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以太网供电 (PoE) IC
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LM5070

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具有反激式直流/直流控制器和可调节 UVLO 的 3 级 PoE PD

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数据表

LM5070

正在供货
数据表 立即订购

产品详情

Vin (min) (V) 1.8 Vin (max) (V) 75 PoE current limit (min) (mA) 300 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 1000 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Thermal Cycling Features Error amplifier, Programmable UVLO, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
Vin (min) (V) 1.8 Vin (max) (V) 75 PoE current limit (min) (mA) 300 PoE inrush limit (mA) (typ) (A) Programmable rDS(on) per FET (typ) (mΩ) 1000 PoE standards supported 802.3at Type 1 (802.3af) PD power level 13W DC/DC control PD and DC/DC Fault response Thermal Cycling Features Error amplifier, Programmable UVLO, Thermal shutdown Operating temperature range (°C) -40 to 125 Rating Catalog
TSSOP (PW) 16 32 mm² 5 x 6.4 WSON (NHQ) 16 25 mm² 5 x 5
  • Fully Compliant 802.3af Power Interface Port
  • 80V, 1Ω, 400 mA Internal MOSFET
  • Programmable Inrush Current Limit
  • Detection Resistor Disconnect Function
  • Programmable Classification Current
  • Programmable Under-voltage Lockout with Programmable Hysteresis
  • Thermal Shutdown Protection
  • Current Mode Pulse Width Modulator
  • Supports Both Isolated and Non-Isolated Applications
  • Error Amplifier and Reference for Non-Isolated Applications
  • Programmable Oscillator Frequency
  • Programmable Soft-Start
  • 80% Maximum Duty Cycle Limiter, Slope Compensation (-80 device)
  • 50% Maximum Duty Cycle Limiter, No Slope Compensation (-50 device)
  • 800 mA Peak Gate Driver

Packages

  • TSSOP-16
  • WSON-16 (5 mm x 5 mm)

All trademarks are the property of their respective owners.

  • Fully Compliant 802.3af Power Interface Port
  • 80V, 1Ω, 400 mA Internal MOSFET
  • Programmable Inrush Current Limit
  • Detection Resistor Disconnect Function
  • Programmable Classification Current
  • Programmable Under-voltage Lockout with Programmable Hysteresis
  • Thermal Shutdown Protection
  • Current Mode Pulse Width Modulator
  • Supports Both Isolated and Non-Isolated Applications
  • Error Amplifier and Reference for Non-Isolated Applications
  • Programmable Oscillator Frequency
  • Programmable Soft-Start
  • 80% Maximum Duty Cycle Limiter, Slope Compensation (-80 device)
  • 50% Maximum Duty Cycle Limiter, No Slope Compensation (-50 device)
  • 800 mA Peak Gate Driver

Packages

  • TSSOP-16
  • WSON-16 (5 mm x 5 mm)

All trademarks are the property of their respective owners.

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution 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 interface and switch mode power supply (SMPS) are integrated 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.

The LM5070 power interface port and pulse width modulation (PWM) controller provides a complete integrated solution 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 interface and switch mode power supply (SMPS) are integrated 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.
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TPS23753A 正在供货 具有增强型 ESD 穿越功能的 IEEE 802.3-2005 PoE 接口和隔离转换器控制器 This product integrates the PD & PWM controller and provides more robust protection from unexpected voltage transients (rated to 100V).

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类型 标题 下载最新的英语版本 日期
* 数据表 LM5070 Integrated Power Over Ethernet PD Interface and PWM Controller 数据表 (Rev. G) 2013年 3月 29日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
用户指南 AN-1346 LM5070 (Rev. C) 2013年 5月 6日
用户指南 AN-1358 LM5070 (Rev. A) 2013年 5月 6日
应用手册 App Note 1408 Designing Pwr Over Ethernet Using LM5070 and DP83865 2011年 11月 23日
应用手册 The LM507X Family of PoE Devices: Frequently Asked Questions (FAQs) (cn) 2006年 5月 10日
应用手册 Application Note 1346 LM5070 "HE" Evaluation Board (cn) 2006年 3月 13日

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封装 引脚 下载
TSSOP (PW) 16 查看选项
WSON (NHQ) 16 查看选项
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包含信息：
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  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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