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参数资料
| 型号： | MAX5980GTJ+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/49页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PD IEEE 802.3AF 32TQFN |
| 标准包装： | 60 |
| 类型： | 以太网供电控制器 PD 开关（PoE） |
| 应用： | 供电设备（PSE） |
| 内部开关： | * |
| 电流限制： | * |
| 电源电压： | * |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
| 包装： | 管件 |
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19-5568; Rev 1; 9/11
Quad, IEEE 802.3at/af PSE Controller
for Power-over-Ethernet
General Description
The MAX5980 is a quad, power-sourcing equipment
(PSE) power controller designed for use in IEEE ?
802.3at/af-compliant PSE. This device provides powered
device (PD) discovery, classification, current limit, and
load disconnect detection. The device supports both
fully automatic operation and software programmability.
The device also supports new 2-event classification and
Class 5 for detection and classification of high-power
PDs. The device supports single-supply operation, pro-
vides up to 70W t o each port (Class 5 enabled), and still
provides high-capacitance detection for legacy PDs.
The device features an I 2 C-compatible, 3-wire serial
interface, and is fully software configurable and pro-
grammable. The device provides instantaneous readout
of port current and voltage through the I 2 C interface. The
device’s extensive programmability enhances system
flexibility, enables field diagnosis, and allows for uses in
other, nonstandard applications.
The device is available in a space-saving, 32-pin TQFN
(5mm x 5mm) power package and is rated for the auto-
motive (-40 N C to +105 N C) temperature range.
Features
S IEEE 802.3at/af Compliant
S 0.25 I Current-Sensing Resistor
S Up to 70W per Port for PSE Applications
S 9-Bit Port Current and Voltage Monitoring
S I 2 C-Compatible, 3-Wire Serial Interface
S Supports Single-Supply Operation
S High-Capacitance Detection for Legacy Devices
S Supports DC Load-Removal Detections
S Space-Saving, 32-Pin TQFN (5mm x 5mm) Power
Package
Applications
PSE-ICM
Power-Sourcing Equipment (PSE)
Switches/Routers
Midspan Power Injectors
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
IEEE is a registered service mark of the Institute of Electrical and
Electronics Engineers, Inc.
MAX5980GTJ+ -40 N C to +105 N C 32 TQFN-EP*
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* EP = Exposed pad.
Simplified Operating Circuit
AGND
PORT 1
EN
-54V
V DD
OUT1
OUTPUT
GATE1
PORT 2
OUTPUT
EN
OUT2
AUTO
MIDSPAN
EN_CL5
A0
A1
A2
A3
MAX5980
GATE2
OUT3
GATE3
OUT4
GATE4
PORT 3
OUTPUT
PORT 4
OUTPUT
-54V
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5980GTJ+ | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980GTJ+T | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980UTJ+ | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5980UTJ+T | 功能描述:电源开关 IC - POE / LAN 0-16V Hot-Swap Controller RoHS:否 制造商:Fairchild Semiconductor 开关数量:Single 开关配置:SPST 开启电阻（最大值）:7.3 Ohms 串话: 带宽: 开启时间（最大值）:13 ns 关闭时间（最大值）:20 ns 切换电压（最大）: 工作电源电压:8 V to 26 V 最大工作温度:+ 125 C 安装风格:Through Hole 封装 / 箱体:TO-220F-6 |
| MAX5981AETE+ | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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