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參數資料
| 型號： | MAX5971AETI+T |
| 廠商： | Maxim Integrated |
| 文件頁數： | 1/22頁 |
| 文件大小： | 2126K |
| 描述： | IC CTRLR PD IEEE 802.3AF 28WQFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 類型： | 以太網供電控制器 PD 開關（PoE） |
| 應用： | 供電設備（PSE） |
| 內部開關： | 是 |
| 電流限制： | 可調 |
| 電源電壓： | 32 V ~ 60 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 28-TQFN-EP（5x5） |
| 包裝： | 帶卷 (TR) |
_______________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxims website at www.maxim-ic.com.
Single-Port, 40W, IEEE 802.3af/at PSE
Controller with Integrated MOSFET
19-5142; Rev 1; 9/10
Typical Operating Circuit
General Description
The MAX5971A is a single-port, power-sourcing equip-
ment (PSE) power controller designed for use in IEEE
?/DIV>
802.3af/at-compliant PSE. This device provides powered
device (PD) discovery, classification, current limit, and
DC and AC load-disconnect detections. The MAX5971A
operates automatically without the need for any software
programming and features an integrated power MOSFET
and sense resistor. The device also supports new Class 5
and 2-event classification for detection and classification
of high-power PDs. The MAX5971A provides up to 40W
to a single port (Class 5 enabled) and still provides high-
capacitance detection for legacy PDs.
The MAX5971A provides input undervoltage lockout
(UVLO), input overvoltage lockout, overtemperature
detection, output voltage slew-rate limit during startup,
and LED status indication.
The MAX5971A is available in a space-saving, 28-pin
TQFN (5mm x 5mm) power package, and is rated for the
extended (-40NC to +85NC) temperature range.
Applications
Single-Port PSE End-Point Applications
Single-Port PSE Power Injectors (Midspan
Applications)
Switches/Routers
Industrial Automation Equipment
Wireless LAN Access Point/WiMAX" Base
Station
Features
S IEEE 802.3af/at Compliant
S Up to 40W for Single-Port PSE Applications
S Integrated 0.5I Power MOSFET and Sense
Resistor
S PD Detection and Classification
S Programmable Current Limit for Class 5 PDs
S High-Capacitance Detection for Legacy Devices
S Supports Both DC and AC Load Removal
Detections
S Current Foldback and Duty Cycle-Controlled
Current Limit
S LED Indicator for Port Status
S Direct Fast-Shutdown Control Capability
S Space-Saving, 28-Pin TQFN (5mm x 5mm)
Package
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Ordering Information
IEEE is a registered service mark of the Institute of Electrical
and Electronics Engineers, Inc.
WiMAX is a trademark of WiMAX Forum.
E
V
AL
U
AT
IO
N
K
IT
AV
A
IL
AB
L
E
PART
TEMP RANGE
PIN-PACKAGE
MAX5971AETI+
-40NC to +85NC
28 TQFN-EP*
-54V
AGND
LED
PWMEN
V
EE_DIG
V
EE
LEGACY
MIDSPAN
OSC
EN
OUT
OUTP
DET
ILIM1
ILIM2
MAX5971A
PSE OUTPUT
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5971AEVKIT | 功能描述:電源管理IC開發工具 RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX5971AEVKIT+ | 制造商:Maxim Integrated Products 功能描述:PD INTERFACE CONTROLLER - Boxed Product (Development Kits) |
| MAX5971BETI | 制造商:Maxim Integrated Products 功能描述: |
| MAX5971BETI+ | 功能描述:熱插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| MAX5971BETI+T | 功能描述:熱插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 產品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
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