE. The  
MAX1856 provides low audio-band noise for talk battery  
and a sturdy output capable of handling the ring trip con-  
ditions for ring battery.  
Frequency  
o Clock Synchronization  
o Internal Soft-Start  
o Current-Mode PWM and Idle Mode™ Control  
Scheme  
o Logic-Level Shutdown  
o 10-Pin µMAX Package  
The operating frequency can be set between 100kHz and  
500kHz with an external resistor in free-running mode. For  
noise-sensitive applications, the MAX1856’s operating fre-  
quency can be synchronized to an external clock over its  
operating frequency range.  
The flyback topology allows operation close to 50% duty  
cycle, offering high transformer utilization, low ripple cur-  
rent, and less stress on input and output capacitors.  
Internal soft-start minimizes startup stress on the input  
capacitor, without any external components.  
Ordering Information  
PART  
TEMP. RANGE  
PIN-PACKAGE  
MAX1856EUB  
-40°C to +85°C  
10 µMAX  
The MAX1856’s current-mode control scheme does not  
require external loop compensation. The low-side current-  
sense resistor provides accurate current-mode control  
and overcurrent protection.  
Typical Operating Circuit  
Applications  
INPUT  
3V TO 28V  
OUT2  
-72V  
VoIP Ringer and Off-Hook Voltage Generators  
Cable and DSL Modems  
Set-Top Boxes  
1
2
2
V
CC  
SYNC/SHDN  
LDO  
Wireless Local Loop  
FTTH  
EXT  
CS  
OUT1  
-24V  
LMDS/MMDS  
FREQ  
Routers  
2
MAX1856  
Industrial Power Supplies  
CO DSL Line Driver Supplies  
MEMS Bias Supplies  
GND  
FB  
PGND  
REF  
Idle Mode is a trademark of Maxim Integrated Products.  
________________________________________________________________ Maxim Integrated Products  
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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MAX1856EUB-T 替代型号

型号 品牌 替代类型 描述 数据表
MAX1856EUB+ MAXIM

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MAX1856EUB MAXIM

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 Wide Input Range, Synchronizable, PWM SLIC Power Supply

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