LM5071
- Compatible with 12V AC Adapters
- Fully Compliant 802.3af Power Interface Port
- 80V, 1Ω, 400 mA Internal MOSFET
- Detection Resistor Disconnect Function
- Programmable Classification Current
- Programmable Under-voltage Lockout with Programmable Hysteresis
- Thermal Shutdown Protection
- Auxiliary Power Enable Pin
- 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)
Package
- TSSOP-16
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The LM5071 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 LM5071 is specifically designed for the PD that must accept power from auxiliary sources such as AC adapters. The auxiliary power interface of the LM5071 activates the PWM controller when the ac adapter is connected to power the PD when PoE network power is unavailable. The LM5071 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.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LM5071 Power Over Ethernet PD Controller with Auxiliary Power Interface datasheet (Rev. E) | 2013年 3月 29日 | |
Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
EVM User's guide | AN-1430 LM5071 Evaluation Board (Rev. B) | 2013年 5月 6日 |
設計與開發
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PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 引腳 | 下載 |
---|---|---|
TSSOP (PW) | 16 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
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