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參數資料
| 型號： | MAX5984DETI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/22頁 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PD IEEE W/MOSFT 28TQFN |
| 標準包裝： | 60 |
| 系列： | * |
_______________________________________________________________ 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.
MAX5984
Single-Port, 40W, IEEE 802.3af/at PSE
Controller with Integrated MOSFET
19-6142; Rev 0; 12/11
Typical Operating Circuit
General Description
The MAX5984 is a single-port, power-sourcing equip-
ment (PSE) power controller designed for use in IEEE
802.3af/at-compliant PSE. This device provides powered
device (PD) discovery, classification, current limit, and
DC and AC load-disconnect detections. The MAX5984
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 MAX5984 provides up to 40W to
a single port (Class 5 enabled) and still provides high-
capacitance detection for legacy PDs.
The MAX5984 provides input undervoltage lockout
(UVLO), input overvoltage lockout, overtemperature
detection, output voltage slew-rate limit during startup,
and LED status indication.
The MAX5984 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)
PoE Repeaters
Switches/Routers
Industrial Automation Equipment
Wireless LAN Access Point/WiMAX Base
Stations
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
2-Event Pin-Select (MAX5984A/MAX5984B)
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.
**Future product—Contact factory for availability.
Ordering Information
IEEE is a registered service mark of the Institute of Electrical and Electronics Engineers, Inc.
WiMAX is a registered service mark of WiMAX Forum Corp.
EVALUATION
KIT
AVAILABLE
-54V
AGND
LED
2-EVENT
VEE_DIG
VEE
LEGACY
MIDSPAN
OSC
EN
OUT
OUTP
DET
ILIM1
ILIM2
MAX5984A
PSE OUTPUT
PART
PIN-
SELECT
TEMP RANGE
PIN-
PACKAGE
MAX5984AETI+
2-EVENT -40NC to +85NC 28 TQFN-EP*
MAX5984BETI+** 2-EVENT -40NC to +85NC 28 TQFN-EP*
MAX5984CETI+** PWMEN
-40NC to +85NC 28 TQFN-EP*
MAX5984DETI+
LSCEN
-40NC to +85NC 28 TQFN-EP*
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5984DETI+ | 功能描述:其他電源管理 1-Port 40W IEEE 802.3af/at PSE Ctlr RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| MAX5984DETI+T | 功能描述:其他電源管理 1-Port 40W IEEE 802.3af/at PSE Ctlr RoHS:否 制造商:Texas Instruments 輸出電壓范圍: 輸出電流:4 mA 輸入電壓范圍:3 V to 3.6 V 輸入電流: 功率耗散: 工作溫度范圍:- 40 C to + 110 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-48 封裝:Reel |
| MAX5986AETE+ | 功能描述:直流/直流開關轉換器 IEEE802.3 af PD w/ DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX5986AETE+T | 功能描述:直流/直流開關轉換器 IEEE802.3 af PD w/ DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX5986BETE+ | 功能描述:以太網 IC IEEE802.3 AF HI EFFICIENCY PD RoHS:否 制造商:Micrel 產品:Ethernet Switches 收發器數量:2 數據速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
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