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MAX5941ACSE

更新时间： 2024-11-18 22:38:59
品牌 Logo 应用领域
美信 - MAXIM 电源电路电源管理电路光电二极管信息通信管理控制器以太网
页数 文件大小 规格书
24页 452K
描述
IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices

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MAX5941ACSE 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：SOP, SOP16,.4针数：16
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.15
Is Samacsys：N可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUIT控制模式：CURRENT-MODE
JESD-30 代码：R-PDSO-G16JESD-609代码：e0
长度：9.9 mm湿度敏感等级：1
信道数量：1功能数量：1
端子数量：16最高工作温度：70 °C
最低工作温度：最大输出电流：0.3 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP16,.4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座面最大高度：1.75 mm
子类别：Switching Regulator or Controllers最大供电电压 (Vsup)：67 V
最小供电电压 (Vsup)：18 V标称供电电压 (Vsup)：48 V
表面贴装：YES最大切换频率：314 kHz
技术：BICMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn85Pb15)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

MAX5941ACSE 数据手册

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19-3069; Rev 0; 10/03  
IEEE 802.3af-Compliant Power-Over-Ethernet  
Interface/PWM Controller for Power Devices  
General Description  
Features  
The MAX5941A/MAX5941B integrate a complete power  
IC for powered devices (PD) in a power-over-ethernet  
(PoE) system. The MAX5941A/MAX5941B provide a PD  
interface and a compact DC-DC PWM controller suitable  
for flyback and forward converters in either isolated or  
nonisolated designs.  
ꢀ Powered Device Interface  
Fully Integrated IEEE 802.3af-Compliant PD  
Interface  
PD Detection and Programmable Classification  
Signatures  
Less than 10µA Leakage Current Offset During  
Detection  
The MAX5941A/MAX5941B PD interface complies with  
the IEEE 802.3af standard, providing the PD with a detec-  
tion signature, a classification signature, and an integrat-  
ed isolation switch with programmable inrush current  
control. These devices also feature power-mode under-  
voltage lockout (UVLO) with wide hysteresis and power-  
good status outputs.  
Integrated MOSFET for Isolation and Inrush  
Current Limiting  
Gate Output Allows External Control of the  
Internal Isolation FET  
Programmable Inrush Current Control  
Programmable Undervoltage Lockout  
ꢀ PWM Controller  
The MAX5941A/MAX5941B also integrate all the building  
blocks necessary for implementing DC-DC fixed-  
frequency isolated power supplies. These devices are a  
current-mode controller with an integrated high startup  
circuit suitable for isolated telecom/industrial voltage-  
range power supplies. A high-voltage startup circuit  
allows the PWM controller to draw power directly from the  
18V to 67V input supply during startup. The switching fre-  
quency is internally trimmed to 275kHz 10ꢀ, thus  
reducing magnetics and filter components. The  
MAX5941A allows an 85ꢀ operating duty cycle and can  
be used to implement flyback converters. The MAX5941B  
limits the operating duty cycle to less than 50ꢀ and can  
be used in single-ended forward converters. The  
MAX5941A/MAX5941B are designed to work with or with-  
out an external diode bridge in front of the PD.  
Wide Input Range: 18V to 67V  
Current-Mode Control  
Leading-Edge Blanking  
Internally Trimmed 275kHz 10ꢀ Oscillator  
Soft-Start  
Ordering Information  
PIN-  
MAX DUTY  
PART  
TEMP RANGE  
PACKAGE CYCLE (ꢀ)  
MAX5941AESE  
MAX5941ACSE  
MAX5941BESE  
MAX5941BCSE  
-40°C to +85°C  
0°C to +70°C  
-40°C to +85°C  
0°C to +70°C  
16 SO  
16 SO  
16 SO  
16 SO  
85  
85  
50  
50  
The MAX5941A/MAX5941B are available in 16-pin SO  
packages.  
Applications  
IP Phones  
Wireless Access Nodes  
Internet Appliances  
Computer Telephony  
Security Cameras  
Pin Configuration  
TOP VIEW  
V+  
DD  
1
2
3
4
5
6
7
8
16 V  
CC  
V
15 NDRV  
14 V-  
Power Devices in Power-Over-Ethernet/  
Power-Over-MDI  
OPTO  
SS_SHDN  
ULVO  
MAX5941A  
MAX5941B  
13 CS  
12 GND  
11 PGOOD  
10 PGOOD  
Typical Operating Circuit appears at end of data sheet.  
RCL  
GATE  
V
9
OUT  
EE  
SO  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...24

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MAX5941ACSE 替代型号

型号 品牌 替代类型 描述 数据表
MAX5941AESE-T MAXIM

类似代替

 Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941ACSE+ MAXIM

功能相似

 Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941AESE+ MAXIM

功能相似

 Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,

与MAX5941ACSE相关器件

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MAX5941ACSE+ MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941ACSE+ ROCHESTER

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 		1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, 0.150 INCH, MS-012AC, SOP-16
MAX5941ACSE+T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941ACSE-T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941AESE MAXIM

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 		IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5941AESE+ MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941AESE-T MAXIM

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 		Power Supply Support Circuit, Adjustable, 1 Channel, BICMOS, PDSO16, 0.150 INCH, MS-012AC,
MAX5941A-MAX5941B MAXIM

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 		IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5941B MAXIM

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 		IEEE 802.3af-Compliant Power-Over-Ethernet Interface/PWM Controller for Power Devices
MAX5941B ADI

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 		符合IEEE 802.3af标准的以太网供电接口/PWM控制器，适用于用电设备

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