參數(shù)資料
型號(hào)： LM5070SDX-80
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 穩(wěn)壓器
英文描述： Integrated Power Over Ethernet PD Interface and PWM Controller
中文描述： 0.8 A SWITCHING CONTROLLER, 665 kHz SWITCHING FREQ-MAX, DSO16
封裝： 5 X 5 MM, LLP-16
文件頁(yè)數(shù)： 1/17頁(yè)
文件大小： 833K
代理商： LM5070SDX-80
LM5070
Integrated Power Over Ethernet PD Interface and PWM
Controller
General Description
The LM5070 power interface port and pulse width modula-
tion (PWM) controller provides a complete integrated solu-
tion for Powered Devices (PD) that connect into Power over
Ethernet (PoE) systems. The LM5070 integrates an 80V,
400mA line connection switch and associated control for a
fully IEEE 802.3af compliant interface with a full featured
current mode pulse width modulator dc-dc converter. All
power sequencing requirements between the controller in-
terface and switch mode power supply (SMPS) are inte-
grated into the IC. Two options are available providing either
an 80% maximum duty cycle limit with slope compensation
(on the –80 suffix) device or a 50% maximum duty cycle limit
and no slope compensation on the (–50 suffix) device.
Features
n
Fully Compliant 802.3af Power Interface Port
n
80V, 1
, 400 mA Internal MOSFET
n
Programmable Inrush Current Limit
n
Detection Resistor Disconnect Function
n
Programmable Classification Current
n
Programmable Under-voltage Lockout with
Programmable Hysteresis
n
Thermal Shutdown Protection
n
Current Mode Pulse Width Modulator
n
Supports both Isolated and Non-Isolated Applications
n
Error Amplifier and Reference for Non-Isolated
Applications
n
Programmable Oscillator Frequency
n
Programmable Soft-start
n
80% Maximum Duty Cycle Limiter, Slope Compensation
(-80 device)
n
50% Maximum Duty Cycle Limiter, No Slope
Compensation (-50 device)
n
800 mA Peak Gate Driver
Packages
n
TSSOP-16
n
LLP-16 (5 mm x 5 mm)
20120001
December 2004
L
2004 National Semiconductor Corporation
DS201200
www.national.com
相關(guān)PDF資料
PDF描述
LM5071MT-50 Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
LM5071MT-80 Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
LM5071MTX-80 Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
LM5071MTX-50 Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
LM5071 Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM5070SDX-80/NOPB 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
LM5071 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
LM5071EVAL 功能描述:BOARD EVALUATION LM5071 RoHS:否 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:PowerWise® 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類(lèi)型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開(kāi)關(guān):3MHz 板類(lèi)型:完全填充 已供物品:板 已用 IC / 零件:MAX8969
LM5071EVAL/NOPB 功能描述:電源管理IC開(kāi)發(fā)工具 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類(lèi)型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
LM5071MT-50 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Power Over Ethernet PD Controller with Auxiliary Power Power Over Ethernet PD Controller with Auxiliary Power
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